What can a tweeted candle and her color can say. Nagar on the Ignition Candlelings, what the spark plug candles can talk about white and dry what to do

Before traveling, do not be lazy to check the candles. But not after heating the machine to join it and pull them out to check them, this is a dubious way. The heated engine is strongly enriched with a combustible mixture, and it quickly starts. They formed an oily flare, but it disappears when a certain distance passes. Conspect them after passing over 200 km. If you take it a rule, you can avoid breakdowns and eliminate the first manifestations of the problem in time. Remember that normal color is light brown. There should be no traces of oil or nagar. If the color is different, then there is a problem and its reason must be found out.

Causes of the appearance of Nagara

Normal life of the spark plugs of 50 thousand km. By overcoming such a turn, they must be replaced. This is a normal result, it cannot be avoided. An interesting fact, you can perfectly care for the machine, but the appearance of the plaque cannot be avoided. Normal color for them is gray. Easy changes are not scary if the electrodes do not have visible damage. If the new candlelight appeared flaw, then you need to look for reason.

The color of Nagar is what he says and what to do?

Look carefully to the ignition candles. Their color will help you understand much ... For example, you can reveal problem places car. Not enough just to replace the problem element, look deeper, look for the cause. If it does not fix it, the new candle will very quickly come into disrepair. The problem must be chopped to the root. First of all, it is necessary to deal with the ignition system. And the next step is to consider candles. Determine which color has a raid. Allocate:

Each of them indicates the presence of a particular problem.

Black Nagar.

Such a type of naigar occurs with a number of reasons. Severe two subspecies:

Black and dry tart on the ignition candle are served too rich mixture. This could be preceded by:

• Incorrect operation of the carburetor;
• Clogging air filter;
• Great pressure in the fuel ramp;
• Small energy sparks;
• Weak compression.

When an oily Nagar appears - check that the oil does not fall into the combustible mixture. Often the reason for the banal - wear of the oilmaging piston rings. There may also affect damage to the valve caps.

White flag

Such a color appears due to a number of reasons. White flap on the ignition candle can have several shades. Slightly ash appears when the engine runs on low-quality gasoline. To overcome the problem - remove them, wipe and they are again suitable for use. Well, follow the quality of gasoline. But the appearance of brilliant nagar, erosion on the contact electrodes - a sign of the use of superheated candles. This happens due to non-enriched combustible mixture, the product of early ignition, the inoperability of the cooling system. Overheating for spark plugs is very dangerous, because it leads to the appearance of cracks and all sorts of damage. Most often, this situation requires replacement.

Red and Brown Nagar

As for Nagar Red (sometimes called it and brown) colors, then its appearance signals the presence of unnecessary components in the fuel. An option is also possible that too many additives are introduced into the oil. Such a color as a red brick may appear in the event that the engine worked on eaten gasoline for a long time. The surface of the insulator is covered with a brown conductive chain, which violates the normal formation of sparks.

Eliminate the problem is simple enough - clean the system.

The ignition candle does not give a spark if the Nagar overlaps the gap between the electrodes. This is a standard situation for cars in which the motor has long been exposed to high loads. To solve the problem - replace the candles.

Ash, erosion, oil, gasoline

In addition to the color of the presence of problems, a number of factors may indicate. So, erosion is manifested on the electrodes, then there is a combustion of low quality fuel or containing a high number of lead. It causes the wrong gap between the electrodes. The ash protrudes with an insulator and at one point it simply will not give to develop the desired voltage to break through the insulating layer. The ash appears from the fact that oil is not completely burning in the cylinder. The latter appears when there are problems with rings on the piston.

The presence on the surface of the candle the remains of oil, ash testifies to the destruction of the valves or partitions between the rings. Sometimes you can even consider particles of metal dust. Another reason is pouring fuel. There are several reasons: incorrect operation of the fuel system, there are problems in the operation of the ignition system. If the car is worth a long time, then the motor can be at the beginning. A white-blue exhaust gas is escaping from the pipe. But as soon as the car warms up, all this disappears. Do not think that this is the norm. Most likely, the temperature of the cylinder is defective. Oil naughty on the candlelight appears, if a cold candle is used, piston rings or oiling caps are worn.

If it is covered with a thick layer of oil, various mechanical impurities or gasoline - the cylinder does not cope. The reason is destroyed by the valve or partitions between piston rings. Motor trimming is heard, and fuel consumption increases 1.5 - 2 times. When the candle does not have insulators at all, the electrodes - the operation of the motor is broken. Such a situation is dangerous in that the debris can be stuck between the saddle and the valve. This can cause a large breakdown, requiring a cylinder or long-term repairs. Follow the advent of Nagar on the ignition candle in order to identify problems in time.

Video "Coloring of spark plugs"

In this entry, Naila Poroshin will tell, what can be the color of the spark plugs and will show all this on the example

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Reasons for plates on the ignition candlelight: white, black, red

The engine is a complex technical mechanism. Therefore, like any mechanism, it can make malfunctions and malfunctions. Spark plugs are a kind of engine status. According to them, it is possible to determine that any problems appeared in the car engine.

However, not all car owners are able to understand that specifically mean certain readings of this indicator. In this material, we consider what can lead to one or another raid on the ignition elements, and what measures need to be taken to eliminate the cause of the income.

Remember that raid on the ignition candle in a good engine should have a light brown tint. However, removing the electrode to the coffee color is allowed. Also, the candle should be dry, without any deposits. Any other deviations in color indicate problems.

Causes of White Waters on Ignition Candle

So, the first case we will look at is a white flare on the ignition candlelight.

The reason for the white color of Nagar in most cases is a depleted mixture of fuel and air. This means that in the fuel and air mixture, which enters the combustion chamber, too much air. However, if it's all right, then rejoice early. It is necessary to carry out deeper diagnosis.

Other reasons that are able to lead to a white flare on the ignition candlelight:

• Ignition elements overheat (malfunction in engine cooling);
• Low potash number of ignition element (the candle is incorrectly selected);
• The ignition angle is incorrectly set (the ignition later is installed);
• Fuel has a low octane number;

It is necessary to pay attention to the surface of the plaque. If on the ignition element glossy soot, then all these reasons are possible. If the white flare on the ignition candlelight is thick and loose, then poor-quality oil and fuel is guilty. You just need to change these consumables. After that, you need to clean the candles and re-digit vehicle For troubleshooting. Most likely, these measures will be enough to eliminate faults.

Causes of Red Waters

The following case is a red-colored plaque on the ignition elements. Usually this bloom has a reddish brick shade.

Most often, a similar color of the candle is acquired due to additives. At refueling, various additives are often poured into fuel in order to increase the octane number of fuel. Because of such a plaque, the ignition elements are worse generated asking. Over time, it is capable of overheating a motor with all the worst consequences.

You may be to blame for yourself if you use any additives to reduce fuel consumption.

From the red floor, you can get rid of simple cleaning of ignition elements. Well, in the future, try to no longer use the services of the gas station, on which all sorts of additives are poured into gasoline, and of course do not pour similar funds themselves.

Why appears?

But this type of flying should be considered somewhat more. Since the bloom of such a color is different and can be caused by various malfunctions.

Black Nagar appears most often, but also a lot of reasons for him. For example, the flare can be dry, in oil or even with metal particles. The problem can be anywhere, therefore it is necessary to carry out some analysis of Nagara.

If black smoking on a dry candle:

• The combustion chamber comes into the combustion chamber;
• The air filter is strongly contaminated;
• Too low compression;
• Weak spark charge.

Oil black soot on the ignition element is for the following reasons:

• Fortified oil caps valve (seals);
• Mascarm piston rings were worn.

If an oily layer of the soot with the residues of unburned gasoline and metal particles, then the reason is most likely not fully working cylinder. This may occur due to the fact that the valve or partition between the rings of the piston collapsed.

Motor with a similar defect will function unevenly (troit) and spend the fuel strongly. If it is not repaired, then in a short time, perhaps the emergence of detonation. Soon the central electrode and insulator collapses. Therefore, the car needs to behave as quickly as possible to diagnose and make repairs. If you continue to exploit such an engine, then subsequently the cost of repair will cost you at times more expensive.

Well, in conclusion it should be noted that the spark plugs must be periodically verified for the presence of any of the above plates. If you have noticed that the candles do not look as if it should, then do not hesitate with further diagnosis and repair, otherwise the failure will certainly grow, which will lead to much more expensive repair work.

auto-pos.ru.

Causes of Nagar on the Ignition Candle

Automotive spark plugs, especially their electrode part, are operating, in fact, in extreme thermal conditions. They are also affected by the temperature of the electrical spark, and the combustion temperature of the fuel candle.

Moreover, if with an electric spark, no chemical reactions occurs, except for the combustion of oxygen in the minimum volume, then in the case of fuel burning occurs and chemical reactionAs a result of which the candles on the electrodes arise a nagar of a certain color.

Moreover, the Nagar will always arise, no matter how correctly the candle worked and, as it were, the fuel supply systems and other systems that ensure the operation of the engine. That's just the color of Nagar on the ignition candlelight turns out completely different.

There is a color of Nagar, which shows that the system works fine. This is usually the formation of light gray. And such a caring of Nagara does not bear any danger. As a last resort, the candle can be cleaned to remove this tag, if problems are starting with sparks. But all other colors of nagar on candles are a signal that may indicate those or other malfunctions in the car engine.

So, let's find out the reason for the appearance of a nagar on the ignition candlelight.

Black Nagar on Ignition Candle

Black Nagar on Ignition Candle

Immediately it should be noted that the black nagar can be different in structure. And one thing, if the Black Nagar looks dry, without the slightest hint of oil divorces. In this case, the nagar is similar to the usual soot, and there may be several reasons for its occurrence. But the main reason is that the fuel mixture is overly enriched.

On excessive enrichment of the combustible mixture affect the following factors:

• The carburetor works incorrectly or is incorrectly configured;

• The air filter clogged and the engine lacks oxygen so that the combustion of the fuel mixture completely occurred. It turns out that part of the gasoline does not completely burn and deposits in the form of black soot appear;

• There were problems with the enrichment;

• If the engine has an injector, then problems with the appearance of black plaque on the ignition candles are associated with the fact that there is an increased pressure in the fuel ramp and an excessive fuel injection occurs. Increased pressure in the fuel ramp may be due to the fact that there are problems with the fuel pressure regulator;

• Insufficient compression in the cylinder or cylinders;

• There are problems with the very candle of ignition, namely with spark, the energy of which is not enough.

But black bloom may not only be dry, but also have signs of oilyness in their structure. If there is an oily, then this is due to the fact that the oil falls in excessive amounts to the combustion chamber and does not completely burn there. Ways of oil enter can be different. Basic: Through the worn oil-chained rings on the piston or through the worn oil caps of the valves.

If we consider two-stroke engineswhich are used for boats, low agricultural machinery, then for such engines, a fuel mixture of gasoline and oil is used. And the appearance of oil black plaque on the candlelight can trite to mean overacting oil in the fuel mixture.

White Nagar on Ignition Candle

White colors on ignition candles can appear for several reasons, one of which is low-quality fuel. But this if the flight does not have a glossy surface. As soon as the candle is cleaned and fuel in the tank will be flooded with normal, the appearance of a white floor will disappear.

A slightly different situation if the plaque on the candle has a white color and a glossy surface. In this case, the candle is constantly overheated. In addition, traces of erosion may appear on the electrodes. Those. Instead of a smooth surface, small sinks appear. This is also evidence of excessive overheating.

Causes may be as follows:

• Candle or candles are not suitable for this type of engine;

• Excessively depleted fuel mixture;

• Unauthorized air seats in the inlet pipeline occurs;

• Perhaps overheating occurs due to the fact that there are problems with the cooling system. And this can be anything, ranging from the level of fluid in the cooling system and before clogging pipelines in the radiator;

• Ignition is appointed incorrectly. It is early. If the ignition is early, the melted electrodes can be observed, and at the same time the candle can remain clean or have a white bloom or another flare if there is a spark pass.

In addition, the glaze can occur not quite white, but rather yellowish color. Such an effect occurs if there is a sharp rise in temperature in the combustion chamber with a sharp increase in engine revolutions. The solution to such a problem is to install a candle of another type that will not be so reacting to sharp accelerations when driving. Or you should adjust the ride style.

Red Nagar on Ignition Candle

The appearance of such a nagar should not say that there are some system problems in the engine. The appearance of the Red Nagar is the result of combustion of various additives that are in oil or fuel.

Moreover, with a normal proportion of additives, the red flask usually does not appear. But as soon as the number of additives increases, the appearance of a reddish laid, very similar to rust. What additives cause such an effect, it is difficult to say. It is believed that it may be unnecessary washing additives in oil. Although there is no experienced confirmation such postulate.

In such a situation, when a red raid appears, you do not need special actions to check the system. It is enough to clean the candle, change the oil, change the fuel.

How should the normal ignition candle look like?

Color should be brown or gray-yellow. Suppose small wear of the electrodes. There should be no bridge between the candle electrodes. If such a bridge appears, it disappears the spark or spark goes unstable, with skipping.

There should be no chipping and cracks in the insulator, as there should be no serious roundings in the electrodes of the candle.

And if the bridge between the electrodes can still be removed, then various mechanical damage or wear indicate that the candle must be changed.

avtowithyou.ru.

Nagar on the ignition candle as a means of diagnosis

The candle of the car serves to form a spark at a speed of up to 15 discharges per second. The color of Nagar, forms on contacts, accurately indicates the problems of the car.

Organization of coordinated engine work internal combustion Provide additional systems:

• ignition;
• supply fuel mixture;
• cooling and lubrication;
• output of spent gases
• and etc.

Each of these systems, directly or indirectly, affects the speed and quality of fuel combustion in the engine cylinders. As a result of chemical reactions on the candle electrodes, plates are formed. Depending on the quality of the combustible mixture, the time of formation of the spark, its power and duration changes the kinetic energy moving the engine piston.

Diagnostics for the color of the plates of the electrodes of candles

Light light brown (yellow) color of the plaque on the electrodes speaks about the normal operation of the engine and the devices integrated with it. But, in some cases, the tag on the ignition candle can be black, white or red.

Why spark plugs black to guess easily, but it is more difficult to determine the true cause of the fault. Among the main causes of combustion of the mixture with the formation of an excess balance of soot:

• violation of the tightness of the gas distribution system (a loose adjustment of the valves);
• later ignition (the fuel mixture does not have time to burn completely);
• hit motor oil in the combustion chamber;
• excess fuel mixture due to carburetor or injector faults (disadvantage of oxygen);
• air filter clogging.

The main reason for the appearance of black plaque can only be due to the inefficient combustion of the fuel due to oil entering it, reducing the amount of oxygen or untimely sparking.

White nagar on the ignition candle is formed for other reasons. He speaks of a depleted fuel mixture supplied by a carburetor or injectors into a cylinder. It can be said that the system does not supply enough fuel or the mixture is oversaturated with oxygen.

The car in such cases is badly started, but on increased turns Going above average. Such a mode of operation may be like fools of fast driving, but leads to the rooting of cylinders and melting the metal parts of the candles due to elevated temperature in the combustion chamber.

Red Nagar on the ignition candle shows that you are overpowered using fuel additives containing metal, or use gasoline with elevated octane number By adding additives.

The danger of a red raid is that, over time, a conductive layer of iron is formed between the candle electrodes, blocking the formation of the spark and leading to a short circuit in the ignition system.

Types of candle in Nagara

Ignition Candle Maintenance

If you departed on the same candles of more than 30-40,000 kilometers, then even with a serviceable ignition system, they will start closing. The electrodes are formed by plaque and iron oxide that interferes with the formation of sparks. In addition, the metal, entangle, increases the distance between the electrodes, which complicates the sparking.

Usually spark plugs after long operation Change, but in some cases it is possible to extend their service life. To do this, it is enough to clean the contacts. But if you just clean the nagar, the effect may be negative due to the increase in the gap between the electrodes.

Restore the nominal clearance can be adjusted to the top electrode of the candle, controlling it using special detection.

Property for measuring gaps

You should pay attention to the condition of insulators. If the insulator has cracks or other mechanical damage, the candle is subject to replacement. The presence of oil and dirt on the insulator is unacceptable. This reduces the effectiveness of the insulator, reducing electrical current resistance. Its surface must be cleaned.

If the surface of the insulator is covered oil flareIt is possible that the candles are not tightly twisted. They need to unscrew, clean planting, contacts, insulator and screw up to dynamometric key. Table 1 shows the torque values \u200b\u200bdepending on the type of candles and the head material.

Elimination of the causes of unsatisfactory work of the ignition system

The main cause of insufficient combustion of fuel in the cylinder is incorrectly prepared fuel mixture. In cars of old models for the quality of the mixture, the carburetor was answered. The device provided:

• enrichment of fuel oxygen;
• dosing of oxygen in fuel;
• recycling of exhaust gases;
• the supply of fuel mixture into the Cylinders of the DVS.

The main adjustments of the composition of the fuel are quality and quantity screws. The first determines the amount of oxygen in gasoline, the second amount of gasoline. The candle covered with a white bloom says that the carburetor overshams the fuel of oxygen. In many cases, it is enough to twist the quality screw or adjust throttle valve To eliminate the problem. But it may be necessary to replace the carburetor dosing jigger or clean it from pollution. The jets are made of soft copper, so clean it, without damaging, not easy. You should use a soft wire or compressed air. The hole can be cleaned, departing for several hours in gasoline or other solvents.

Also, the carburetor can supply an insufficient amount of oxygen into fuel. The mixture is not completely combustible and black flare is formed on the candlelight. Restore normal operation of the carburetor adjustment.

Carburetor VAZ 2107.

A slightly different situation with cars equipped with fuel supply system with injectors. The color of nagar candles reacts to the quality of the fuel mixture, as well as in carburetor systems. But injectors B. modern cars Adjustable only with computer technologies using specialized software. Diagnose malfunction, color candles possible, but install right corner The ignition and the ratio of combustible mixture components is unlikely to succeed, this utility service centers.

Conclusion

If you find that the capacity of the car decreased, the pickup was worsened, the reaction was slowed down to the position of the gas pedal, it may be necessary to check the candles. Their color will show, if not on a specific malfunction, but on the direction in which to seek the cause unstable work Engine. Color Nagar Candles, different from light brown, is the first sign of fuel or gas distribution system

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Spark plug. Ignition Candle Diagnostics

The appearance of the spark plug can tell a lot about the state of the engine, and the processes occurring in the combustion chamber. For this reason, the condition of the candles is one of important parameters For diagnosis.

A good and normally working candle has a light gray or light brown color of the thermal cone of the insulator. It can be considered that the thermal characteristic of such a candle, that is, its caliper corresponds to the mode of its operation.

Such a candle does not require any interference or replacement.

On the other hand, the normal color of the thermal cone does not always mean that everything is in order with the candle. If with the normal color of the insulator, the edges of the central and lateral electrodes are rounded, and the gap between the electrodes is increased more than the norm, this indicates the erosion wear of the candle, as a result of it long work And the need to replace it.

Black Flaw on Ignition Candle

The ignition candle problems are not rarely related to the use of poor-quality and polluted fuel. In this case, on the insulator and the plates of the candles, you can see the wet black flare with the smell of gasoline.

This suggests that the power system is preparing an excessively rich fuel mixture, at least in some engine operation modes. For this reason, the fuel does not burn completely, and its remnants in the form of a sleeot are deposited on the candle and other engine parts.

Another reason for the appearance of black plaque on the candle may be improper operation of the ignition system, or using a candle with unsuitable for this motor a caliling number, that is, too "cold" candles, because of which the electrodes cannot be self-charge, because they do not heat up to the self-cleaning temperature. After cleaning, such a candle is usually quite suitable in work, and it can be used, if, of course, to preliminarily eliminate the causes of plaque.

Focused spark plugs

In addition to the residues of the combustion of fuel, the contamination of the candles can be caused by oil falling into the combustion chamber. In such a case, the insulator and the electrodes of the candles can be completely clocked by the oil residues, and the candle completely loses performance.

Oil entering the engine combustion chamber can be caused by the wear of the oil-circuit piston rings, oil-circuit caps that guide valve sleeves. In any case, to identify the truth cause of oil entering the combustion chamber. additional diagnostics.

If the candle is contaminated with oil slightly, it can be cleaned, for example, a brush with copper wire, rinse in gasoline, dry and install in place. In case of severe pollution, the candle is best replaced.

White Flaw on Ignition Candle

In the event of a vibrant ignition, the candle insulator has a white color, and on its electrodes you can see the traces of melting. This is a consequence of the overheating of the candle due to the fact that it is too "hot", or the fuel mixture is depleted. It is also possible that too early ignition is installed.

In such cases, the candle must be replaced after eliminating possible faults.

Destruction of spark plugs

Sometimes you can observe the destruction of the spark plugs when its insulator cracks or is chosen. Usually the reason for this is the detonation caused by improper adjustment of the ignition advance angle, or the use of fuel with a low octane number.

Due to the detonation, not only the candle can suffer, but also other parts of the engine, therefore it is a very dangerous phenomenon. A damaged candle must be replaced.

When used as fuel with eaten gasoline, porous sediments can be noticed on the candles electrodes unpleasant odor, resembling the smell of rotten eggs (hydrogen sulfide). If the candle is not very worn, then after cleaning, for example, a sandblasting machine, it can be used again.

P.S. Now you can easily diagnose your engine in the appearance of spark plugs. Good luck!

First of all, it is worth starting with the fact that fresh ignitions function to ignite the fuel and air mixture. Data The mechanism operates in proactive and intensive loads with very difficult conditions that provide for the impact of various chemical biological factors, such as a large spark temperature, as well as when combustion of fuel fluid.

Light white tag on a spark plug

It is the main cause of white nagar on candlelight that is the most chemical reaction, which occurs as a result of the combustion of the above mixture, causing high temperatures and decay products.

After each combustion stage, there will be a minor amount of the fall, the color of which displays problems in the operation of the monitor mechanism, the quality of the fuel mixture, as well as the problems in other car systems. The ideal color of the wave color should be light grayOther shades of Nagara combustible air-fuel mixture show the failures and poor-quality operation of the motor. Let's talk further about this in the article.

White Nagar.

White Nagar on Candle

When repaired or systematic checking your car, you noticed the tag of white on the candlelight, then you need to understand that your car is in a faulty state.

From this we can conclude that the ignition candle can tell a lot about the "health" of the engine, it is known to any motorist who carefully takes care of its transport. Most of you think that the easiest to rely on modern diagnostic works, which will perform highly qualified specialists, but here we will not fully agree, since not all owners of the car, you can pay such financial costs under the power, and some are pleasure from the installation and diagnostic process. With your own hands.

Phased diagnosis

For phased diagnosis, it is necessary to find out and clarify how much the engine functioned to the appearance of Nagara, because it directly depends on the result of the upcoming work on the elimination of this kind of problem.

The main reasons for the appearance of white Nagar on the ignition candle

Another example of white nagar on an injection engine candle

The reasons for the White Nagar on the motor of your car can be different. For example, if there is metal fragments on the surface or large fragments of sedimentswhich are settled in the lower part of the electrode, it provides that the fuel mixture allocates a lot of thermal energy that is condensed in such replacements of the nour.

If we talk about Nagar with glossy sediments, it is worth emphasizing that it represents a special danger to the spark plug of your car.

Nagar testifies to the fact that the cooling of the candle does not occur on the optimal temperature mode. In this case, the pistons can be heated to high temperatures, which can cause cracks in the valve. In this case, we can conclude that overheating and the presence of glossy nagar indicate disadvantages of fluid in fuel system.

Additional reasons

• In the combustion system, the fastened fuel and air mixture.
• Pipeline system pushes excess air.
• The ignition candle produces sparks in a short pace due to low-quality fuel mixture options.
• An inoperable candle that is not suitable for your fuel combustion system.

If tax with metal sediments, in this case, we recommend contacting the specialists. Before solving this kind of problem, do not try to exploit the car in no way, it may be unsafe.

White Nagar, which settles on the base of the electrode, indicates problems in the fuel system. Therefore, the ambulance is a problem in gasoline, and it is best to replace it with better and productive, and in the future fuel another fuel.

How can you check the spark plugs?

Agree that most of us checks the candles when the first reasons for their problems occur. Naturally, this is not the right course of the owner of the tracking of his vehicle.

Check the state of spark plugs carry out every 5-8 kilometers.

How to eliminate white raids?

Spark plug cleaning

One of the most popular methods for eliminating the white bell on the ignition candle are manually cleaning. But pay attention that at home the risk of damageing the insulating coatings of the motor is very high. It is worth adding that on damaged insulators, white raids settle more often than by integer and unscathed. Also, do not clean the candles with solid and sharp materials. Best suitable special brushes Or ribbons with long and thin connecting wires.

conclusions

In the end, if you see the White Nagar on the Ignition Candlels should be immediately thinking about the repair and high-quality cleaning of certain car systems, where the tax is formed. Remember Nagar, this is a consequence of a problem or not the right functioning of one of the systems of your car and when troubleshooting problems in a malfunction failure, pay attention to the color and sediment.

Nagar on car ignition candles - an important indicator of engine adequate operation. When the engine begins to "TRAIN" - this is an already explicit sign that the candles are not all right. However, even at normal operation power aggregate Nagar on candles can say a lot. All of this - in the material from the Procrovant team.

When the engine does not work on full power, Independent motorists should, if possible, do the diagnosis of an iron friend. Hourly visiting station maintenance and computer diagnostics You can prefer the usual spark plug testing, which helps to identify problems even at an early stage.
Even on new ignition candles, the Nagar appears after 100-150 mileage kilometers. In winter, it is also necessary to check the candles after preheating the engine, and even better - trips to the same hundred kilometers. Otherwise, you will see only a black raid from the enriched fuel mixture.

Black Nagar on Ignition Candle

Most often, the candlelight is formed by black nagar, which can be or velvety, or oily. The first type of Nagar indicates a large amount of gasoline in a mixture of fuel and air. The reasons for the Black Nagar on the Ignition Candlels lies in one of the following problems:

• Incorrect carburetor operation (due to a malfunction or bad setting);
• Fault Candle of ignition (issues a weak spark or does not issue at all);
• Problem problems;
• Clogging of the air filter (which is why there is not enough oxygen with fuel and it is not completely combusting);
• Excessive fuel injection (due to exceeding pressure in the ramp or regulator malfunction);
• Weak compression in one or more cylinders.

Black Oil Nagar occurs when a large amount of oil in fuel is hit. The reasons for that two: carriages of valve caps or worn oil-giving piston rings.
On even more serious troubles, you will tell you the remains of the fuel mixture and metal fragments - an indicator that the engine cylinder completely refused (the partition is destroyed between the piston rings or the valve itself). In this case, the engine will work with increased fuel consumption, and the constant detonation of the mixture will gradually lead to more and more deposits.

White Nagar on Ignition Candle

Unlike black, white nagar indicates a depleted fuel mixture. The reasons are chosen:

• in poor fuel;
• in candles with low caliling number;
• in incorrect ignition setting;
• failure in the cooling system.

Further exploitation in such conditions leads to a melting of the candles, overheating the combustion chamber (there is also a yellowish blooming) and, as a result, the valve scatter.

Red Nagar on Ignition Candle

This type of Nagar is one of the most harmless. It causes various additives to fuel or oil, and the brighter the flare, the worse the mixture in the engine.
The reasons for the Red Nagar on the ignition candles are eliminated simply: replacement of oil, gasoline and candles themselves.

Oil Footprints on Ignition Candle

If there is no carname on the candles, but only oil trails, it indicates the start of the destruction of the engine parts. At this time, the engine loses power, troit, consumes more oil and fuel, and in the first minutes of work there is a blue-white exhaust.
These traces occur as a result of malfunction with piston rings or valves.

Solo traces on ignition candle

The rally falling on the candlelight, regardless of the color, speaks of the engine oil in the combustion chamber. The reason is the cylinder generation or the rings of the piston. Together with the raid there is an increased oil consumption and, as a result, the blue exhaust.

Erosion of spark plugs

In addition to plates on candles, erosion can occur. The reason for its appearance lies or in the development of the resource of the candles themselves or fuel with a large number of tetraethylswin. Replace the candles and fuel, almost always after this problem disappear.

note

In the middle candle, the ignition is designed for 25 thousand kilometers. Even if this resource has not been developed, periodically it is worth checking the quality of their work on the subject of early troubleshooting.

So that the engine worked stably, the candles need to be cleaned periodically, and this can be done in several ways.

• The most common is mechanical cleaning with a rigid caproic or even a toothbrush. Of course, it is possible to use both sandpaper, but it is easy to damage the insulator, and this is fraught with at least reinforced by nagar formation.
• A hundred is offered sandblasting cleaning of candles, and you can make a similar home (if there is a drill with a reverse).
• Cleaning the calcination or warming helps if you poured candles with a cold start. It is possible to learn differently: a gas stove, a soldering lamp, open fire and so on.
• Cleaning chemicals The most diverse. Rust cleaners and vinegar, and even Coca-Cola.
• Ultrasound cleaning is also available on some hundred. True, it is more expensive, and effectiveness is lower than the sandblasting method.

Outcome

Spark plugs will help you reveal the cause of violations in the engine. Each of the types of Nagar indicates specific malfunctions of the power unit. With serious impairments, it is better to immediately contact a hundred to avoid adverse consequences.

Spark plugs are an essential detail that is necessary for work. The main task is the formation of sparks in the combustion chamber, due to which it is possible to realize the ignition of the fuel and air mixture in the cylinder.

Note that any violations in the process of spar formation lead to the fact that the engine begins to lose power, an increased fuel consumption is observed, the reactions are slowed down to press the gas pedal, the power unit begins to work unstable, troit, has toxic exhaust, etc.

At the same time, for experienced motorists and professional auto mechanics, diagnostics for the color of the ignition candles is a reliable way to determine the state of the entire engine, identifying possible problems and failures. The fact is that the specified elements are in the combustion chamber and are a kind of status indicator.

Such knowledge can be useful both in case of checking the candles themselves or during the search for various malfunctions of the motor and when buying a used car with an unknown history. Next, we will look at what should be the right color of the ignition candles, as well as what color of the spark plug, which means and on what engine breakdowns indicates in one way or another.

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Different color of spark plugs: what does it indicate

As already mentioned, appearance Candles allows you to evaluate the quality of the work and the general condition of the entire engine, as well as its individual components and mechanisms. Immediately, we note that it is necessary to start examining the candles only after the engine warmed well and went out on the operating temperatures, and also before the inspection worked in loaded mode.

In other words, the car should drive at least 20-30 km. At the same time, the optimal approach can be considered to be diagnosed on candles after a long ride on the highway, when the car passed at least a pair of hundred km.

1. So, let's consider the value of the color of the ignition candles, which can be seen after their unscrewing on various IHSs. Let's start with the fact that the normal color of the ignition candle is such when the skirt of the central electrode of light brown color, there is practically no nagar and various sediments. Also should not be visible. Such a color of work candles indicates the efficiency of the motor, the completeness of the combustion of the mixture in the cylinders, the lack of oil consumption due to wear or.
2. If after unscrewing it is clear that on the central electrode, the black fluffy nagar accumulated, then this indicates problems with or air supply. As a result, the motor operates on a enriched mixture and oversaw fuel. The reason may be the need for additional, failures in work, pollution.
3. In the case when the candle electrode is covered with a gray light rush or a white tap, then such a color indicates that the motor operates on a too poor fuel and air mixture.

   In such a situation, it is necessary to in-depth to diagnose the internal combustion engine, since the poor mixture in loaded modes leads to a strong overheating of the spark plug and the entire combustion chamber. As a result, these overheating can cause. If the spark plugs are white, the causes can be in the impaired mixing processing processes, excess air superstar is possible, the failures in the operation of the sensors, etc.

   It should not be forgotten that the low calil number of candles or poor fuel quality, and even early ignition can lead to the fact that the cetral electrode and the area near it will be covered with a white bloom. In parallel, it should be borne in mind that the Malfunctions of the DVS and the operation of the motor at critical temperatures may also be the cause of the formation of such a white plaque.

4. Nagar color on ignition candles, which is more like a brick color (has a shade close to red brick), indicates that the power unit operates on fuel with an overpressure of metal-containing additives. It is important to know that the spark plugs of the red color will not work normally in the engine with time, since the deposition of heavy metals (for example, lead) on the candle insulator begins to carry out the current. As a result, the spark does not pass between the electrodes, and the element itself loses its performance.
5. Also do the diagnosis of the unit and determine its status in the color of the Nagar can be in the event that after turning the candles, traces of engine oil in the thread region are noticeable. As a rule, the engine in this case with great difficulty is started, troit on the cold, although after heating out the inheritance of combustible candles, it begins to work more or less stable. After turning, the lubricant falls on top of the candle thread, but this does not mean that it is originally grilled at the bottom.

   In any case, availability fresh oil On the candle and in the combustion chamber can talk about problems with (oil reflective caps) and point to other malfunctions. Such a motor without repair will be bad, "there is" oil and. Note that sometimes lead to the fact that the oil accumulates outside, that is, in the candlestones.

   In such a situation, you need to additionally check candleys For poured with lubricant, which will allow in the future to avoid inaccurate and hasty conclusions.

1. If it is noticeable that the central electrode of the candle and the skirt was covered with engine oil, as well as on the candle, unlawful fuel found, then the cylinder, from where the candle was unscrewed, does not work, but. As a rule, the motor in this case is noticeably troit, loses its power, oversampis fuel. The reasons for this can be a lot, ranging from a malfunction of a candle or ignition system and ending with serious breakdowns in the engine (low compression, valve squeak, destruction, etc.). The most disturbing feature can be considered the presence of small metal particles that stick to the oily nagar. This indicates the destruction or significant wear of any part or element, after which the metal fractions fell into the combustion chamber. In such a situation, the engine must be disassembled, to carry out a defect and then repair.
2. The explicit destruction of the central electrode and its ceramic skirt will indicate that the engine worked for a long time under conditions, an early ignition is exhibited, a fuel is used with an inappropriate octane number for a specific type of DVS Or the candle has a low quality of manufacture, marriage or production defect.

   Naturally, in this case, the cylinder does not work, the motor troit, etc. The danger of the destruction of the candle is that the separated parts can get stuck under exhaust valve and cause other more serious breakdowns. The result in this case will be the need to repair.

3. Abundant accumulation of ash sediments on a candle, regardless of the total color of Nagar, indicates that the oil is consumed on the avgar in the combustion chamber. The most common cause is. In case of problems with rings is observed increased flow Oil, in the regimen mode, the exhaust acquires a bluish shade, smoke becomes oily. It happens enough to bring to exhaust pipe A sheet of clean white paper and pay off at idle, after which fatty oil spots remain on the sheet.

During how the color should be a spark plug in one case, you can conduct DVS diagnostics. Separately add that it is very important to comply with the rule when the motor must warm up before twisting the candles, under loads.

The fact is that if immediately after the cold start in the engine, malfunctions were noticed or failures, and then candles were twisted for checking, then in many cases you can see the gray-black nagar. At the same time, such a tag does not yet mean that the engine has a problem associated with constant formation of such sediments, failures in mixing formation, etc. If it is simpler, at the moment of cold start, the mixture is enriched. It turns out that a malfunction, for example, lies in the ignition system, and the black nap and the flooded candles do not indicate any problems with the power system (inletor or carburetor).

As already mentioned, to obtain reliable data before turning the candles on the car, it is necessary to drive around 30, and even better two or even three hundred kilometers, and on the highway. If the engine condition is concerned and need to be diagnosed on candles and their color, then the following steps will be the most correct:

• pick up new candles corresponding to the recommended physical dimensions and a values \u200b\u200bof a gauge number for a specific OI;
• fill high-quality fuel on a proven gas station;
• after installing candles, go on a trip along the highway, which will overcome the distance of at least 30 to 300 km;

Only after the specified actions, you can unscrew the candles, after which they can judge the color, in short and state dVS work. It should also be borne in mind that the quality of fuel in the CIS is significantly inferior to fuel in European countries. It turns out that the stated service life of any spark plugs regardless of type, brand, design features (iridium, multielectrode, platinum, etc.), as well as other differences, it is desirable to reduce 20-30%.

It is important to understand that although many manufacturers guarantee normal work Candles for about 30 thousand km, taking into account the quality of domestic fuel, this indicator in practice may not exceed 15-20 thousand km. For this reason, it is recommended in parallel to each scheduled maintenance (10 thousand km) to unscrew the candles to check them, as they may need to be cleaned from nagar, adjusting gaps or even premature replacement.

Finally, add that the color of the sparks on the ignition candle can also partially indicate the presence of problems with the candles itself or the ignition system. Ideally, the discharge must be stable, and also have a saturated bright blue color. It should be noted that the color of the sparks on the spark plug may also change from reddish to white or yellow.

Moreover, more an important indicator It is not what color sparks on the candle should be, and the discharge power and the depth of the breakdown. In parallel, it is recommended in conditions of high pressure in the combustion chamber. For such an audit, there are special stands, since there are enough cases when there is a spark when the spark is used, but after screwing into the engine there are certain failures.

Read also

What does Nagar color indicate on the ignition candle, why the Nagar is formed in one or another color. How to clean the spark plugs from Nagara do it yourself, tips.

Signs of ignition candles malfunction. Estimation of the condition of the candle with visual inspection, methods of checking the spark plugs. Flip on the electrodes of the candle.

Spark plugs (SZ) installed in vehicles play a double role: flammifying the fuel mixture and remove excessive heat from the cylinder block. The power characteristics of the engine, its injectivity, fuel consumption, and, ultimately, the operational resource of the power unit is dependent on the proper functioning of these. But there is a candle and one more, "unlaspped" function about which experienced drivers know: Nagar on the ignition candles, which can indicate a particular engine malfunction. But first things first.

Why Nagar is formed

So it looks like a candle with a normal nagar

Spark plugs work in sophisticated conditions: In addition to the pressure, they are produced both temperature and chemical impact. Therefore, in time, deposits are inevitable. On the normal functioning of all systems and engine nodes, there is a pale gray raid on the SZ electrodes. At the same time, it is located evenly and has a small thickness. If the color of the deposits on the insulator and the electrodes are different, then it talks about the logs in the engine. By shadowing the nagar, you can "calculate" which motor system fails. How to do it?

Diagnostics of the engine as candlesticks

Nagar black

About how the motor works is to make the right conclusions after 15-20 and more than thousands of KM mileage it is impossible: the SZ turned out will not give comprehensive information. To get it, you need to screw the "rolled" (after 150-200 km) new spark plugs. Driving still as much, remove the SZ and inspect them for a shade of deposits.
Diagnose a malfunction when it appears not so simple. Nagar can manifest itself in 2 versions: each of them indicates a particular problem in the operation of the motor. It should be carefully considered the structure of deposits.

Black Nagar With Oil Tracks

It is usually formed on the thread of the SZ, its electrodes and is accompanied by characteristic features: at the time of engine start. This type of deposits indicates penetration into the combustion chamber of engine oil. The problem is related to:

• lounge, breakdown, wear of piston rings and (or);
• the destruction of the guide valve sleeves.

Candle ignitions Oil Nagar

Dry black flag

His formation on the electrodes speaks about the fuel and air mixture, excessively enriched with flammable. The "velvety" Nagar is formed for several reasons:

• incorrect functioning of candles associated, for example, with their wear or wrong choice of a calil number: As a result, the engine cannot dial the standard power due to a weak spark (the fuel does not combine completely);
• insufficient compression;
• incorrect;
• for injection engines in this case The fault of the pressure regulator is characteristic of a mixture too strongly: as a result, the consumption of fuel increases significantly;
• handing with air filter mud, which leads to a lack of air and, as a result, incomplete combustion of fuel, the remains of which are settled on the SZ electrodes.

Nagar with a red tint

Spark plugs with red naigar

Its appearance is associated with the use of bypass owner of additives for engine oil or fuel. Burning in the working chamber, they highlight chemicals, some of which remain on electrodes and threads. Red Nagar testifies to the entry into the lead additives or manganese. If the deposition is not removed, then the SZ will form a layer affecting the formation of sparks, reducing its strength. To eliminate the appearance of red Nagar, it is necessary to reduce the amount of additives used, or to abandon their use at all. In the latter case, it is recommended to completely drain the oil, gasoline and pour fresh fuel.

White Nagar.

Car Ignition Candle with White Nagar

White sediments can be two types. All the difference lies in the character of the sediment on the SZ electrodes.

Glossy White Nagar.

The shiny surface of the electrodes indicates the presence of metal particles in sediments. A similar phenomenon is quite dangerous for the motor and shows it on its regular overheating. Under the influence of high temperatures, except for candles, valves and pistons, which is fraught with premature wear are fraught. Typically, the cause of the formation of a white shiny plaque lies in the poor functioning of the engine cooling system (for example, an elemental shortage of antifreeze). There are other reasons:

• preparation of the depleted fuel mixture;
• air suction intake manifold;
• incorrect the ignition advance angle: the spark arises early or it is skipped;
• a candle type is selected that does not correspond to the manufacturer's recommendation.

When white sediments appear with glossy gloss on SZ, it is recommended to immediately diagnose the engine in a hundred and stop operation power plant Before eliminating the causes of Nagara.

White smooth matte sediment

His ignition candle formation is not a big danger and is associated with the use of low-quality fuel. Just completely replace it and do not refue to the well-proven gas station.

How to clean the spark plugs

SZ belong to category supplies, Therefore, from time to time they have to be replaced (on average, after 15 thousand km of run, platinum and iridium products pass and all 100 thousand km). Check the condition of the candles is recommended every 7-8 thousand km. If necessary, they need to be cleaned: it can extend the operational deadlines for about 5-7 thousand km of mileage. How to bring candles to working condition?

Mechanical cleaning

The simplest and fastest method implying the use of shallow emery paper and a metal brush. The latter is used first. The minus of this method is the scratches left on the electrodes and insulator, "thanks" to which the Nagar will pester faster and stronger.

It is not necessary to clean the sharp items: knives, flat screwdrivers, sewn, etc. Their use can lead to a violation of the electrode gap, or even the breakdown of the insulator.

Using sandblasting

It is often present in the set of equipment of many car services. The process is to process the electrodes of the candle with a strong jet of sand with a subsequent cleaning air with a compressor. Such a service is inexpensive and makes it possible to clean the SZ with the minimum damage for them (scratches). In the conditions of the garage, it makes sense to produce a candle processing through a regular drill. To do this, make a container with sainted small sand. Hold the SZ in the cartridge and, applying the reverse, twist it in different directions until complete cleansing.

Ultrasound use

Also, option: in this case, the method is similar to cleaning the injector when an ultrasonic bath is used. But it is worth noting that this method will give an incomplete result, since the nature of the contamination of the candles will not allow to completely get rid of Nagara.

Chemical cleaning

Usually car owners prefer to apply household cleaning products to help get rid of the kitchen and in the bathroom from lime-plating, rust. The method is quite effective and does not leave damage on the body of the product. To implement the procedure, prepare an old toothbrush or a rigid small brush and a small container with water. Further:

• pour water in dishes and dissolve the means in the proportion specified by the manufacturer on the label;
• immerse in the candle solution so that they are completely closed with the means;
• wait no less than half an hour;
• rosen SZ in clean running water, dry with a rag and blow on a household hair dryer or handle in the oven at the bottom possible temperature of 15-20 minutes.

It is not necessary to calculate the products on gas or dry by a construction hanger, warming up to relatively high temperatures. A similar "method" can lead to cracking of the insulator.

Cleaning in ammonium acetate

This method is also considered effective and inexpensive. It will take 20% solution of the above chemical, metal container, gas (electric stove), gasoline and rigid brush. Procedure:

• rinse candles in gasoline to complete degreasing;
• dry the SZ in the air without the use of the hair dryer;
• fill ammonium acetate into the container and heat up to 100 degrees (when working with this chemical, it should be remembered that his pairs are harmful to man, so take care of the good ventilation in the room);
• lower the candles into the solution for half an hour, maintaining a temperature of 100 degrees;
• pull out the SZ, clean them with a brush;
• rinse Product B. clean water And dry by a household hair dryer.

In conclusion, it can be added that a regular inspection of candles and their cleaning with a chemical method will extend the service life of both the products themselves and the entire power unit. But still the regular replacement of the SZ should not postpone until the last moment.