Home Food Can the engine from behind the carburetor can smoke. Black smoke from the exhaust pipe - causes, consequences. Die diesel engine Size smoke: Causes

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Can the engine from behind the carburetor can smoke. Black smoke from the exhaust pipe - causes, consequences. Die diesel engine Size smoke: Causes

Every day car enthusiasts appeal to our site with questions "Die" engine ", "Why the engine smoke", "The engine smokes on the cold" etc., but unfortunately very often we cannot give an unequivocal answer and that's why:

Before giving recommendations for the use of "Supethek" compositions, it is necessary to clearly understand the causes of increased smoke, since the nature of its occurrence is different and is sometimes not associated with the natural wear of the cylinder-piston group - CPG. The character of smoke and its density does not provide complete information about the degree and the exact reason for the appearance of smoke, but will only tell you in which direction it is necessary to search for a malfunction. For a more complete assessment of the engine status, as a rule, additional diagnostics are required. Conditionally, the color of smoke can be divided into three main colors: white, blue, black, which in turn can create a lot of shades. Let's figure it out in the nature of its origin.

Smokes Engine: White smoke.

White smoke exhaust pipe - Completely normal phenomenon for warm engine warming modes. Only it is not smoke, but couples. Water in a vapor state is a natural fuel combustion product. In a non-fermented graduation system, this pair is partially condensed and becomes visible, and water usually appears on the cutting section of the exhaust pipe. As the engine and the exhaust system is heated, condensation decreases. The colder the environment, the more dense the steam is obtained. At temperatures below 10 ° C, steam is formed and on a well-heated engine, and when frost in minus 20 - 25 degrees, it takes a thick white color with a siza tint. On the color and saturation of the pair also affects the humidity of the air: the more it is more, the pairs are thick.

If pairs are visible in warmth and on a well-haired engine, it may be due to the coolant in the cylinders. Its shade depends on the composition of coolant, weather, illumination and on the amount of coolant in the combustion chamber. Sometimes he can acquire a gray tint and, reminding "oil" smoke. But unlike oil smoke, which leaves a bluish fog in the air, steam quickly dissipates. Man without sufficient experience, it is difficult to determine appearanceWhat is actually a source of smoke, so you can use the "Dedovsky" method of checking. To do this, it is necessary to close the seal of the exhaust pipe with a leaf of white paper briefly in a good warm engine, while the condensed pairs in the form of water droplets when the paper gets gradually evaporates and do not leave obvious fat traces. If this simple test confirmed that steam is incorporated from the exhaust system, and not oil smoke, it is necessary to take measures to eliminate the malfunction to the penetration of the coolant into the cylinders.

Liquid in cylinders

Most often, the liquid can enter the cylinders through the block of the block head due to insufficient pull (in winter It is often observed to leak the coolant at the junction of the block and the head), the progress and less often as a result of the formation of microcracks in the head or block of cylinders. In addition, these defects cause hit exhaust gases In the cooling system, forming gas plugs, which is guaranteed to indicate a malfunction.

Opening the radiator cork or the expansion tank, it is easy to notice the smell of exhaust gases and the oil film on the surface of the coolant. Yes, the level of fluid will be reduced. It is characteristic that in such cases, after starting the cold engine, the pressure in the cooling system increases increasing the coolant level in the expansion tank. Moreover, this level is unstable and in the tank one can notice the output of gas bubbles, sometimes with a periodic release of coolant from the tank.

When stopping the engine, the picture changes. The liquid begins to go into the cylinder. Gradually, it passes through the piston rings and enters the oil, in the pallet of the crankcase. With the subsequent launch, the oil with liquid is mixed, forming an emulsion and changes the color - acquires a matte tint and becomes lighter. Circulating over the lubrication system, such an emulsion leaves valve cover and a plug of oil-tapping neck characteristic foam of light yellow-brown.

If the defect (crack, squeak) is small, then no changes may not be (it happens that the oil remains clean, although the foam on the plug and the valve lid is formed). With very large damage, the liquid can accumulate over the piston, prevents the rotation crankshaft The starter at the time of launch, in particularly severe cases, it is possible to hydrate in the cylinder, deformation and breakdown of the connecting rod.

In the zones of entering the cylinder, the coolant actively cleans the NAAR, including with the spark plugs and it helps determine the place of damage. For complete check, it will take dismantling the head of the cylinder block, which allows to estimate the state of the gasket, head planes and block.

It also happens that the cooling fluid enters the cylinder through the inlet system - for example, due to the leakage of the intake manifold gasket (if it simultaneously seals the cooling fluid coolant cooling channels). In such cases, the pressure in the cooling system does not increase, the smell of exhaust gases is not in it, but the oil turns into an emulsion, and the coolant level is rapidly decreasing. These signs are usually enough to find a defect and not confuse it with the above-described, otherwise the block head will be removed in vain.

Ambulance

All the problems associated with the white smoke from the exhaust pipe require the elimination of not only direct causes, but also the mandatory testing of systems capable of affecting their appearance, thermostat, the power sensor, coupling or fan itself, the state of the radiator, its plugs, hoses, or connections. If the white smoke and the accompanying defects are noticed, then the car cannot be operated, since defects will quickly progress. But motorists are very often ignored and, without giving the values \u200b\u200bto the appearance of white smoke (steam), continue to operate the car, and at this time the coolant is already making its "black case", worsening the properties of the oil. The resulting emulsion causes elevated wear not only the cylinder-piston group, but all the nodes and mechanisms and ultimately leads to the failure of the engine.

So what can help the "Super" compositions in this situation?

Of course, he will not be able to prevent the appearance of the above faults and the more eliminate them, and accordingly influence the intensity of the vaporization. But this is exactly the case when, the use of products of the company "Suprotek" is more than justified and that is why. First, the layer formed by the compositions of the "souppet", having greater durability than the main metal, is able to withstand wear with small leaks of coolant. Secondly, having a good oil holder, will allow the engine to troubleshoot a longer time at large cooling fluid leaks when the entire volume of oil has already turned into an emulsion. Accordingly, this time reserve will allow you to detect the presence of a malfunction, take measures to prevent more serious consequences and save from more complex and expensive repairs.

Die Engine: Black Smoke

The black smoke from the exhaust pipe indicates the re-enricment of the fuel-air mixture or the deterioration of the combustion conditions of fuel, and, consequently, the faults of the fuel feed system or CPG. Such smoke is usually clearly visible on a light background and is particles of soot - the products of incomplete combustion of fuel.

Black smoke is accompanied by a large fuel consumption, often poor launch, unstable engine operation, high toxicity of exhaust gases, and often loss of power due to the non-optimal composition of the fuel and air mixture.

W. carburetor engines Black smoke usually occurs due to overflow in the float chamber due to the defect of the needle valve or due to the locking of air jets. In gasoline engines with electronic fuel injection, the re-enricment of the mixture appears, as a rule, with malfunction and failures of sensors (oxygen, air flow, etc.), as well as with nozzles of nozzles. Diesels are black smoke appears in violations in the operation of high pressure pump, nozzles and with a non-optimal acrosshead angle.

Since the operation of the engines on the re-entered mixture causes increased soot formation, this is reflected not only on the toxicity of exhaust gases. As a result, saturation of the engine oil is saturated, which in turn leads to a rapid pollution of the engine, a heat exchange violation, an acceleration of piston rings, contamination of filters and oil channels, thereby speeds up the abrasive wear. In addition, violation thermal regime The engine can lead to the root of pistons or valves, which in turn causes even more serious consequences. Not burnt completely fuel through the squeak in the piston falls into the oil and mixing with him lowers its viscosity, which is already itself affected by its anti-wear properties, and in addition, with a large concentration of fuel in oil it is possible to flash. Obviously, the operation of the engine with such faults is not only difficult, but is also extremely dangerous because it quickly leads to new, much more serious trouble.

The second main reason for the incomplete combustion of the fuel is to reduce the compression of the engine. For gasoline engines, the pressure at the end of the compression tact (compression) primarily determines the volume of air charge or oxidizing agent (oxygen). Therefore, with a decrease in the amount of air at the same fuel supply, the mixture becomes releasing with all similar consequences. In diesel engines, the pressure at the end of compression, in addition to the air charge, still determines the temperature of this charge at the time of the fuel injection. And since, set fire to fuel in diesel engines is carried out by self-ignition, then at low compression it may not be enough temperatures for this self-ignition, especially during the cold season. That is, it is a decrease in the engine's launch characteristics.

Why appropriate to apply the compositions of "Suprek"?

Obviously, in the first case, with the malfunction of fuel equipment of gasoline engines. Application engine compositions"Suprek" is not possible as a repair tool, but it is very effective as a prophylactic agent: first to reduce the effects of abrasive wear, secondly, sealing gaps in the cylinder-piston group, the possibility of breakthrough gases in Carter is reduced. If the fuel equipment faults are malfunction of diesel engines, and usually wear a plunger pair of the pump, pumping pumps through fuel will allow you to restore the fuel injection parameters and the quality of its combustion.

The second case of incomplete combustion of fuel associated with a decrease in compression is the most characteristic of the Suprek company's technology, since the layer formed on the friction surfaces is restores the compression, and, consequently, the quality of fuel combustion. Black smoke disappears, the power is restored and the fuel consumption and oil consumption is reduced.

Small Engine: Blue or Size Smoke

The main reason for the appearance of blue smoke is to enter the oil into the engine cylinders. "Oil" smoke may have blue colour With different shades - from transparent blue to thick white-blue, which depends on the mode of operation of the engine, the degree of its warm-up and the amount of oil entering the cylinders, illumination and other factors. It is characteristic that the oil smoke, in contrast to the steam, is not quickly dissipated in the air, and the above-mentioned test with paper gives fatty drops flying out of the pipe together with exhaust gases.

Oil smoke is accompanied by increased oil consumption. At transient modes, the oil smoke becomes thick. The owners of modern cars should be remembered about the presence of a neutralizer, cleaning exhaust gas from oil, even with sufficiently large expenditures. Oil in combustion chambers can fall through increased gaps in piston rings, or through gaps between valve rods and guide sleeves.

The wear of the details of the cylinder-piston group is one of the most common causes of the appearance of oil smoke.

Wear is possible both cylinder sleeves, rings and piston grooves. Moreover, large gaps in the grooves create a pumping effect, pumping oil into the combustion chamber, even if the oil lining rings are normal, the oil still enters the cylinders. The deviation of the shape of the cylinder from the circle worsens the sealing properties of the rings. In the zone of locks, lumens are usually formed, but their appearance is not excluded in other places of the circle.

Wearing the details of the cylinder-piston group are often accompanied by a compression loss and an increase in pressure of crankcase gases. However, it should be remembered that often a large amount of oil entering the cylinders well compacts the gaps in conjugate details and the result of the compression estimate can be quite normal, sometimes even closer to the upper limit. This circumstance confuses the search for the causes of blue oil smoke.

With small wear of parts, the smoke is clearly observed only when driving the engine, gradually decreasing and even disappearing. The reason is simple: heating, the details are expanding and seal the gaps. With excessively large wear, the picture is inverse: smoke on a warm engine will increase, as hot oil having a low viscosity is easier to get into the cylinder through increased gaps.

Also on the increased oil consumption affects the breakage of the jumpers between the piston grooves and the breakage of the rings themselves caused by overheating and detonation. In addition, the use of low-quality oils and late maintenance can cause burning and running rings in piston grooves with complete loss of mobility. The defects considered above are usually not in all cylinders immediately. Find the faulty cylinder is not difficult, comparing the state of the spark plug and the compression value in different cylinders. Moreover, such defects often accompany different types of extraneous noises and knocks, changing with turns, load and degree of engine warming, as well as the unstable operation of the engine due to the disconnection of the cylinders (especially when cold start).

When starting the engine, a thick smoke comes from the exhaust system often appears. Smoke can have different shades from white to blue and even black colors. The smoke stops after heating the engine, and may continue later.

If the heated engine smokes, it means that the power unit has specific faults. The color of exhaust gases indicates the stage of development of the breakdown and its seriousness.

Brief description of the symptoms accompanying the yield of smoke

In some cases, the smoke may be accompanied by the following symptoms:

difficulty when starting a cold motor;
unstable motor work like on idlingand under loads;
inconstancy of tachometer testimony (float turns);
increase and engine oil;
power loss power aggregate.

There are often situations in which the engine smoke is the only alarm signal.

The device of the car is designed for permanent unauthorized selection by the system exhausting the atmosphere of exhaust gases in the specified volumes. But if when you start the motor from the exhaust pipe, it goes smoke in large quantities, it is necessary to urgently look for the cause of the alarm symptom.

The first thing to pay attention to is the color, shades and density of smoke emanating from the engine. The most common are the following colors of released gases:

White.
The black.
Blue-gray.

Each of the listed colors of smoke can have different shades, but it is precisely this separation into groups is the main one.

Causes of Engine Smoking

Why, this is often interested in car owners. Main faults causing a strengthened exhaust pipe output:

damage arising in the fuel supply system;
wear of parts included in the cylindrophone group;
disorders in the work of the gas distribution mechanism;
problems in the cooling system.

Smoke may appear in violation of the quantitative balance of air-fuel, uneven mixing and incomplete combustion of the fuel-air mixture, failures arising from the penetration of cooling liquids or lubricants in the combustion chamber.

Each of the described reasons can affect the shade of the emissions of the cloud of smoke.

An experienced master is able to take into account the impact of defects of one system for incorrect operation of other nodes of the force aggregate. For example, malfunctions arising in the cooling system lead to overheating of the engine elements. Under the influence of ultra-high temperatures, piston rings are destroyed, tightness is disturbed, oil and coolant penetrate the cylinders, burned, forming smoke of a certain color.

After the capitals, as a rule, the smoking of the motor stops.

Transparent smoke from the exhaust pipe

Seating steam from the engine can be taken for white smoke. Steam is formed in the process of evaporation of the accumulated fluid in the cooled engine systems. The most often cluster of the fluid at the end of the exhaust pipe and the steam outlet is observed during the cold season after the engine is started.

Elements of the engine and exhaust system are heated, water is intensively evaporated. After a complete warm-up of the motor and exhaust system, the number of steam is reduced to a minimum or disappear at all.

The amount of emerging pair depends on the humidity indicators in the environment than they are higher, the longer its traces will be visible. The output of the steam is not a sign of the breakdown of parts and engine nodes, when this effect appears, repair is not required.

The output of black smoke

The greatest environmental damage is caused by black smoke clubs, emerging from the car's exhaust pipe or, directly filling from the power unit. The most likely reasons for the appearance of such a smoke are taken in the following disorders:

malfunctions of the engine control system;
disorder adjustments in fuel equipment;
reduction.

Disruption of the balance between the number of components of the fuel and air mixture towards an increase in the fuel causes not only the formation of black smoke, but also significantly increases the fuel consumption. The problem of normal mixing process may be caused by air filter pollution. Air deficiency entails an excess of fuel in the preparation of the fuel and air mixture.

Reducing the level of compression may be caused by mechanical damage to cylinders, which significantly reduces the power of the power unit and contributes to an increase in the fuel concentration in the mixture.

For accelerated diagnostics, it is necessary to study the state of spark plugs. Black raid signals that there was a need to replace candles to new samples, followed by repair of deformed elements and regulation of power unit systems.

Appearance of white smoke

Smoking engine white gas does not always produce harmless water vapor. White smoke is distinguished from the pair of the following signs:

increased smoke density;
long-term dispersion;
the presence of a steady smell of gary;
does not disappear when heating the engine.

White thick smoke coming out of the machine exhaust pipe indicates faults that arose in the cooling system. The variety of white smoke shades depends on the type of cooling liquids used, but in any case, with such exhaust, it is necessary to perform urgent repair of the engine cooling system.

Incorrect operation of the elements of the cooling system can lead to serious disorders in the functioning of the power unit as a whole.

Causes of smoke white color:

cracks in the head of the cylinder block (GBC);

getting cooling fluid into the cavity of the engine cylinder;
motor overheating;
using low quality coolant.

In case of violation of the tightness of the CFC, the coolant penetrates into the cylinders, in the engine pallet crankcase. When diluting lubricants to Tosol or antifreeze, there is a decrease in the viscosity of the oil, which is significantly reflected in its functions.

What you need to do when the white dense smoke is detected

When parsing cylinders, it is necessary to analyze the condition of the candles. The formation of a candlelight testifies to the injection of water. After examining all cylinders and glow candles, which are in them, it is necessary to repair or replace cylinders and candles. These activities are recommended to be performed using qualified masters at the nearest maintenance station.

Often, low-quality cooling fluids during contact with engine working elements cause enhanced corrosion of nodes and parts of the power unit. Cheap Tosola varieties are capable of literally to the internal parts of the engine when leakage occurs. After such an impact, repaired spoiled parts is not possible.

To make sure that the cooling fluid penetrates the combustion chamber, it is necessary to remove the cover from the expansion tank. Sharp odor Gary, reducing the level of antifreeze in the tank, the floating oil film indicate the detection of this defect.

Smoke with bluish (SIZ) tint

If the diesel or gasoline engine is very smoking with the Size Gas, then this means that machine oil Locked in one or more cylinders. When combustion, thick clubs of smoke are formed, which have a stable smell of burned oil and do not dissipate for a long time.

Depending on the variety of the engine oil used, the temperature conditions of the environment The color of the smoke may have a different blue intensity. To give a more accurate assessment of the nature of the exiting smoke and distinguish it from a standard exhaust, it is necessary to perform regular oil level test. Overrigues of machine lubrication indicates leaks.

In addition to visual analysis of the color of exhaust gases, it is checked with the help of paper applied to the exhaust pipe. If there are clear spots that have an oily character on the sheet, the reason for the exit of the pipe of the SIZY smoke with a bluish tinge becomes clear: the presence of oil in the combustion chamber.

Description of the reasons for the appearance of white smoke with a blue tint

Why smoke the engine with white gas with a SIZY or blue tint? In the study of the origin of the SIZO or blue exhaust, the following reasons are most common:

Damage to oil-challenge caps.
Local rings intended for removing oil residues from the walls of cylinders.
Fault turbocompressor.
The oil used is low quality.

The assignment of the caps is to keep the oil before serving it. Low quality and malfunction of these elements lead to loss of tightness, lubricant is constantly seeping and accumulated in the cylinders. It is worth starting a cold engine after a long break, the accumulated oil burns together with the fuel in the chamber, blue or blue smoke with a huge cloud breaks out of the car's exhaust pipe.

The wear and occurrence of the oil dialing rings leads to an excessive amount of lubricant into the engine cylinders and subsequent combustion. The use of the rings cutting method temporarily solves the problem arising, but at the same time the rings lose their elasticity, and the occurrence may resume. To avoid serious breakdowns in the power unit, it is necessary to constantly control the color of exhaust gases.

With a small wear of the engine elements, a short-term output of blue smoke when working on a cold is observed. As the motor heating, the parts are expanded as a result of increasing their temperature, which favorably affects the gaps between the mating surfaces of the elements. The yield is reduced or disappears at all.

Turbocompressor and causes of the appearance of a sizogo smoke

If the car is equipped with a turbocharger, then the output of thick gray smoke can be due to its unsatisfactory condition. As a result of the malfunction of this unit, a motor oil is leaked, intended for lubricating turbine bearings. Lubricant can permanently in the motor starting system.

In the process of combustion of the turbocharger oil, a thick gray smoke is formed that affects the irreparable harm of the atmosphere.

To diagnose the turbine, it is necessary to make the following actions:

Disconnect the turbine from the engine.
Check the availability of oil savings inside the air duct.

The accumulation of a large amount of oil in the air duct and turbine is a serious defect. When a similar situation is detected, it is necessary to immediately seek qualified help to the service center.

The effect of the quality of the oil used on the smoke formation

Engine oil must have certain characteristics. Quality used lubricant directly depends on its properties. If low-quality oil is located in the car, the viscosity coefficient of which does not correspond to the car brand or when the temperature is raised inside the engine, there is a sharp loss of beneficial properties, this leads to serious breakdowns of elements and power units. When a sizogo smoke appears, it is necessary to check the oil for compliance and, if necessary, make it a complete replacement.

The appearance of smoke can be caused by a number of other reasons - from the appearance of microcracks in the engine housing before using a non-suitable type of fuel intended for this engine brand. Each concrete situation always has a decision when applying for help to qualified specialists.

Owners personal transport Over time, faced with the problem "Why smoke the engine?" And "Is it urgently necessary to do something?". There is no definite answer. There are 3 types of smoke from the exhaust pipe.

His emergence is due primarily to the formation of condensate. Often. If this phenomenon occurs in winter or with a large moisture, then the owner does not stand it - it comes out when steam warming.
The reason for the appearance of such a smoke on a heated engine can be an antifreeze into the block. But here there is a characteristic sign - a specific smell of smoke, not confused with anything, very unpleasant. Antifreeze in the cylinders disrupts workflows and leads to a violation of the cleanliness of the surface of the cylinders and an increase in the wear of the main parts. You can not ignore such a defect!

Black smoke

Black color of car exhaust gases

Its appearance is associated with the enriched fuel and air mixture, i.e. The amount of gasoline exceeds the calculated one. This leads to washing the oil of the oil from the walls of the cylinder and, as a result, a malfunction of the cylinder pair is a piston. It is also possible to occur the engine hydrowater.
The chief satellite of the black exhaust is increased gasoline consumption. The reasons are the digit engine, there may be impaired fuel supply systems, ignition or injection control systems.

SIZY smoke

If the causes of white and black smoke were water and gasoline, then the cause is oil. If you doubt the color of smoke, whether it was "oil" can be determined by the state of the exhaust pipe. In this case, it will be fat. The faithful satellite of the SIZOE smoke is an increased oil consumption.

Why does the engine smoke and consume oil?

This is due to the ingress of oil into the combustion chamber or through the piston lubrication system, or from the valves. If this is associated with the wear of the cylinder-piston group, then you will have to resort to the transition to the repair size of the piston and to the honing of cylinders. If the reason in the valves, you will have to replace their caps. In turbocharged engines, the oil can be contacted from the turbocharger seals.

But what if the engine eats oil, but do not smoke?

Then this is a banal leakage. Inspect the vessel of the parking lot of the car, if it does not suggest anything to you, it means that it is not a gearbox. Inspect the engine in the valve cover layers, pallet. And there everything is clean? Then the reason may be in the glands on the crankshaft or in seals on the rubble.

Additives from smoke

Motor additives

Additives are aimed at increasing wear resistance, reducing friction, increase compression. All this is achieved by sticking the film in defective places of rubbing surfaces. If you have a smoke due to the small wear of the cylindroport group, then finally, of course, will not save, but as a temporary solution will fully work.

Using additives can be an option to temporarily solve the problem

And if you have a causing smoke, for example, a sensor breakdown, then no additives for oil, alas, will not help you.
Thus, the use of additives will not free you from continuous control over its vehicle and from the periodic diagnosis of its condition.

Appearance blue smoke from the exhaust pipe For many drivers, it becomes a complete surprise. Especially if this happens for the first time. Running in advance, immediately say that this is a consequence motor oil enter the engine cylinders. What are the reasons for this, and what should be done to eliminate the problem? Let's try shed light on this question.

Why smoke blue smoke from the exhaust pipe

Before diagnosing the breakdown, it is necessary to remember that the amount and color of smoke and the exhaust tube pair depends on the following factors:

heating level of the engine;
motor oil quality;
the number of engine speed;
temperature and humidity.

Usually the amount of smoke is more in crude weather, so deviations in its color and impurities are easier to see exactly then.

The color of the "blue" smoke can be different. Starting blue and ending with thick saturated blue. However, in any case, the characteristic feature is its oilyness. It is it that allows you to establish the cause of the appearance. Such smoke is poorly dissipated in the air, and in its composition there are fatty drops that literally fly out of the pipe along with the gases. In contrast, which is caused by the appearance of coolant in the cylinders, the blue smoke says the car owner that oil falls into the combustion chamber.

With the slightest suspicions for the appearance of blue smoke from the exhaust pipe, it is necessary to measure the oil level in the engine.

In addition to the direct appearance of a blue smoke from the exhaust system, there are still a number of indirect signs indicating that oil falls inside the cylinder:

engine "Troit" (running unstable);
significantly increases the level of motor oil flow rate (it can reach 1 liter per 100 km of mileage);
fast failure of spark plugs;
decreased compression value in one or more cylinders;
there are problems with the launch of the car in cold weather;
the presence of the smell of Gary in the cabin or around the car.

How oil gets into cylinders

Most often (but not always) oil into the combustion chamber falls in one of two ways, in particular, through:

piston rings;
gap between valve rods and guide bushings;
problems with turbine (on turbocharged engines).

Why oil gets into cylinders

In accordance with the above information, you can easily designate those details, the malfunction in which they led to the appearance of blue smoke from the exhaust pipe. In particular, such reasons include:

full or partial depressurization of the valve;
significant wear or failure of the oil surcharge cap;
the appearance of scratches on the surface of the cylinder;
defects in the work of piston rings;
change the geometric dimensions of one or more cylinders.

When smoke becomes white-blue. Determine the fault is easy. To do this, measure compression. It will be insignificant or absent at all. Now consider some of the situations described.

Wear oil surcharge Caps

When they are disturbing or cracking the amount of oil falling into cylinders increases at idle and during braking engine. At this time, a large vacuum occurs in the intake manifold. As a result, a large pressure difference occurs and the oil is seeping into the cylinders and accumulates on the walls in the exhaust system. At moment when throttle valve Blue smoke density opens with oil increases.

Cylinder defects

Most often it is the appearance of zadira or various defects on the surface of the cylinder. Because of them, depressurization occurs and the oil enters the combustion chamber. The reasons for the appearance of designated defects can be:

The presence of abrasive particles in oil. This may be due to the poor quality of the oil, clogging the filter or a significant mileage of the machine without replacing the engine oil.
Corrosion on rings or cylinders. It may arise as a result of different reasons. One of the common is a long parking lot of an open-air car without starting the engine.
Defects during the repair of the engine or the use of defective parts (in particular, pistons and piston rings).

Change the geometry of the cylinder

By and large, this is a natural process that occurs gradually, as the engine is exploited. Diagnostics must be carried out at a hundred, since this uses special equipment. Measures are carried out by:

in two vertical planes;
three-four levels horizontally.

Rings

They are also frequent causes the appearance of blue smoke from the exhaust pipe. The fact is that the piston exists holes that are gradually clogged with burnt oil. At the same time, the valves and cylinders are in good condition, and only cocks are ring. The reason for this can be to use low-quality fuel and / or oil. Because of this ring, poorly remove heat from the walls of the cylinders. Blue smoke appears in this case when the machine is accelerated. At the same time, the compression is reduced.

The work of the ventilation system of crankcase gases is also violated. It is designed to separate the oil and flow rate control. Accordingly, when it fails in its operation, the pressure of crankcase gases increases.

In the event of a malfunction of the cylindropore engine group, measure compression. However, if the appears of the gaps are small, then there is a possibility that the value of the compression will be high, since the incoming oil is gradually separated.

Causes of blue smoke

Possible causes of blue smoke

Non-standard causes of blue smoke

Sometimes there is a situation when it goes a gray smoke from the exhaust pipe new car. Most often it happens when driving a motor, and after it heats up, the smoke disappears. The reason for the phenomenon in this case is that the details of the new engine have not yet rushed to each other. Accordingly, there remains gaps in the cold state between them. And after heating, their geometry changes, and everything becomes in its place.

Reaching diesel engine and turbine smoking

If your car engine supplied turbineIt is possible another cause of smoking with a blue smoke from the exhaust pipe. In particular, most likely it consists in wear of seals and bearings of the compressor rotor. If the seal of the turbine is damaged, then the diagnosis is hampered by the fact that the oil falls into the exhaust system, where it hits. To diagnose simply remove the turbocharger intake nozzle and look inward. In case of damage to the seal, you will see puddle of oil.

If your machine has automatic box Transmissions (Automatic transmission), then smoke with a bluish tint may occur due to the malfunction of the membrane of its regulator if there is a vacuum load sensor. Diagnose a malfunction in this case, in this case, it is possible for significant ingun on the ignition candlelight. You can easily recognize the oil because transmission oil For automatic transmission has a reddish or yellow shade and a specific smell.

There are also a number of more serious breakdowns that are even easier to diagnose. In particular:

Breakdown of jumpers between rings on pistons or rings themselves. As a rule, this happens because of detonation.
If the engine is strongly overheated, the deformation of the piston skirts is possible. Because of this, a large gap between the piston and the cylinder appears. And on it can penetrate oil with consequences.
Deformation of the connecting rod. Such a situation may occur, for example, from or when the belt break and the piston strike on the valve, which at that time was unlocked.
When using poor-quality oil, it is possible to burn or running the rings in the piston grooves.
Also rings can be fledged in the same grooves due to prolonged vibil ignition. In this case, their complete immobilization occurs.

Usually the defects described above occur not in all cylinders, but only in one or more. The easiest way to start diagnostics with the assessment, as well as measuring the level of compression.

conclusions

The reasons why the exhaust pipe goes blue smoke, there is not so much. As a rule, problems arise with oil-challenged caps, rings, cylinders. Remember that you can use the machine, however undesirablebecause this engine work leads to increased flow Fuel and oil, as well as to power loss due to an increase in the nagar layer on the valves. If you need to use the car, then you need to do it carefully, avoiding significant loads on the engine. After all, exploitation in such conditions wear out without that "tired" engine and brings it overhaul. So when you smoke in blue smoke do not tighten with the diagnosis and repair work. Often, the timely replacement of penny oiling caps will be able to prevent expensive repair of more complex engine knots.

After several hours of downtime of the car and the subsequent start of the engine in some cases, it is possible to notice the appearance of thick smoke from the exhaust system. Such smoke can be white, nizy or black. Smoking can be sought, and attended after further warm up. It should be noted that if the engine smokes after warming up, then it indicates a certain fault.

In the color of the exhaust, it is possible to more accurately diagnose the breakdown, as well as reveal the severity of the problem at various stages. In certain cases, the appearance of smoke is accompanied by:

difficult launch of a cold engine;
unstable operation of the motor at idle and under load;
tachometer speed can float;
there is an increased fuel consumption and engine oil;
the engine loses power, etc.

There are also situations when the smoke of a cold or hot engine is the only sign of the malfunction of the power unit.

Read in this article

Causes of motor smoking

The list of major faults that cause increased smoke formation is distinguished:

problems with the fuel feed system;
wear of the cylindrophneum group;
maginking mechanism of gas distribution;
failures in the engine cooling system;

The appearance of smoke can be caused by the defective combustion of the fuel mixture, the failures in the combustion process, the coolant hit from the cooling system or from the lubrication system into the combustion chamber. These faults are capable of painting exhaust gases into a specific color.

Additionally, it is worth considering that the problems of one system can lead to incorrect operation of other nodes and elements.

As an example, you can consider the inefficient operation of the engine cooling system. Insufficient cooling leads to the overheating of the engine and the destruction of the piston rings. Problems with rings mean that the oil begins to fall into cylinders and the engine smokes.

Motor smoke white smoke

White smoke in warm-up mode is often the usual steam, which is condensed in the exhaust system. Couple will be visible until the exhaust is heated. Also on the end of the pipe you can see water drops. If the outdoor temperature is low, then the pair will be visible even after warming up the motor and its output to the operating temperature. The humidity of the air has an additional influence on the thickness of such a smoke. If the humidity is high, then the smoke will be more.

The appearance of a thick cloud of white smoke in the warm season after heating in KBS often indicates that the cylinders fall into. A frequent cause of sudden smoke White steam is the preceding engine overheating. Water is a component that is present in the coolant. It turns out, part of the water does not have time to evaporate in the combustion chamber. The falling coolant can occur as a result of the destruction of the gasket or cracks in the passage of the cooling shirt channels along which the coolant is moving.

White smoke is a ferry that is easily scattered in the air. To check for the exhaust pipe, you can apply a sheet of pure paper. Water will gradually dry on a sheet, not leaving distinct fatty spots.

The next step in the diagnosis will be the check of the cooling system to enter exhaust gases. To do this, it is enough to unscrew the radiator tube or the lid of the expansion tank on the muted motor. If the smell of exhaust is felt, in the fluid itself there is a film of oil and the fluid level is reduced, then the malfunction is obvious. The engine launch in this case will lead to a significant increase in pressure and an increase in the level of coolant in the tank. Also in the tank you can observe gas bubbles and even drilling.

The subsequent stop of the engine will lead to the fact that the level decreases and the coolant will partially go into the cylinder. From the cylinder, the liquid seeps through the piston rings, it turns out in the pallet of the crankcase, mixing with lubrication and dilution motor oil. It turns out a peculiar emulsion, the color of oil changes and lubricate is purre.

The hub in the lubrication system is diagnosed by analyzing the cylinder cap and the oil-tape plug. A light foam appears on the inside of the lid, which has a yellowish tint. Also, the availability of emulsion in oil can be seen on oil probe.

A large amount of coolant in the lubrication system will indicate a serious crack or squeak. In some cases, the liquid can accumulate in the epipment space, which makes it difficult to start the engine. Separately, it is worth adding that with such a situation there is also a high risk of hydroedar. With minor refrigeration leaks, the emulsion on the lid may be present, and there will be no other signs immediately.

Diagnosis of malfunction

More accurately identify the problem cylinder in the following ways:

Unscrew the candles and check their condition. The coolant has the "flush" the candle in a faulty cylinder.
Stop crankshaft so that the intake and exhaust valve are closed. Next, you need to apply compressed air through the candle hole, then look into the expansion tank. Raising the level of coolant as a result of air supply directly indicates a faulty cylinder.
Remove the GBC to check the gasket and the adjacent surface of the head. If defects have not been identified, then the tightness of the pressure head is carried out;
Diagnose the cylinder. For this, the piston needs to be omitted in NMT and check the walls for cracks;
Check the intake manifold gasket. This is done if there is such a gasket in a particular engine to constructively serve to compact the circulation channels of the coolant.

The engine smokes in blue smoke

The engine begins to smoke in blue or the SIZY smoke if the excess amount of engine oil penetrates into the cylinders. Such smoke can be blue, blue or to have similar shades. Oil smoke engine is more dense. If you bring paper to the exhaust pipe, it will remain fatty spots.

The first feature that will indicate the cause of smoke, is a significant overrun of oil (from 0.5 liters of oil per 1 thousand km. Mileage). In some cases, it is difficult to identify the problem only in color exhaust. Diagnosis makes it difficult for the presence of a catalyst that purifies exhaust gases.

Determining breakdown

The oil penetrates into the combustion chamber both through the piston rings and through the looseness between the valve rod and its guide sleeve. In the first case, there is a wear. The list of possible problems are:

compression and oil surcharge rings are worn;
development of grooves rings in the piston itself;
changing the shape of the walls of the cylinder, wear of the walls;
the presence of jackets on the walls of the cylinders;

The wear of the elements of the CPG often coincides with the fact that compression is reduced in the engine. Also possible growth of crankcase gases. It is necessary to add that in the case of a minor wear of parts, the engine will smoke in a blue smoke only on the "cold". With the heating of the motor and the temperature expansion of the details of the gaps between the parts in the cylinder can come to the relative norm. As a result, the engine smoke is less noticeable or the smoke completely disappears. If the wear of the CPG is significant, then with warming the engine will become stronger, since the heated oil is diluted and actively falls into the combustion chamber. Temperature expansion of parts with strong wear can no longer compensate for increased gaps.

The appearance of black smoke indicates that the engine operates on a too enriched fuel mixture. Smoke color can be from dark gray to black. Such a shade of the exhaust give particles of soot, which appear due to violations of the combustion efficiency of fuel. If the engine smokes with black exhaust, then a problem with the fuel supply system is likely.

Such a malfunction has a number of direct and indirect signs:

massed DVS launch;
increased fuel consumption;
loss of power;
failure of the catalyst, etc.;

Possible reasons

The use of anti-wear, copyright and other additives to reduce oil consumption. Pros and cons after applying the additives into the engine.

Blue exhaust of diesel engine, malfunction and causes of the appearance of a naizo diesel exhaust. Wear a cylindrophone group, compression, diesel fuel.

Periodically, any engine (even new) smokes, so every car owner is early, or later asks for itself - "Why does the engine smoke?".

In the motorist environment, there is an opinion that in color of smoke from the exhaust pipe can be determined which engine malfunction is caused. We first consider this question in general terms, and then we will analyze every specific case in more detail and make this visual malfunction to specify us for more serious impacts. Hidden from eyes, i.e. By color exhaust, we define the condition of the car's engine. In general, the question is why the car smokes can be answered like this:

1) White / transparent smoke from the exhaust pipe - water from the muffler

During the operation of the immense engine or when working in the cold season - this is normal. When oxidizing any carbon fuel, Ideally obtains CO2 and H2O. If CO2 - comes out of the engine in the form of a transparent gas, then the H2O goes in the form of a superheated steam and it turns into a liquid state as cool. It is exactly the condensed pairs of water that we observe in the form of a smoke from the exhaust pipe. In the fact that the waters are always present in the exhaust (even when they are transparent and we do not see them) are pretty easy to make sure about the simple experience: cool the saucepan (or any other dishes) and Submold under the exhaust pipe of the operating engine.

And you can observe how pairs from exhaust gases will be condensed on the cold walls. At the beginning of the engine, while he and exhaust system Do not warm even you can observe how it drips from the muffler. In this case, the release of cold dishes is played by the release system itself.

It should be noted that the water pairs after exiting the exhaust pipe is quite quickly dissipated and nothing smells.

2) black smoke from the exhaust pipe

A similar thing is that the old wagons running out of their subsoils (I think this picture is familiar to everyone) is the brainchild of Say. Aimnually such a smoke coming out of the silencers of a tractor, you can get out in the photo in the header of the page. In the passenger cars, black smoke from The exhaust pipe is manifested mainly with a sharp load set, or when driving with high load. Even in logic, it is possible to determine that the reason for it is bad mixing formation (re-offered by the fuel mixture). Like any deviation in the mixing formation, this leads to the overruns of fuel. Well, it is necessary to repair accordingly the fuel equipment or the engine control system.

Here you can draw an analogy with two-stroke motorcycles - everyone saw what happens when a motorcyclist adds an excess amount of oil into fuel (who did not see the motorcycle can remember a chainsaw, or another machine with a two-stroke engine), the exhaust in this case smells the burner oil. The dense clubs of a bluish engine smoke flying out of the exhaust pipe, and quite a long time scattering. The same in the car, whose cylinders for some reason gets surplus oil. Of course, the thickness and the amount of smoke strongly depends on the mode of operation of the engine, and so on the degree of heating, downtime and other factors.

The degree of duplication of this smoke should be noted satisfied with the weak, it looks like ordinary parks, but the smell of oil and traces on white paper (+ oil consumption) must help you orient.

In this case, it is necessary to watch the engine itself.

4) white smoke from the exhaust pipe - water from the muffler

The case is similar to that described in the first paragraph, but more thick and not disappearing completely when driving the engine in the warm season.

If you consider the essence of this problem in more detail, it turns out that real life Not everything is so unequivocal. Typically, the engine malfunction is complex and, even more so frivolously stimulate the repair. Based on the color of smoke from the exhaust pipe without checking your assumptions additional methods.

For a fairly accurate diagnosis of the engine status will have to roll the sleeves and carry out more complex diagnosis.

1) Transparent steam.

Explanation and repair does not require, it is worth noting - be careful when put the car in the winter on the auto-winding at a temperature - it can just score an exhaust pipe and the car will not start.

As a rule, the salaries appears either in the cold season, or in wet weather. Dynamics Next: When you start the engine, you can easily have a noticeable walker, as it warked, the passage is enhanced. When moving the car with an immentrated engine from the exhaust pipe can drip fluid droplets. As a rule, the walker either completely disappears, or decreases. It should be borne in mind that not only the engine operating temperature is important, but also the temperature of the entire outlet system.

2) black smoke from exhaust

as a rule, the cause of lack of air (or oversupply of fuel). Accordingly, solutions to the problem based on this:

The most shameful case is scored air filter (Especially detrimental for carburetor, gas and diesel engines).

Next, it is necessary to see the compression - with the "holey" cylinders, the combustion process deviates from the calculated and does not bring due results (the required power), as a result of which the ECU may re-secrete the mixture, without looking at its complete service.

We look at the fuel pressure and fuel correction - the situation is possible when the contaminated fuel system and the fuel pressure is small that leads to a long and non-timely fuel injection into the cylinders. Or it is possible when the nozzles are not closed completely and "pour" that leads to a very poor fuel consumption, a reduction in power and sometimes even to the hydrowood (the fuel accumulated in the collector it takes into a cylinder and drives a breakdown).

You can also give erroneous readings of the engine control sensors, the result of which is the work of the "blind" ECU. As a rule, in this case, the "Check Engine" light lights up ( check Engine). However, this light bulb does not always light up in some models if there is a malfunction of any engine. You can read more about the engine management systems here.

All described cases are accompanied by the formation of black nagar on the ignition candles, increased fuel consumption, decrease in the engine characteristics, increased wear of the CPG (gasoline is washes off the oil film from cylinders), the shots in the muffler and is often present in the smell of gasoline from the smoke from the exhaust pipe.

Help Diagnose malfunction can spark plugs. With black smoke from the exhaust pipe, as a rule, the candles have a saber black flare.

That is, when analyzing smoke from the exhaust pipe, it is advisable to analyze and the condition of the candles.

In any case, it is not only no eco-friendly ride, but also expensive to take action.

3) Bully smoke from the exhaust pipe.

The most typical situation with which I met on the part of my cars is smoke clubs in the first 10-30 seconds after the engine factory. The defect progresses with an increase in the run and with a decrease in temperature on the street. You start the engine and in the rear view mirror, see the cloud of a blue oil smoke. You, of course, are strained, bad thoughts come to mind about expensive repair. But upon completion of the path, everything becomes normal. Of course, the repair is postponed.

As already written earlier - the reason for a large amount of oil that has fallen into the cylinders or the graduation path. In our case, the oil falls into the cylinders during the parking lot through loose (releasing) oil-changing caps. At this point, you will most likely have small difficulties with a start-up engine due to oil sediments on candle electrodes.

But the blue smoke can manifest itself not only after the cold start of the engine, but also when driving. And it happens that smoke appears at the time of ride riding (when the throttle is closed) or under load, etc. If smoke appears when driving a roller reason, there will be a CPG: at this moment a vacuum is formed in the cylinders and through a loose pair of friction piston ring cylinder oil fog from the crankcase is absorbed into a hot cylinder

The most typical causes of blue smoke are described below:

a) Worn or revealed oil-changing caps.

The fault gradually increasing and manifests itself in the form of a large emission of smoke at the first moment after the factory, then the gradually the intensity of the smoke decreases (as heated). This is connected with the softening of the caps as heated. The accelerated wear of the caps can be an increased gap in the sleeves of valves, low quality caps or a large amount of crankcase gases (due to the wear of the CPG).

The quality of the oil-circulation caps themselves is of great importance. Unfortunately, I encountered himself secretly:

In this case, the oil will fall through a leakage of the clan with the saddle (MSK seals). And it will fall as in the inlet (if at the time of the parking lot is closed) and in the cylinder (if the valve is open) or even in the exhaust collector through the exhaust valve sleeves. Abundant smoking in the first moments will be caused by the combustion of everything glass in the cylinder of oil from the block head for the time of idle and low elasticity of cold rubber oil caps.

b) wear or location of the oilmaging rings.

In this case, the oil film is not removed specifically designed for this rings and oil in excessive volume enters the cylinders. Perhaps this is the reason for which the engine can eat the greatest amount of oil. At the first stage, the rings rings can help. But after that, it is necessary to increase attention to the engine, because This may mean loss of rings of spring properties and a quick re-location. The method of checking the piston rings is described on the system for measuring the compression in the engine, so I will not repeat.

I will add only that the diagnosis is hampered by only the oil lining (lower) rings, because compression with the nominal, and the rounding does not help because good condition Upper rings. Similar option in the photo below:

c) turbine malfunction.

Cars equipped with turbochargers with a deplorable state of the latter can smoke due to the cast of turbine oil. In this case, the oil runs on the lubricant of the turbine bearings, through faulty seals (as a rule, the coating of the turbine shaft) is thrown into the intake path:

It is quite easy to propagate. It is enough to remove the air duct running from the turbine to the engine at the bottom point and look no inside the oil. Either (in the early stages) in the nozzle before the throttle stretches the white light fabric, then the nozzle is put. After that, we proceed and remove our fabric. Traces of oil will talk about the emerging turbine malfunction.

d) clogging of crankcase gas recycling system.

Automotive engines are built in such a way that a small discharge must be maintained inside the engine. This discharge is created either by vacuum in the throttle area or special vacuum pumps (much less often). In any case, the dumped crankcase gases are reset in the intake manifold. But there is no pure gases in the crankcase, and there is an oil fog. Because of what these gases before resetting the intake manifold from separating. This is exactly what the crankcase gas recirculation system is engaged. When it is out of order, the crankcase gases threw the oil droplets into the inlet, which is why the engine can also smoke with a characteristic "oil" smoke.

e) Wear CPG (cylindro-piston group).

A special case of paragraph "G" is the wear of the cylinder-piston group (or running rings including compression). If the oil-giving rings did not lay down, but simply there is an increased wear in friction pairs.

This will fall out with an increased amount of exhaust gases falling into the Carter. Those. The amount of gas passing through the recirculation system will significantly exceed the calculated one. Of course, there will be a slip of the oil droplets into the inlet and the result will be the same as in paragraph "G". The malfunction can be revealed by opening the oil-tank neck on the engine running. With good CPG and the crankcase gas recirculation system, the air will be superseden in the neck (you can check the paper sheet), or slightly leave it. If crankcase gases are knocked out of the neck with a tangible force - it is worth thinking about serious repairs. It is also worth paying attention to the color of gases from the oil refinery - ideally they are colorless. Check your assumptions about the wear of the CPG can be measured by compression. First, you measure the compression, then pour some oil into a suspicious cylinder and re-froze. Details described

e) bad oil.

Do not discount and bad oil. Moreover, several options are possible. Firstly - you could simply buy counterfeit. In this case, the properties of oil alone .... are known. And how this oil will be separated in the crankcase recycling system and how it will resist high temperatures in the cylinder is not known:

Secondly - you could just overlay the oil. The fact is that the engine oil is exceeded by the permissible temperature loses its properties. The athletes know about it and put the engine oil temperature sensors, the additional coolers for oil, etc. In the usual car there is nothing. Yes, and the car itself is not designed for extreme loads. And the pistons from the bottom are cooled just with engine oil! In the usual life of the stock is quite enough. But imagine the hot summer day. You gathered on vacation: loaded the family, things (i.e. by weight full load), you have to protect the engine (interfering with normal cooling oil in the crankcase) - where in Russia without it. Plus, on the way caught a protracted rise and ... Voila oil overheated. We must change without questions.

g) a generic spot of many 16 valve engines are deep candlestones.

In these wells, several junctions of conjugate details. One by oil, the other by air. The result of a certain coincidence of the circumstances will be the ingress of the butter from the well to the engine absorption:

Well, the engine smoke as the end result. Check it is not difficult - remove the candle tips and if they are in the oil means the laying of the candle pads you can no longer cope with official duties. If this is not addressed to this intake manifold, the described situation is above.

h) original.

In addition to the described malfunctions of the radiation of the engine, there are a number of rather exotic and even curiosities. For example: engine smoke (oil smoke) can be caused by a microcrack in the engine (defined quite difficult) by which the oil falls into the inlet or directly into the cylinder or flow oil and enter it to the elements of the exhaust system.

Curious can be attributed to cases when the car owner accidentally pours to the fuel tank two-stroke engines (stirred with oil) and then in a panic looking for the cause of the engine smoke.

4) Engine smoke Couple clubs.

Here the reason is definite enough - water gets into the cylinders. The location of its dislocation is definitely - the engine cooling system. It means to determine it is quite simple to reduce the level of antifreeze. In addition, for a more accurate diagnosis, you need to explore the candles. In the cylinder, where the water candles are present will be raised from scale on the electrode, it is quite simple to notice it. Try to clean such a candle with supfil and you can see a low-rise falling on the kitchen kettle.

In this case, the main reasons for two - struck the gasket of the head of the block, or the microcrack in the cylinder. Again, the reason is to either incorrect assembly, or not high-quality spare parts, or overheating of the engine (there is of course others, but these are basic). In any case, the repair does not tolerate deposits.

Sometimes the cause of the injection of the liquid into the cylinders may be the corrosion of the engine from the inside (through!). Here is such a picture I had a misfortune to see one of my cars:

With a bad coincidence, the coolant can be hit not only in the cylinders, but also in the oil! It is easy to determine the inspection of the oil level probe.

Emulsion You will not confuse with anything. It's not worth pulling here. In this case, before repair, I would advise rinse the engine from the inside of the diesel . This will help save time and nerves when repairing, in addition to this in a clean engine it will be easier to find a fault location.

Good luck to you and all the best.

Keywords: the engine smokes, why smokes the engine, smokes the engine with black smoke, smokes the engine with white smoke, smokes the engine with a SIZY smoke, water from the exhaust, smoke the machine.

After several hours of downtime of the car and the subsequent start of the engine in some cases, it is possible to notice the appearance of thick smoke from the exhaust system. Such smoke can be white, nizy or black. Smoking can both disappear and be present after further warming up. It should be noted that if the engine smokes after warming up, then it indicates a certain fault.

difficult launch of a cold engine;
unstable operation of the motor at idle and under load;
tachometer speed can float;
there is an increased fuel consumption and engine oil;
the engine loses power, etc.

There are also situations when the smoke of a cold or hot engine is the only sign of the malfunction of the power unit.

Causes of motor smoking

The list of major faults that cause increased smoke formation is distinguished:

problems with the fuel feed system;
wear of the cylindrophneum group;
maginking mechanism of gas distribution;
failures in the engine cooling system;

The appearance of smoke can be caused by the defective combustion of the fuel and air mixture, failures in the combustion process, the coolant hit from the cooling system or engine oil from the lubrication system into the combustion chamber. These faults are capable of painting exhaust gases into a specific color.

Additionally, it is worth considering that the problems of one system can lead to incorrect operation of other nodes and elements.

Motor smoke white smoke

The appearance of a thick cloud of white smoke in the warm season after warming up the engine is often indicated that the cylinders fall into the cylinders. A frequent cause of sudden smoke White steam is the preceding engine overheating. Water is a component that is present in the coolant. It turns out, part of the water does not have time to evaporate in the combustion chamber. Coasting can occur as a result of destruction gBC pads Or cracks in the places of the Cooling Shirt Channels along which the coolant moves.

White smoke is a ferry that is easily scattered in the air. To check for the exhaust pipe, you can apply a sheet of pure paper. Water will gradually dry on a sheet, not leaving distinct fatty spots.

The subsequent stop of the engine will lead to the fact that the level decreases and the coolant will partially go into the cylinder. From the cylinder, the liquid seeps through the piston rings, it turns out in the pallet of the crankcase, mixing with lubrication and the dilution of the engine oil. It turns out a peculiar emulsion, the color of oil changes and lubricate is purre.

The hub in the lubrication system is diagnosed by analyzing the cylinder cap and the oil-tape plug. A light foam appears on the inside of the lid, which has a yellowish tint. Also, the presence of an emulsion in oil can be seen on the oil probe.

Diagnosis of malfunction

More accurately identify the problem cylinder in the following ways:

Unscrew the candles and check their condition. The coolant has the "flush" the candle in a faulty cylinder.
Stop crankshaft so that the intake and exhaust valve are closed. Next, you need to apply compressed air through the candle hole, then look into the expansion tank. Raising the level of coolant as a result of air supply directly indicates a faulty cylinder.
Remove the GBC to check the gasket and the adjacent surface of the head. If defects have not been identified, then the tightness of the pressure head is carried out;
Diagnose the cylinder. For this, the piston needs to be omitted in NMT and check the walls for cracks;
Check the intake manifold gasket. This is done if there is such a gasket in a particular engine to constructively serve to compact the circulation channels of the coolant.

The engine smokes in blue smoke

Determining breakdown

The oil penetrates into the combustion chamber both through the piston rings and through the looseness between the valve rod and its guide sleeve. In the first case, the deposit of the CPG. The list of possible problems are:

compression and oil surcharge rings are worn;
development of grooves rings in the piston itself;
changing the shape of the walls of the cylinder, wear of the walls;
the presence of jackets on the walls of the cylinders;

On machines with a turbocharger, blue smoke can separately indicate problems with the turbine. The most often turbocked engine smokes due to the fact that bearings and seals of the turbine rotor are worn. In such cases, oil through the turbocharger enters the exhaust system and pulls, forming an oil smoke.

As for the TRM, the oil smoke is often associated with the wear of the rod of the valve, guide bushings and problems with oil-challenge caps. The engine can also smoke in blue exhaust if Ignition problems arose. To check, you can unscrew the spark plug on the problem cylinder. The presence of abundant black in black will indicate a problem.

A fairly rare cause of the smoke of the blue exhaust may be a break of a special membrane of a regulator on the automatic transmission that have a vacuum load sensor. A feature of the design is the connection of such a box with an intake manifold using a special nozzle. In the event of a malfunction, the engine is simply pulling liquid transmission oil from automatic transmission.

Black Smoke Exhaust Pipe

Such a malfunction has a number of direct and indirect signs:

massed DVS launch;
increased fuel consumption;
loss of power;
failure of the catalyst, etc.;

Possible reasons

Motors with carburetor injection can smoke black smoke as a result of the fact that there is overflow in the float chamber. In this case, on the carburetor, it is necessary to clean the jackets that are responsible for air supply, as well as check the needle valve.

In injection engines, the re-enclosure of the mixture may occur due to failures in the operation of electronic sensors. Another nuance is the possible loss of tightness of the injection injectors themselves. If the nozzles are transfused, then the result becomes an excess of fuel, which enters the combustion chamber. The superior fuel is blends lubricants from the walls of the cylinders, and also falls into the engine crankcase.

One of the signs of fuel from entering the oil is a steady smell of gasoline. In some cases, it is observed an increase in the oil level in the engine, since the lubricant is largely diluted with flammable.

Krutimotor.ru.

Why smoke car engine

If the heated engine smokes, it means that the power unit has specific faults. The color of exhaust gases indicates the stage of development of the breakdown and its seriousness.

Brief description of the symptoms accompanying the yield of smoke

In some cases, the smoke may be accompanied by the following symptoms:

difficulty when starting a cold motor;
unstable operation of a motor both at idle and under loads;
inconstancy of tachometer testimony (float turns);
increase fuel consumption and machine oil;
power loss of power unit.

There are often situations in which the engine smoke is the only alarm signal.

The device of the car is designed for permanent unauthorized selection by the system exhausting the atmosphere of exhaust gases in the specified volumes. But if when you start the motor from the exhaust pipe, it goes smoke in large quantities, it is necessary to urgently look for the cause of the alarm symptom.

The first thing to pay attention to is the color, shades and density of smoke emanating from the engine. The most common are the following colors of released gases:

White.
The black.
Blue-gray.

Each of the listed colors of smoke can have different shades, but it is precisely this separation into groups is the main one.

Causes of Engine Smoking

Why smoke the engine, this is often interested in car owners. Main faults causing a strengthened exhaust pipe output:

damage arising in the fuel supply system;
wear of parts included in the cylindrophone group;
disorders in the work of the gas distribution mechanism;
problems in the cooling system.

Each of the described reasons can affect the shade of the emissions of the cloud of smoke.

After the capitals, as a rule, the smoking of the motor stops.

Transparent smoke from the exhaust pipe

The output of black smoke

malfunctions of the engine control system;
disorder adjustments in fuel equipment;
reducing the compression of the engine cylinders.

Appearance of white smoke

Smoking engine white gas does not always produce harmless water vapor. White smoke is distinguished from the pair of the following signs:

increased smoke density;
long-term dispersion;
the presence of a steady smell of gary;
does not disappear when heating the engine.

Incorrect operation of the elements of the cooling system can lead to serious disorders in the functioning of the power unit as a whole.

Causes of white smoke:

cracks in the head of the cylinder block (GBC);

getting cooling fluid into the cavity of the engine cylinder;
motor overheating;
using low quality coolant.

What you need to do when the white dense smoke is detected

Smoke with bluish (SIZ) tint

If a diesel or gasoline engine smokes highly smoke with a siza gas, then this means that the machine oil seeps into one or more cylinders. When combustion, thick clubs of smoke are formed, which have a stable smell of burned oil and do not dissipate for a long time.

Description of the reasons for the appearance of white smoke with a blue tint

Why smoke the engine with white gas with a SIZY or blue tint? In the study of the origin of the SIZO or blue exhaust, the following reasons are most common:

Damage to oil-challenge caps.
Local rings intended for removing oil residues from the walls of cylinders.
Fault turbocompressor.
The oil used is low quality.

Turbocompressor and causes of the appearance of a sizogo smoke

In the process of combustion of the turbocharger oil, a thick gray smoke is formed that affects the irreparable harm of the atmosphere.

To diagnose the turbine, it is necessary to make the following actions:

Disconnect the turbine from the engine.
Check the availability of oil savings inside the air duct.

The accumulation of a large amount of oil in the air duct and turbine is a serious defect. When a similar situation is detected, it is necessary to immediately seek qualified help to the service center.

The effect of the quality of the oil used on the smoke formation

Engine oil must have certain characteristics. The quality of the lubricant used directly depends on its properties. If low-quality oil is located in the car, the viscosity coefficient of which does not correspond to the car brand or when the temperature is raised inside the engine, there is a sharp loss of beneficial properties, this leads to serious breakdowns of elements and power units. When a sizogo smoke appears, it is necessary to check the oil for compliance and, if necessary, make it a complete replacement.

Avtodvigateli.com.

Why smoke Machine / Engine (causes and malfunctioning methods)

Everyone who knows how to reason technically car owner early, or later asks itself a question - "Why does the engine smoke?". In the environment, motorists there is an opinion that in the color of smoke from the exhaust pipe, you can determine which engine malfunction is caused. Undoubtedly, when the car smokes about its owner makes an unfavorable opinion. Consider first this question in general terms, and then we will analyze every specific case in more detail. In general terms, the question is why the car smokes can be answered as follows: 1) transparent pairs (white) from the exhaust pipe during the operation of an immense engine or when working in the cold season is normal. When oxidizing any carbon fuel, Ideally obtains CO2 and H2O. If CO2 - comes out of the engine in the form of a transparent gas, then the H2O goes in the form of a superheated steam and it turns into a liquid state as cool. It is the condensed pairs of water that we observe the smoke from the exhaust pipe.

In the fact that the water pairs are present in the exhaust always (even when they are transparent and we do not see them) are pretty easy to make sure about the simple experience: cool the saucepan (or any other dishes) and substitute the operating engine under the exhaust pipe.

And you can observe how pairs from exhaust gases will be condensed on the cold walls. At the beginning of the engine, while it and the exhaust system did not warmly, it can even be observed as dripping from the muffler. In this case, the release of cold dishes is played by the release system itself.

It should be noted that the water pairs after exiting the exhaust pipe is quite quickly dissipated and nothing smells. 2) Black smoke from the exhaust pipe is a similar to what the old wagons running out of their subsurfaces (I think this picture is familiar to everyone) is the brainchild of soot. It is such a smoke coming out of the silencers of a tractor, you can make it in the photo in the header of the page in passenger cars. Black smoke from the exhaust pipe is manifested mainly with a sharp load set, or when driving with high load. Even in logic, it is possible to determine that the reason for it is bad mixing formation (re-offered by the fuel mixture). Like any deviation in the mixing formation, this leads to the overruns of fuel. Well, it is necessary to repair accordingly the fuel equipment or the engine control system. 3) Bully smoke from the exhaust pipe. Here you can draw an analogy with two-stroke motorcycles - everyone saw what happens when a motorcyclist adds an excess amount of oil into fuel (who did not see the motorcycle can remember a chainsaw, or another machine with a two-stroke engine), the exhaust in this case smells the burner oil. The dense clubs of a bluish engine smoke flying out of the exhaust pipe, and quite a long time scattering. The same in the car, whose cylinders for some reason gets surplus oil. Of course, the thickness and the amount of smoke strongly depends on the mode of operation of the engine, and so on the degree of heating, downtime and other factors. The degree of puzzleness of this smoke should be noted satisfied with the weak, it looks like ordinary parks, but the smell, traces on white paper and oil consumption should help you navigate. In this case, it is necessary to watch the engine itself. 4) White smoke similar to the described occasion in the first paragraph, but more thick and not completely disappearing when heating the engine in the warm season.

In addition to oil, cooling fluid can also fall into the engine cylinders. It is she, condensing, turns into a white couple, which is relatively quickly dissipated in the air. But there is a small but: various properties and structure of the fluid are used as a coolant liquid. For this reason, couples may differ from pure white and thus mislead the owner. For greater confidence, you need to pay attention to the consumption of coolant liquid. Repair is subject to "iron" engine and cooling system. If you consider the essence of this problem in more detail, it turns out that in real life is not so unambiguous. Usually, the engine malfunction is comprehensive and the more difficult to rise in the repair. Based on the color of smoke from the exhaust pipe without checking their assumptions with additional methods. For a fairly accurate diagnosis of the state of the engine, the sleeves will have to roll and carry out a more complex diagnosis: 1) transparent steam. Explanation and repair does not require, it is worth noting - be careful when put the car in the winter on the auto-winding at a temperature - it can just score an exhaust pipe and the car will not start. As a rule, the salaries appears either in the cold season, or in wet weather. Dynamics Next: When you start the engine, you can easily have a noticeable walker, as it warked, the passage is enhanced. When moving the car with an immentrated engine from the exhaust pipe can drip fluid droplets. As a rule, the walker either completely disappears, or decreases. It should be borne in mind that not only the engine operating temperature is important, but also the temperature of the entire outlet system. 2) Black smoke from the exhaust, as a rule, is the cause of the lack of air (or oversupply of fuel). Accordingly, solutions to the problem based on this: the most shameful case - the air filter is clogged (especially pernicious for carburetor, gas and diesel engines). Next, it is necessary to see the compression - with the "holey" cylinders, the combustion process deviates from the calculated and does not bring due results (the required power), as a result of which the ECU may re-secrete the mixture, without looking at its complete service. We look at the fuel pressure and fuel correction - the situation is possible when the contaminated fuel system and the fuel pressure is small that leads to a long and non-timely fuel injection into the cylinders. Or it is possible when the nozzles are not closed completely and "pour" that leads to a very poor fuel consumption, a reduction in power and sometimes even to the hydrowood (the fuel accumulated in the collector it takes into a cylinder and drives a breakdown). You can also give erroneous readings of the engine control sensors, the result of which is the work of the "blind" ECU. As a rule, in this case light bulb "Check Engine" lights up. However, this light bulb does not always light up in some models if there is a malfunction of any engine. You can read more about the engine management systems here. All described cases are accompanied by the formation of black nagar on the ignition candles, increased fuel consumption, decrease in the engine characteristics, increased wear of the CPG (gasoline is washes off the oil film from cylinders), the shots in the muffler and is often present in the smell of gasoline from the smoke from the exhaust pipe. Help Diagnose malfunction can spark plugs. With black smoke from the exhaust pipe, as a rule, the candles have a saber black flare. That is, when analyzing smoke from the exhaust pipe, it is advisable to analyze and the condition of the candles. In any case, it is not only no eco-friendly ride, but also expensive to take action. 3) Bully smoke from the exhaust pipe. As already written earlier, the reason for the large number of oil fell into the cylinder or exhaust tract. The reasons may be as follows: a) worn or concerned oil caps. The fault gradually increasing and manifests itself in the form of a large emission of smoke at the first moment after the factory, then the gradually the intensity of the smoke decreases (as heated). This is connected with the softening of the caps as heated. The accelerated wear of the caps can be an increased gap in the sleeves of valves, low quality caps or a large amount of crankcase gases (due to the wear of the CPG). The quality of the oil-circulation caps themselves is of great importance. Unfortunately, I encountered himself secretly:

In the photo, two different cap workers in the same conditions. And if the left cap has already been crying (the car, at Tom, skidlessly smoked and eaten near the liter of oil on 1000km), then the right looks like a new one after 50 thousand. Work. The name of the good is Roadsafe, and the name is bad - incognito, because Most likely he counterfeit and throw the shadow on the Mitsubishi brand does not want. b) wear or location of the oilmaging rings. In this case, the oil film is not removed specifically designed for this rings and oil in excessive volume enters the cylinders. Perhaps this is the reason for which the engine can eat the greatest amount of oil. At the first stage, the rings rings can help. But after that, it is necessary to increase attention to the engine, because This may mean loss of rings of spring properties and a quick re-location. The method of checking the piston rings is described on the system for measuring the compression in the engine, so I will not repeat. I will add only that the diagnosis is hampered by only the oil lining (lower) rings, because The compression at the same time nominal, and the cutoff does not help because of the good state of the upper rings. Similar option in the photo below:

c) turbine malfunction. Cars equipped with turbochargers with a deplorable state of the latter can smoke due to the cast of turbine oil. In this case, the oil runs on the lubricant of the turbine bearings, through faulty seals (as a rule, the coating of the turbine shaft) is thrown into the intake path:

d) clogging of crankcase gas recycling system.

e) wear CPG. A special case of paragraph "G" is the wear of the cylinder-piston group (or running rings including compression). If the oil-giving rings did not lay down, but simply there is an increased wear in friction pairs.

e) bad oil. Do not discharge and bad oil. Moreover, several options are possible. Firstly - you could simply buy counterfeit. In this case, the properties of oil alone .... are known. And how this oil will be separated in the crankcase recycling system and how it will resist high temperatures in the cylinder is not known:

Well, the engine smoke as the end result. Check it is not difficult - remove the candle tips and if they are in oil means the laying of candlestones you do not cope with official duties. If this is not addressed to this intake manifold, the described situation is above. h) original. In addition to the described malfunctions of the radiation of the engine, there are a number of rather exotic and even curiosities. For example: engine smoke (oil smoke) can be caused by a microcrack in the engine (defined quite difficult) by which the oil falls into the inlet or directly into the cylinder or flow oil and enter it to the elements of the exhaust system. Currently attributed cases when the car owner accidentally pours to the fuel tank destined for two-stroke engines (stirred with oil) and then in a panic is looking for the cause of the engine smoke. 4) Engine smoke Couple clubs. Here the reason is definite enough - water gets into the cylinders. The location of its dislocation is definitely - the engine cooling system. It means to determine it is quite simple to reduce the level of antifreeze. In addition, for a more accurate diagnosis, you need to explore the candles. In the cylinder, where the water candles are present will be raised from scale on the electrode, it is quite simple to notice it. Try to clean such a candle with supfil and you can see a low-rise falling on the kitchen kettle. In this case, the main reasons for two - struck the gasket of the head of the block, or the microcrack in the cylinder. Again, the reason is to either incorrect assembly, or not high-quality spare parts, or overheating of the engine (there is of course others, but these are basic). In any case, the repair does not tolerate deposits. Sometimes the cause of the injection of the liquid into the cylinders may be the corrosion of the engine from the inside (through!). Here is such a picture I had a misfortune to see one of my cars:

Not high quality Tosol in the literal sense ate the floor of the unit from the inside. Corrosion products (simply rust) even filled the expansion tank. Outcome - scrap. Restore such a motor is more expensive. With a bad coincidence, the coolant can be hit not only in the cylinders, but also in the oil! It is easy to determine the inspection of the oil level probe. Emulsion You will not confuse with anything. It's not worth pulling here. In this case, before repair, I would advise washing the engine from the inside of the diesel. This will help save time and nerves when repairing, in addition to this in a clean engine it will be easier to find a fault location. Good luck to you and all the best. P.S. After warming, the article will be supplemented with video with various defective exhaust. Keywords: why the engine smokes, smokes the engine with black smoke, smokes the engine with white smoke, smokes the engine with a SIZY smoke, water from the exhaust.

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Die diesel engine Size smoke: Causes

Each car owner may have one very interesting, incomprehensible headache in the form of smoke from the exhaust pipe, and especially the vehicle owners with a diesel unit. It seems to be a car to go, work, but the fact that he smokes will not leave peace to his owner.

The situation is interesting because smoke can be different color: black, white, gray or smoke in blue smoke, the blue smoke is most common. And for a certain reason, there will be a smoke of a certain color.

The reason for black smoke can be not burned to the end of fuel. Smoke of this color occurs when there is an excessive fuel supply or fuel has poor quality. The same effect will cause lack of oxygen. The same causes are involved in the appearance of gray smoke. Smoke turns out a gray shade just because defects are not as serious as those that cause black trail behind the car.

Doms diesel engine Size smoke and reasons for this can be different. With blue smoke exhaust during the operation of the machine on cold Engine Or already warm, then it is worth thinking about malfunctions in a diesel unit. To the emergence of such an effect can be the cause of two problems:

Fuel does not go.
Engine oil enters the engine.

To understand why the diesel engine smokes need to diagnose it without resorting to the help of special devices. You can identify the problem according to the degree of smoke and the smell that she carries in itself.

Not cautious fuel

Confirmation to such a guide will be the presence of a caustic and sharp smell of the exhaust system. This will mean that unburned fuel comes out with smoke in a vapor state.

The fuel may not go for various reasons. It is possible that the fuel is fed too late or some kind of cylinder does not cope with its task and cannot burn diesel.

As a rule, each consequence has causes. Corollary, in this case, not cautious fuel and, as an outcome, Diesel smokes blue. So what causes and malfunctions in the nodes of diesel can be entrusted?

Faulty TNVD

If the reason for the appearance of the SIM smoke was behind the injection, it should be paid to the wear of the high pressure fuel pump (TNVD). It is easy to guess that the fuel will not have time to get to get if it is submitted late.

So, with one of the possible perpetrators decided. But why is it going on? The design and scheme of operation of the TNVD is quite difficult. If you explain simple words, the work of this node is based on the movement of special mechanisms for fuel supply, which are constantly drunk and in contact with each other.

The lubricant for details is the fuel itself. Pretty tricky solution, because the diesel fuel has a fatty structure. But with the arrival of winter, the transition to winter fuel is carried out.

It is called the winter, because the viscosity is reduced in it, namely there are no lubricant fractions or their amounts are not enough to lubricate the "piece of iron" in the pump. This is the reason for the wear of the pump. And the depreciation of this part of the unit, in turn, along with the wave washer profile, the fuel injection is caused.

The mechanism is the following: fuel does not have time to warm up, because it is later served, and the cylinder begins to work badly with jumps. As a result, the fuel that does not have time to burn is produced out in the form of blue smoke.

If the engine is warm up, driving a few kilometers, then the SIZY trail behind the machine will disappear or decrease so much that it cannot be traced. But the pump malfunctions do not fix it. With a warm engine, even late fuel, the fuel has time to breathe almost completely due to a high temperature background.

Bad engine compression

There are cases when the engine starts a strong blue smoke. And then after proper warming, the smoke disappears. Such a picture is often found in the yards of our country, when there are pillars of smoke, and the driver runs, clutching his head, and cannot understand what is happening.

The cause of everything low engine compression. Because of such a defect, the temperature during compression does not reach due value, so the fuel does not extend completely. Even if the engine has one cylinder with low compression, then the operation of such an engine is possible. But it will smoke until the total temperature increases and the defective cylinder will not start cope with the incoming fuel and to adjust it.

The reasons for the smoke of the blue shade can serve as a late injection or a low compression indicator. By the way, most modern diesel engines are equipped with a device on the fuel pump, which makes the early injection when the engine is still cold.

With such a function, the engine is tougher, but the fuel fully time to burn. The engine is heated, and the device returns to the initial state of the fuel injection, the motor begins to "purr" and becomes pleasant and soft on the ear.

Without the cause of oil

With this diagnosis, the "cloud" of the exhaust pipe will be smoking from light to dark shades. It will depend on the concentration of oil, which flows into the combustion chambers, operation modes of the engine and on the warm-up temperature. At the same time, you will feel the corne of the smell of the oil.

The emergence of such gas will be marked by increased use of oil. To solve this problem, you need to decide on the suppliers of "unnecessary" fluid.

Wear with a cylindrophone group

Very often, Diesel smokes with a SIZY smoke due to the wear of the cylindrophone group and the GRM assemblies (gas distribution mechanism). Oil can get into the cylinder for several reasons.

Increased piston rings gaps.
Enlarged gaps between the rods of valves and guide sleeves.
There are damage to the cylinder sleeve.
Destroyed rings.
There are violations of piston grooves and many other reasons.

For example, strong gap defects in the area of \u200b\u200bpiston grooves allow the combustion chamber to "suck" the oil. It is possible even if the oil-circulation rings are good. With a large period of operation, the cylinders are amenable to change their form, for example, to become an elliptical form. Due to changes in the form, the seal deteriorates.

The wear of this group of parts also causes a decrease in compression. When measuring compression it is worth considering the ability of oil to compact the gaps. It turns out that if the cylinder is faulty, then the compression must be overestimated. For the diagnosis of CPG (cylinder-piston group), measurements and obtaining an accurate assessment must be followed by some requirements.

If the mechanisms have not a very big worsening of quality, then the notorious smoke can be seen when the engine is warming up. After warming up, the symptom level decreases or completely disappears. This is explained by the fact that at high temperatures, the details expand and the gaps are compacted.

An increase in the oil consumption occurs when the jumpers between the piston grooves are damaged. Also, the rings of the rings are faced as a result of wear or engine overheating. If you use low-quality oil and change it untimely, then piston rings as it were "stick" and lose their mobility.

The deterioration in the quality of piston rings and cylinder seals will cause increased fuel consumption.

It is possible to identify the fact of the ingress of oils in the characteristic noise in the operation of the engine and the stacks, accompanied by the change of revolutions and the loads on the engine.

Multiple timing and other reasons

The causes of oil smoke can be the following reasons:

Furious or destroyed valves.
Worn valve rods and guide sleeves.
Malfunctions in oil-challenged caps.

Why is the exhaust of blue smoke on a heated engine, it can be said by making a support to the fact that the oil is lost with increasing engine temperature internal combustion. You can give the following example. This can always be observed during the operation of tractors.

It often happens that when the engine works at idle, oil accumulates on the details, forming the film, thereby accumulating in the exhaust system. Then when the tractor driver squeezes the gas pedal, the exhaust pipe splashes the thick blue smoke.

It is possible that the fuel supply system is faulty or there is no tightness of the valves. All this can be the causes of the smoke of a diesel unit in blue. The rotor valve gives the exhaust gases a white-bluish tint. This valve defect can be traced at low compression of a faulty cylinder. Candles are also covered with nagar and sediments, which will indicate this disadvantage.

Turbine malfunctions are possible. They can remind the symptoms of unhealthy oil-challenge caps. In order to make sure that the turbocharger's nozzles can be forgiven for the presence of oils. The problems associated with the turbocharger seal are more difficult to determine, because the oil, falling into the exhaust system, tramples completely.

Also, the causes of the nuclear smoke may be violations in the work of the ventilation of the crankcase or problems with flammings in the cylinder. Very often, the blue smoke is accompanied by a decrease in thrust, and atmospheric and turbo diesel can have leaks, etc.

It is worth noting that the causes of such a car behavior may be poor fuel quality. Therefore, it is possible to refuel only from those companies that provide good quality fluids. To beware of those refueling that offer diesel fuel at a low price.

Avtodvigateli.com.

The presence of a car has a huge number of a wide variety of advantages - you can safely get to work or study, without spending a huge amount of time, you can travel to any point of sushi, does not depend on buses, airplanes and other vehicles. You can always get there where you want, be it shop, cottage or hike in the forest. However, it is necessary to understand that the car is not only a solid pleasure. As for the pet, which brings a lot of joy, you need to care for the car - and it can have its own problems, faults and breakdowns. Naturally, at the first little things, you can always turn the car to the maintenance station, but most motorists refuse to do it. Someone does not want to spend extra money, and someone just thinks he must cope with all the problems own car Alone. It is for such people and this article is written in which it is painted in detail why your car smokes the engine. This problem is very common - the exhaust pipe constantly sends exhaust to the atmosphere, but this happens in small quantities and unnoticed. But if you start the engine, and from the exhaust pipe shall smoke - it means that the trouble came. What if you smoke the engine? First of all, you need to determine what is the problem. And it is possible to do this in the color of smoke.

Smoke color

So, if you have the engine smoke, then you need to either carry the car to repair, or understand yourself. And the first step will be the definition of a color of smoke emanating from the motor. Most often, it can be white, black and siz - naturally, each of these colors can be shades, but if you divide the smoke from the engine to the main groups, then they will be such. Sometimes sometimes from the pipe can go literally transparent smoke, and this can also point to some faults, although most often there is nothing wrong with this situation. However, each of the colors of smoke will be described in more detail. You will learn that it is not so with your machine depending on how specifically the engine smokes, and you can also deal with what you should do if you have any problem.

Transparent Smoke

Many drivers are asked about why the diesel engine smokes. They are interested in why from the gasoline engine can throw smoke clubs. All these problems cause a novice car enthusiast to real panic, but if smoke does not go directly from your engine, which is burning in your eyes - there is no reason for it. Any malfunction can be determined and then fixed. And for a start it is worth looking at the most innocent moment - when you have a transparent or whisper smoke, which is practically not visible. In fact, it is not even smoke, but a couple, which is formed in the unleashed system. Most often this can be seen in winter timeWhen the engine is starting after night inaction. It is constantly heated, and with it heats up the exhaust system, from which steam goes. You can make sure that it is in the order of things, putting at any other time to the exhaust pipe of any vessel - condensate will be formed on its walls. The problem is just that the couple goes in winter in large quantities, and when water begins to drip from the exhaust pipe, many newcomes begin to panic and think that something terrible happened. But actually everything is in order, and you absolutely nothing to worry. As soon as the engine and the entire exhaust system warms up, steam will either completely disappear, or will be reduced to the minimum amount that you will be unnoticed. As you could already understand, this case does not require any repair, but there are other situations when you would like to know why smoke diesel engine or any other engine installed on your car. Indeed, in some cases, smoke may mean a serious problem.

Black smoke

As you could already understand if you smoke the engine, the reasons for this can be the most diverse, and you yourself can install them if you analyze exactly which color in smoke coming out of the exhaust pipe. The case with a transparent smoke has already been considered, and now it's time to move to its full opposite - black smoke. This is a rather frightening spectacle, and it can be seen when on the road, for example, rides a huge wagon. It is often its exhausts to horror black, and that is why such exhausts are the most persecuted in terms of environmental damage. However, what should I do if the black smoke brings from the engine? First of all, the cause can be a spearflow - as in the case of wagons and tractors. But, given the fact that we are talking about light carThis option is unlikely. Therefore, the most plausible is the problem of mixing formation. What does this mean? This means that the mixture that enters the engine has too much content directly the fuel itself - and the result becomes not only unpleasant black smoke, but also excessive fuel consumption. So the problem is most likely lifted somewhere in the fuel equipment or in the engine control system. The first thing you should pay attention is an air filter. If it is scored, the air supply is overlapped, which leads to its lack and, accordingly, to the abrasiveness of the fuel in the final mixture. The next item is compression. You need to explore the cylinders of your engine. If they are damaged, the combustion process will not match the calculated, resulting in a shortage of power and, accordingly, re-enrollment to be mixed with fuel. Well, another common case is the wrong operation of the engine control sensors. As a result of the system, the "blind" operate, because of which faults appear. Most often in this case, you light up a light bulb on the dashboard, noting the need to check the engine, but another failure can happen, and the signal will not arrive - then you will have to check everything yourself. The simplest diagnostic method is to check the spark plugs. If the black smoke from the exhaust pipe is a consequence of the engine malfunction, then on the candlelight you will find a black flare. This will mean that it has come to repair the car - it is also strongly recommended to replace the candles themselves if they are covered with a raid due to the fact that you have the engine smoke. Causes of black smoke Now you have to be clear, so you can move to the analysis of the next color.

White smoke

You have already learned why the engine smokes in the cold season - the transparent pairs of the exhaust pipe appears in the case when the motor and exhaust system did not have time to warm up, resulting in condensate. Now the case will be considered when pairs are also charged from the exhaust pipe, but it is not transparent, it does not dissipate so quickly, as well as the engine heating does not solve the problem that appears. White smoke is a consequence of the cooling system. Depending on what cooling fluid you use, white smoke clubs may have different shades, but the reason will remain the same - the cooling system is wrong. And you should not pull with repair, because how you will understand further, it can cause a serious damage to your car. So, the most common reason for the appearance of a large amount of white smoke from the exhaust pipe is to enter the water to the cylinders of your engine. To make sure that you can disassemble the cylinders and check the candles. If water gets into the cylinder, then the candle will be the same flare as inside your electric kettle - simply speaking, scale. This is not the end of the world or disaster - you just need to check all the cylinders, determine which one has a flaw, after which it is repaired or replaced. And best do it on a professional station maintenanceSince in most cases the cause of this malfunction is incorrect engine assembly, as well as its word can be said for poor-quality spare parts on which many motorists are trying to save.

Also, the cause of this malfunction can be overheating - in this case, you should also turn to a specialist so that it does not simply repaired or replaced the cylinders, but also made a full diagnosis to identify the reasons for overheating. However, the situation can actually be much less simple, it can have a much less pleasant outcome for the driver. The fact is that the liquid falling into cylinders can lead to the appearance of white smoke clubs from the exhaust pipe. But with a lot of steam, you will only take place if you use high-quality cooling fluid. If you decide to save and then bought a cheap Tosol, then it can literally "eat" the insides of your motor due to leakage. As a result, corrosion will spread to the vital details of your engine, and it can be sent only to recycling - repairing such damage is not subject to.

So if you are wondering why the engine smokes, then you should not do it on the go. Observe the problem, eliminate it, and then continue driving around your car.

Bully (SIZY) smoke

If you smoke a diesel engine or gasoline engine, and at the same time smoke has a bluish shade, then the reason lies in the fact that too many oil gets into the cylinders. As a result, smoke clubs are very thick and dissipated longer than the previous cases described. At the same time, most often they have a characteristic smell of burning oil. It is worth paying attention to the fact that not always at a glance can be determined that this smoke comes out of the exhaust pipe at all. Given the fact that its appearance can affect the most diverse factors, from the quality of engine oil to the air temperature on the street, shades of blue can also be the most different. And in some cases, blueness is so weak that it is almost impossible to distinguish such a smoke from standard exhausts. However, the check is carried out extremely simple - you need to carefully monitor the level of oil, since when it leaks it will be an obvious overrun. As for physical factors, you will need only your nose and white paper sheet. You can easily feel the smell of oil in exhaust, even if they have a completely ordinary color, and on a sheet of paper that needs to be placed next to the exhaust pipe, there will be quite noticeable oily spots. Well, now you have made sure that you have problems with engine oil, you know why your engine smokes blue smoke. It's time to deal with the faults that in this case can be a wide variety.

Valve stem seals

As you have already done to make sure if your engine smokes white smoke, there may be several reasons for this. But in the case of a bluish tinge, the reasons may be numerous, so you should carefully deal with each of them, since any may be relevant in your case. Most often, the cause of bluish smoke is damaged oiling caps. These caps must hold oil to the moment the need to feed it will appear. But due to the damage to the cap, the oil flows and then when it is not necessary, because of which too much accumulates. That is why if this item is damaged, then after a long parking lot at the first factory you can see a huge cloud of a bluish smoke that breaks out of your exhaust pipe. In most cases, it all depends on the quality of the caps themselves - if it is high, the oil will not flow and after several years of work, and if it is low, then leaks can start almost immediately, what can we talk about a year or even several years. By this time, a bad cap is already more likely to fall apart. So if you in the cold engine smokes bluish smoke, then first of all you need to pay attention to the scale caps, since due to the lack of tightness in damaged parts, even in the unused engine continues the "feed" of the oil, which is then combed at the factory .

Masonry rings

Also, if you smoke the engine in the blue smoke, the problem can be convened also in the oil lining rings, or rather, in their wear or location. These rings are designed to remove an excess oil film, and if they cease to cope with their task, how it is possible to guess, the cylinders get over the oil. Of course, the effect is not such as with strong damage to the oil-challenge cap, but the loss of oil is still noticeable, and the engine still continues to smoke. You can solve this problem by cutting data rings, but should not think that this procedure will solve all your problems at once. After the rounding procedure, the ring is started to function fully, but you will have to be extremely closely followed by the activities of your engine. After all, after this procedure, the spring properties of the rings are significantly reduced, due to which the occurrence may happen much more often, especially with negligent circulation. As you can see, if you smoke the diesel engine in black smoke, find the cause of the fault and eliminate it is much easier than if smoke is blue. After all, the caps and rings are not all that may be faulty in the car, which is why blue smoke appears, you have to consider a few more cases.

Turbine

If the turbocharger is installed in the car, then the reason can be in it, or rather - in its malfunction. What to do in this case, if you smoke the engine? VAZ is one of the cars that can be taken as an example. It has a turbocharger, and if it is in poor condition, the result can be a thick gray smoke, which causes damage to the environment, leads to an oil processing, as well as to an unpleasant odor and not particularly attractive appearance. What is happening inside the engine? The fact is that the turbine bearings are automatically lubricated by oil for further operation, but if there are malfunctions, the oil that was intended for lubrication fall into the intake path. Well, the result of excess oil during combustion is the aforementioned bluish smoke. What is in this case to do?

Here options are not so much - you will have to repair the turbocharger turbine. If you have skills and required toolsYou can do it yourself. However, it is recommended to still provide it with specialists who will cope with the task faster and more efficiently. But before proceeding to repair, you need to make sure that the problem is indeed in the turbine - as you already understood, the reasons for the appearance of smoke can be very much, and it is always worth it to understand directly with the causes of the fault, and then it is already pointing to it . To do this, you need to remove the air duct that connects the turbine and the engine, and check inside the presence of oil. If it is there, this means that the leakage actually exists, and you will have to make a serious repair. However, in this case, we are talking about a fairly launched situation that can still be prevented if you take care of your engine in advance. When you have any suspicion that there are too many oil in the turbine, then you need to take a clean fabric (it should be easy and calmly skip liquid and air, it is best for march) and stretch it on the nozzle in place Compounds with choke. After that, you need to start a car and press the gas pedal several times, after which itching it and check the fabric that you have previously stretched. If there are traces of oil on it, then you already have a problem - it is simply in an early stage, and it will be quite simple to solve it, at least much easier than when you have already directly notice oil savings in the air duct.

As you can see, if you smoke the diesel engine with a black smoke, then the problem can be solved much faster, but this does not mean that its decision will be less costly - with proper caring for the car, regardless of the color of smoke, you can quickly find and eliminate any problem.

Low quality oil

Naturally, there is a huge number of reasons why the color of the smoke from the exhaust pipe can be blue, but it all makes no sense to describe them - here you will find only the most famous and common cases. For example, in no case you can not forget about the oil itself - many motorists immediately begin to search inside the car, but in fact, the cause of problems can be in which oil you pour into the engine. If it turned out to be not the highest quality, its properties may differ from the quality product. Accordingly, in the engine about his behavior it is impossible to clearly something - it is necessary to check what product you have acquired, and if its quality is far from the ideal - it is better to change it right away. After all, if you continue to enjoy the fact that you have already spent money on it, you can apply to your car even more serious damage.

But there is another option - a similar problem may occur when you use the highest quality oil. The reason in this case can serve overheating oil, as a result of which it will lose its properties. Naturally, in everyday life, it happens extremely rarely, because for overheating oil, extreme conditions are actually needed - that is why special sensors check the oil temperature are always installed in riders' machines. But if you load your car, put on it all my family and go on a hot day under the mountain on vacation, then the combination of all factors can lead to overheating of the oil and, accordingly, the loss of all its functions. In this case, nothing will happen - you will have to simply change the oil to change and try to no longer allow such situations.

Other cases

No matter what circumstances do you have - your engine smokes black smoke, the clubs of a bluish haze or just a huge amount of white steam are broken out of it, it's just a huge amount of white steam, "you should never eliminate the likelihood that you happened to something special. Of course, in the first place, you should use this guide and check all the most common cases, since most often the problem occurs at motorists far from once. But sometimes causes are not the most standard - cause smoking, for example, can cause a microcrokery in the engine. There are even cases when the engine smokes with black or blue smoke, if the driver flooded into the fuel tank is not the type of fuel that is intended for a particular engine. Remember that from any situation there is a way out, and if you cannot find it yourself, contact the specialists.

Quite often I have to notice that increased smoking appears from the exhaust pipe of the car. Sometimes situations are similar to pictures from old movies, on which the locomotive is enveloped by smoke clubs. Each motorist, the appearance of excessive smoke brings anxious unrest. Then the intensive search for answers to the question is why the engine smokes.

Elevated smoke often becomes an indicator of engine malfunctions. Symptoms relate to gasoline and diesel engines. Motorists with experience are capable of putting a fairly accurate diagnosis of color and features of exhaust. And determining the essence of the problem, it is easier to cope with it.

Smoke color as an indicator of automotive problems

Through the car's exhaust pipe into the atmosphere, spent gases are constantly emitted. With a good engine, this happens almost imperceptibly and in minimal quantities. However, at the initial stage of serious breakdowns in the power unit, exhaust can become abundant, painted various color shades.

In some circumstances, the appearance of smoke is combined with such symptoms:

The increased smoking of the cold or hot motor is the first, and sometimes the only true, sign of breakdown of the power unit. It is more accurate to diagnose malfunction, to identify the severity of the problems, the characteristic color of the exhaust helps the various stages of their flow.

Smoke transparency (whore exhaust)

Transparent or whitewood exhausts most often appear immediately after starting the engine or with an impetuated to operating temperature. Actually, this is the causes of the emergence of such exhausts. Similarly, the power unit reacts to simple. In winter, after the frosty night, the inaction of the exhaust pipes most cars are thrown into a transparent or whiten smoke. But, in fact, it is a ferry.

Transparent smoke - not a reason for panic

According to the degree of engine heating and the entire gas distribution system, the amount of smoke will decrease. At very low atmospheric temperatures, steam remains noticeable even when working well-heated motor. The humidity of the air additionally affects the thickness of such emissions. Increased performance increases the amount of transparent smoke from the exhaust pipe.

It is quite easy to make sure that the transparent smoke is easily dissipated and the ferry. A simple experiment will prove that the motor does not experience serious problems. A clean paper sheet is applied to the exhaust tube. After a certain time it will dry, and the exhaust condensate will not leave distinct dirty fatty or oily spots. You can attach any container to the back of the muffler. Condensate is formed on its walls when the engine is running.

Transparent smoke may be accompanied by the appearance of droplets from the exhaust pipe. This is not to be afraid. Condensate emissions accumulated inside the system occurs. The situation does not become a reasons for panic, the engine does not require interference or repair.

White smoke

After warming up the motor in a warm time, a dense white cloud of the exhaust pipe can appear. It indicates a coolant in the cylinders. This is due to the disorders of tightness through the gasket between the cylinder block and the head, cracks in the cooling fluid motion channels.

It is worth paying attention to other possible causes of white smoke. On the plugged engine check the fall of exhaust gases into the cooling system. To do this, remove the lid of the expansion tank or unscrew the radiator cork. At the same time determined:

presence of smells of exhaust;
There is an oily film in the fluid itself;
Lee reduced level of coolant.

When you start the engine, an increase in the amount of liquid in the tank, the appearance of bubbles, drilling can be observed. All these signs will indicate exhaust gas in the cooling system.

Gas getting into the cooling system leads to an increase in pressure. After the engine stops, the coolant partially goes into the cylinders. Its level in the tank is reduced. Antifreeze (toosol) through the piston rings is seeping into the pallet of the crankcase. There it is mixed with motor lubricant, thinning it. A peculiar emulsion is formed. Motor oil changes color, purre, loses work properties.

Experienced masters advise before repairing such damage to wash the diesel engine from the inside. So they save nerves and time when repairing. The purified motor will help easier to determine the fault location.

Additionally, make sure the coolant penetration into the lubrication system helps the diagnostics of the oil-fuel plug and the cylinder head cover. A light foam with a yellowish tint is formed on their inner side. Such a sign can be fixed on the oil dipstick.

Powered antifreeze can provoke the internal corrosion of the metal parts of the engine. Sometimes damage becomes through, rust particles fall into the expansion tank. Requires significant means to restore such an engine.

Engine overheating - background for white smoke appearance

The reasons for the appearance of abundant white smoke often lies in the overheating of the engine. The inefficient operation of the system responsible for cooling the motor leads not only to overheating of the power unit, but also to the deformation of the piston rings. Consequences require immediate response, immediate troubleshooting.

In the presence of white smoke, it will be necessary to check the condition:

To determine the problem cylinder, you need to unscrew the candles. In a faulty cylinder, the presence of a coolant will make it necessary to know how to scale on the electrode. Such a flaw is largely similar to what is found inside the kettle.

The liquid can fall into the combustion chamber. This leads to the formation of air traffic jams, entering a large amount of fluid into the cylinders. The consequence may be hydrate. Then the pressure jumps lead to the formation of cracks on the case of certain parts, damage to various elements of the equipment.

By setting the specific reasons for the appearance of white smoke from the exhaust pipe, it is possible to repaid without delay. The consequence of faults will have to be eliminated in the work of the entire cooling system.

Bluish smoke

The appearance of such a smoke speaks of an excessive amount motor lubricant in cylinders. If the shade of smoke can not be installed, then the paper is applied to the exhaust pipe. Confirmation of the problem situation will be fat stains remaining on the sheet.

Blowed-nasy clubs are sufficiently thick. They dissipate longer in the environment. They are accompanied by a characteristic and stable smell of burning engine oil.

Similar circumstances encourage regular oil level check. Its significant consumption (more than 0.5 liters per 1000 km) will confirm the presence of faults.

The engine smokes bluish-sysia color, pointing to typical breakdowns:

The history of motorist practitioners captured curious cases, as a result of which a bluish-gray smoke appeared from the exhaust pipe. So, some owners of cars flooded in a fuel tank for two-stroke engines. This type of fuel is specifically mixed with oil. Then the search for the causes of the smoke is extended to complete incineration by mistaken fuel.

Diagnostics of motor malfunctions with turbocharger

The poor condition of the turbocharger is often manifested through a bluish-gray smoke. Lubricating fluid is automatically supplied to the turbine bearings. With a certain coincidence, the oil intended for ensuring normal work The turbine falls into the inlet truck. So excess oil during combustion turns into a bluish-gray smoke.

For more accurate diagnosis of problems associated with the functioning of the turbocharger, certain operations should be done. Remove the air duct connecting the motor and turbine to check for the presence of inside the oil. The present lubricant indicates the launches of the problem and the need for serious repairs.

Therefore, at first suspicions for the appearance in the turbine of excess oil, it is necessary:

take a clean lightweight fabric, well-transmitting liquid and air (for example, gauze);
stretch the fabric on the throttle nozzle;
make a car;
several times with sufficient power to press the gas pedal;
drown the engine;
Check the condition of the fabric.

The appeared traces of oil on the fabric talk about the early stage of the problem. Allow this situation is much easier than in its launched state. It is worth considering that the malfunctions of one unit or system lead to a violation of the normal performance of other elements and nodes.

Black smoke

The emerging black exhausts can also tell about why the car smokes. Shades of smoke are from dark gray to the dense-black. They indicate an excessive enrichment of the fuel mixture. Anxious color is provided by soot particles, which are thrown into the atmosphere due to inefficient fuel combustion.

Most often, the black smoke speaks about the problems associated with the fuel supply. They can be revealed by turning attention to direct or indirect signs:

Black smoke becomes a consequence that not all fuel has time to burn in a cylindrophone group. If you delay with repair in such cases, the results may be very deplorable. In case of serious damage to the cylindrophone group, other nodes of the power unit, expensive repairs may exceed the price of the car itself.

The reasons for the appearance of black smoke are considered depending on technical equipment car. Motors, equipped with carburetor injection, smoke black due to overflow fuel in a float chamber. In such situations, it is necessary to check the needle valve and jets responsible for air supply.

In case of injection of fuel, the re-enricmentation of the mixture occurs due to the failures of the electronic sensors. Do not exclude from the list of reasons for the possible loss of tightness of the nozzles themselves. If the injection nozzles do not cope with the dispensing of fuel, then an excess of fuel falls in the combustion chamber. The excess fuel is moved to the motor crankcase, flushes oily protection from the walls of the cylinders.

Often black smoke is complemented by a steady smell of fuel. This is another one of the signs of fuel in the engine oil. You can double-check this sign by measuring the lubricant level. Increasing the amount of oil testifies to the dilution of flammable.

Specificity of diesel engines

Black smoke, exhausting from exhaust pipes of diesel or turbo diesel engines, becomes the result of poor fuel quality. Among other reasons are to consider such:

TNVD is one of the most complicated nodes in the entire fuel feed system, which are equipped with diesel engines. For efficient operation of the fuel pump, a lubricant is required in the diesel combustion. Low test fuel does not have properties to ensure reliable operation of the fuel pump. Therefore, this important aggregate assembly may fail prematurely.

The appearance of a smoke loop of white, sizogo or black shades is a serious reason to seek help to the car service crafts. Deletion, postponement of the problem of the problem leads to the rise in repairs, creating unpredictable situations on the road. Carefully looking at the color of exhausts, you can prevent many problems. Timely diagnosis of causes of faults will help maintain a car in a good functional state.

Any car constantly sends exhaust gases into the atmosphere - and this is a normal situation. The whole thing is in the number of harmful exhausts and their composition. With a properly adjusted and serviceable gas system, the silencer will be transparent and almost invisible (excluding frosty weather). But what should I do if the engine smokes very much, throwing a black or-sizogue hint exhaust? This means that with your power plant is not all right and the color of gases will help to figure out the causes of the "disease" of the car.

Causes of engine smoke

The enhanced output of gases from the muffler may be a consequence of the wrong balance between flammable and air, not simultaneously or incomplete combustion of the mixture, oil entering or antifreeze into the engine cylinders. The main reasons why the car smokes can be generalized below:

the emergence of faults in the fuel system;
wear of the details of the cylinder-piston group;
cooling system problems;
improper functioning of the gas distribution mechanism.

Experienced auto show can accurately determine why the car is very smoke, having studied the shade of the exhaust. And if the reason is known, then it is much easier to cope with the problem. The appearance of the SIZO, white or black exhaust is often accompanied by "passing" troubles:

Difficult launch of the cooled engine.
Unstable operation of the power unit in idle mode and under load (the tachometer arrow jumps).
Increased oil and gasoline expenditure (diesel).

It is worth making a slight retreat. The fact is that some cars have a relatively high oil consumption and fuel provided by manufacturers. This refers to powerful and expensive cars. For example, toyota engine. The 2UZ FE with a volume of 4.7 liters on the highway consumes 10 liters per 100 km, and in the city all 16. At the same time, the natural passer's oil is 1 l per 1000 km. Such parameters are particularly sharply abandoned after transplanting from the cost-effective machine of the middle class.

Loss of traction car car.

It also happens that smoke from the muffler tube is the only sign of a malfunction of any node of the machine. You can more accurately diagnose malfunction in the exhaust color.

Transparent Smoke

Inexperienced car owners sometimes leave the pairs from the muffler take over the smoke and begin to panic. However, this is a completely normal phenomenon. The liquid is condensed on the exhaust pipe at low temperatures and after starting the engine, water begins to actively evaporate, turning into steam. When the motor is heated to the operating temperature, the "phenomenon" will stop. The volume of the pair of allocated is associated with the humidity of the surrounding air: how it is more, the longer than white "smoke." It is not a sign of breakdown of the power unit, and no action is required in this case. To finally make sure that the engine works normally and steam is coming out of the pipe, put a clean piece of paper to the muffler tube for a few seconds: water will dry and will not leave the slightest marks. If this is the way, it means everything is in order.

The output of black smoke

This trouble makes the most serious damage to the environmental situation and testifies to serious malfunctions in the power plant. It feels a strong smell of burned oil or metal, in the cabin sometimes stinks with heated plastic. Why does this happen? Probable reasons when the engine smokes in this "mode":

the fuel system malfunctions: the composition of the air fuel system is seriously unfailed - an excessively enriched mixture is incubated to the cylinders (many gasoline or diesel fuel and low air);
failures B. electronic block motor control (disturbed correct injection);
loss of nozzles (they are transfused) tightness in the injection engine;
the drop of compression in the cylinders of the power unit: the cause is the wear of the rings, pistons as a result long operation or low-quality repairs.

These faults lead to increased fuel consumption, the smell of gasoline or diesel fossil will be felt next to the machine. For an accelerated check, remove the candles and evaluate them: the black flare confirms the malfunction of the ignition system or fuel supply.

Smoke forming a bluish tint

If it appears at a diesel engine or a car that works on gasoline, then this indicates the penetration of oil inside the cylinders. As a result lubricant composition burns, forming a niaize smoke clubs, which is poorly dissipated. Blue tint may have a different intensity, which is associated with the brand of oil used, ambient temperature. Make sure the lubricant is overruning, measuring its level. Regular decrease in the amount of oil indicates its combustion or leakage. Another test is carried out using a sheet of clean paper attached to the silencer pipe with the engine center. Oil spots will only confirm the presence of lubrication in the combustion chamber. The reasons for which the engine smokes is:

breakdown, wear or low quality oil-challenged caps: when the motor starts on the "cold" after a long-term parking lot, the lubrication makeup will be burned along with the fuel, which will immediately show the smoke formation;
piston rings
- Using a lubricant that does not match the requirements of the manufacturer.

SIZY smoke can be formed when the engine is unscrewed. After warm up, the elements of the power unit begin to expand, and the blue exhaust gradually becomes less strong, and then it may disappear at all.

White dense smoke formation

From steam, it differs not only in high density. If the machine smokes with a white smoke, the latter will be dissipated for a long time. At the same time, the smell of Gary is felt, not disappearing after reaching the engine operating temperature. When starting the engine on a "hot" problem is also not solved. White smoke talks about the presence of serious problems in the cooling system: contact with antifreeze oil. Shades of exhaust depend on the type of antifreeze (coolant). Causes of this problem:

tightness of the GBC: Fractional Formation, Strong Deformation or Pasching;
the use of low-quality coolant and: poor antifreeze is able to literally "publish" metal, sharply enhancing corrosion, which can lead to the impossibility of restoring some parts of the cooling system.

When mixing antifreeze and oil, the latter loses its qualities and becomes less viscous, which adversely affects the normal functioning of all systems power plant And leads to a decrease in its operational resource.

Required actions when the appearance of white dense smoke

First, carefully inspect the candles: if they have a scale, it speaks of water getting inside the cylinders. Then open the cooling system of the expansion tank: a small level of antifreeze, oil film, the smell of Gari indicate a cooling system tightness. Next you need to dismantle the head and check the integrity of its gasket, the presence of cracks. All restoration work must be carried out in a specialized auto repair shop.

Actions with the appearance of a sizogo smoke

In the chamber, where the air-fuel mixture is prepared, the oil penetrates through the lost tightness of the valve or "thanks" to the worn piston rings and. Then it will take to clean and hongle cylinders, switch to the next repair size. Sometimes (but not long) helps the replacement of piston rings. The first option is when the amount of oil falling into the cylinder exceeds all limits, implies or valves.

Sometimes white-colored smoke of the blue shade is formed due to the leakage of the lubricating composition and enter it to the exhaust manifold. Then check and, if necessary, put new gaskets and (or) the crankshaft gland.

Engine malfunction with turbocharger

If the machine is equipped with this unit, then the appearance of a white exhaust with a jack can be associated with oil leakage, which instead of lubricating the turbine bearings, goes into the starting system. To check it out, remove the turbine from a diesel engine or gasoline engine and see if there is oil in the air duct. If so, it is more expedient to visit the auto repair shop. When leaving the tube of black smoke, test tightness inlet system. Especially well noticeable output of the dark exhaust when Peregazovka.