One of the main components of the cooling system (CO) is a liquid circulating in it. Once it was exclusively water. Today, in most machines, antifreeze is a composition that does not freeze under negative temperatures. However, it has a certain service life and requires periodic replacement. This is due to the gradual accumulation inside the hoses and devices of the cooling system of scale and salt sediments. So that the engine does not overheat and function normally, before filling the new antifreeze, it is necessary to make washing, even if there are no obvious signs of overheating of the motor. In order to do this, you need to know what to wash the engine cooling system, since not all means are suitable for this. For starters, let's deal with what it consists of.
How the cooling is arranged in the car.
Purpose of cooling system - protection power aggregate From overheating: In the operating block of cylinders (BC), the temperature in certain modes reaches 1900 degrees. Just only a part of the produced heat is used, the rest is outputting the subcarrane space. Cooling is air or liquid: the first option today it occurs infrequently, therefore it is worth considering the second type of system. Its main elements:
- radiator;
- a fan closed with a special casing;
- pump (pump);
- connecting nozzles;
- expansion tank.
In the running engine, the antifreeze circulates inside the BC on special highways: together they form a "cooling shirt". The refrigerant takes heat and transfers it to the radiator unit. After cooling, the liquid enters the BC, making a circle.
On the modern cars The refrigerant passes almost through all the main nodes not only the engine itself, but also attachments. As an example, you can bring throttle valve or carburetor. If you do not produce to the replacement of antifreeze or antifreeze on time, it can lead to, and its repair is not cheap.
Over time, antifreeze is contaminated and begins to perform his functions badly: it has to change it. But before that, it is necessary to rinse the engine cooling system correctly: otherwise unpleasant consequences are possible. For this operation, folk remedies are applied or purchased reagents.
Why wash the cooling system
As - cooling has its own resource. The liquid used (for example, water) is sooner or later forms a scale and precipitate that impede the effective operation of the power plant. Antifreeze does not create deposits of this kind, but this does not mean that its use does not bring problems. This composition, in time, begins to decompose, forming decay products that are settled inside the metal elements of CO. As a result, a corrosive plaque and layers of organic products are formed. It is worth noting that they will be the greater the lower the quality of antifreeze.
But this is not all - in the cooling system can fall:
- from outside: extraneous substances in the form of detergents, dust, oil;
- from the inside: pastes used in sealing gaskets.
There is a need to clean the cooling system. Tightening the time to carry out this procedure is fraught with serious consequences: In addition to the constant overheating of the engine, which reduces its resource, the thin tubes of the radiator are clogged: as a result, this notch spare part fails. How to determine what time to clean the cooling system?
Signs of pollution S.
As mentioned above, one of the main symptoms is an engine overheating. Moreover, this is not manifested immediately, but gradually: temperature when normal conditions The operation will slowly grow: the electric fan turns on more often and constantly accounted for antifreeze. The latter may occur in the case of coolant leakage. The reason for this may be:
- the rupture of CO pipes (most often in place of connection with the BC or elements of the cooling system);
- disorder of the tightness of the radiator;
- the appearance of cracks in the cooling shirt;
- trucking the cylinder head laying.
When the leak is strong, it can be determined visually. If the antifreeze "disappears" imperceptibly, it is enough to put a car on a flat place and bed at the bottom of the clean car. Lay the engine and leave it in mode idle move for a few minutes. If you could not detect streak, but you have suspicions, drown out the motor and leave the cards under the body for the night. It is likely that in the morning you will see from where the antifreeze is dripping.
When the engine cooling system is needed
Cleaning is outdoor and internal. In the first case, the cells of the radiator from dust, dirt, leaves flying insects are exempted. The regularity of the outer cleaning depends on the operating conditions and is performed as contaminants appear. As for the "indoors" of CO, it is better to wash the cooling system in the spring when frosts are no longer foreseen.
Some auto models are equipped with a special light bulb depicting the radiator. Its glow at the same time speaks of a reduced level of antifreeze and the need for its replacement.
Than rinse the cooling system
This can be done with the help of two categories of funds: special, implemented in automata, and folk, which can be used at home. Starting with the second, as less expensive and well-proven.
Folk remedies for cleaning the car
First of all, it is citric acid. Such formulations are particularly effectively working against rust. Therefore, citric acid makes sense to use if water was filled into CO. How to rinse the system? First prepare the tool: per liter of water 20-40 g of acid. If the cleaning was not made for a long time, then use 80-100 g of substance. Further:
- let the engine and warm it at least up to 70 degrees;
- mustle the power unit and drain the liquid to be replaced;
- fill the cooked solution and leave the machine for 6-8 hours (for example, overnight);
- drain the solution and appreciate it: with excessive contamination, the flushing repeat.
- when the solution becomes transparent, rinse the system - better distilled water;
- fill a new antifreeze.
Acetic acid
It acts exactly the same as the previous product. The proportions of the solution are changed: there will be 500 ml of acetic acid on 10 liters of water. The washing procedure is also different:
- warm the machine, muff and drain the liquid used;
- pour the solution and start the car;
- the engine is not jammed, wait 40 minutes., while carried out chemical reaction;
- drain the solution: if it is absolutely opaque, repeat the procedure until the fluid becomes clean;
- rinse S. boiled water or distillate;
- fill in advance purchased antifreeze.
Coca-Cola and Fanta
The first drink contains orthophosphorus, in the second - citric acid. In order to achieve better resultsSome auto owners replace antifreeze on Fanta and so ride (with positive air temperature) 1-2 days. Then you need to drain the product and fill with distillate. After a couple of travel days, drain him: if the liquid is dirty, the procedure repeat.
Coca-Cola for more than ten minutes to keep the system in the system, since orthophosphoric acid is in a drink negatively affects rubber and plastic elements.
Milk Acid and Serum
The first option is the most suitable. The problem is that it is not so easy to find the right amount of lactic acid. If you managed it, fill it into the system without diluting and pull a couple of days. Then drain, rinse the area of \u200b\u200bthe distillate and fill the fresh antifreeze. The second option is to use more available serum. In this case, comply with the following algorithm of actions:
- prepare 10 liters (better homemade cooking) and straighten it a couple of times through gauze;
- drain the old liquid and pour the serum;
- ride at about 50-60 km (no more than 1-2 hours);
- let cool power installation;
- drain serum and fill with boiled water;
- let the engine and let it work 15-20 minutes;
- drain the water and fuel the OS new antifreeze.
How to rinse the cooling system with special means
Today, auto chemical market offers a fairly wide range of cleansing funds, at the price of an ordinary car owner. All funds are divided into several types:
- Neutral. There are no aggressive substances here, therefore such compositions are used for prophylaxis.
- Alkaline. Ideal for the withdrawal of organic pollution.
- Acid. Used with serious contamination of the car cooling system inorganic connections.
- Two-component. This includes acids and alkalis: such funds are considered universal. With their help, it is possible to clean with rust, scale, organic matter and other substances.
Producing flushing of the cooling system, do not use two different means simultaneously - a chemical reaction may occur that will negatively affect technical condition Rubber or plastic details. And the last moment: it is not recommended to use household cleaning products like "White", "Mole", Fairy, Calgon, Mr. Muskul and their analogues - these products are mainly intended to fight fatty sediments.
The main task of the system is the coolant supply to nodes and parts heated when working. During the movement of the car podcast space Cocks with pebbles, sand, dust, insects, etc. Pollution accumulates accumulate in the highways of the cooling system, mixing with antifreeze. Due to clogging of nozzles, hoses, radiator channels, overall efficiency is reduced. the work of the DVS. The article describes how to rinse the engine cooling system properly to restore the bandwidth of its elements.
Causes of clogging of the cooling system
It often happens that after refueling the cooling system with fresh liquid, it quickly darkens, characteristic sounds appear in the radiator. This speaks about the contamination of the system highways, reducing its throughput. The quality of heat removal from engine working elements is worsens, power characteristics are reduced. vehicle In general (on average by 10%).
Dust accumulates in the radiator tubes, specific deposits are formed on the walls. The chemical composition of the scale is poured, depending on the type of coolant, fill in the system. As a coolant, water is most often used, antifreeze.
When using water, filled directly through the neck of the radiator, a layer of scale is formed in the warm season on the pipes. With the onset of winter frosts, water freezes, leading the system into disrepair.
Antifreeze - more efficient cooling agent, resistant to temperature drops ambient. However, over time, its composition begins to gradually decay into separate fractions. Due to the contact of the decay of antifreeze to the channel channels, it is clogged.
Consequences of insufficient cooling of the motor
As a result of the harmful effects of temperature drops in the engine running, on the inner surfaces of the hoses, nozzles, the cooling system tubes appears a thick flaw in the form of scale. The resulting layer has a low thermal conductivity, which counteracts the high-quality cooling of rubbing parts and engine nodes internal combustion. In the occurrence of deposits in the tubes, the process of heat exchange between the coolant and the power unit is disturbed, which leads to its overheating. Heat is not able to penetrate through the scale, which accumulated on the walls of the tubes.
Significant harm is also brought foreign particles:
- Dirt, dust.
- Metal chips.
- Clusters of small insects.
Small fragments, getting into the system together with the coolant, clog the highways. This leads to an accelerated overheating of the motor.
Air traffic jams can also cause engine breakdowns. When they occur, it makes it difficult to heat out from the formation zone of elevated temperatures. As a result of long-term operation of a car with air traffic jams, such expensive elements of the power unit, like cylinders, pistons, collectors, overheat and fail.
If the circulation is violated, the efficiency of the engine cooling system is reduced:
- non-uniform heat removal from high heat generation zones in idle mode;
- the occurrence of temperature jumps;
- incorrect readings of the temperature pointer sensor (the device arrow twitches);
- tosol boiling;
- failures in the thermostat;
- insufficient heat intake reduces the comfort of stay in the cabin;
- strengthening the fogging glass limits visibility, it leads to an increase in the likelihood of creating an emergency while driving.
Tip: If the motor on the go unexpectedly stalled, experienced drivers recommend checking the cooling system.
It is noticed if you do not perform regular cleansing and washing the cooling system, parts and engine nodes are deformed from overheating, and the motor quickly fails. Therefore, among car owners, the question often arises than you can flush the cooling system.
Funds for washing the cooling system
Among the most affordable funds, water ranks first. However, it is known that various chemical compounds that form scale on the walls of pipelines are dissolved, which causes the need for repeated cleaning system. In order to avoid complications, experienced car owners are recommended to use distilled or boiled water.
If the question occurs, the better to wash the engine cooling system, it is recommended to learn the proposals of the car market. The trading network offers special cleaning products manufactured by the chemical industry, in a large range. The proposed drugs qualitatively clean the elements of the car cooling system. Before buying the most suitable means, it is recommended to familiarize yourself with the existing types of products, since substances with various chemical composition are used to destroy pollution.
By the impact method, cleaning preparations are divided into several categories:
- Neutral.
- Acid.
- Alkaline.
- Two-component.
The composition of neutral liquids does not include aggressive substances. In this regard, they have less efficiency, compared with other analogues. Their use is recommended for prevention.
In the manufacture of acid action substances, manufacturers do not include acid in their composition at an undivided form, since these compounds have increased aggressiveness. The flushing fluids of the acid medium is neutralized and derived from formation in the form of scale and other deposits of inorganic origin.
Similarly acidic, alkaline substances are also not found in concentrated state. They are used to remove organic contaminants.
The composition of two-component drugs includes the compounds of the acid and alkaline medium. With the gradual effects of these substances, the contamination of all types is perfectly removed from the cooling system.
Tip: It is not recommended to pour two drugs of various action at the same time. Incorrect combination of substances with an acidic and alkaline medium will not bring the expected result. Liquids mutually neutralize each other, can harm, cause additional malfunctions. It happens that when using a cleaning agent of increased concentration, parts made of plastic and separate species Rubber, come into disrepair.
How to rinse the engine cooling system by distilled water with their own hands
This procedure is carried out after cooling the engine in the open air in the summer, or in the garage room in the winter. First you need to get rid of the exhaust fluid. Actions are carried out in the following order:
- install the machine on a flat site;
- open the hood cover;
- place a tank for collecting used antifreeze;
- unscrew drain plugs (in the engine, radiator);
- wait for a complete drain of liquid.
Interesting: Appearance The exhaust material will tell about the overall state of the entire system. Especially need to pay attention to the presence of characteristic divorce in the liquid motor oil, as well as foreign particles in the form of metal dust, rust, scheduling fragments, etc.
Clearing the cooling system using distilled water is considered the most affordable economical method that occupies the minimum amount of time.
Important: Simple water from the water tap is not recommended for flushing the cooling system. In the absence of distilled water in the required quantity, it can be replaced with boiled (boiling time should be at least 20 minutes).
Work algorithm:
- Pour the prepared water through the neck of the radiator.
- Run the motor in idle mode.
- Wait 20 minutes.
- Move the engine.
- Merge fluid from the system.
- This procedure is repeated several times until pure liquid starts.
How to wash the engine cooling system with citric acid
If a large number of small particles are noticed in the exhaust material, the water is best for washing acidify. As an additional agent, the acid (acetic, lemon) is recommended. To increase the efficiency of this method, you can increase the percentage of acid in the solution and create a temperature in the engine from +60 to 90 ° C.
The method of using the resulting solution is no different from the method described in the previous section.
What means you can rinse the engine cooling system from rust
The antifreeze includes special additives that improve specifications Coolant. However, after the completion of the operational period, this substance is gradually decomposed on separate chemical components. The decomposition products accumulate on the tubes and metal parts of the system, in the form of harmful salt sediments, speeding up the oxidation processes. Rust stains - the main enemy of the cooling system and the engine as a whole.
Along with scale, organic compounds, rust helps to reduce the thermal conductivity of the tubes. The water pump delivers fluid in insufficient quantity, for this reason, the likelihood of the thermostat stops with subsequent engine overheating increases.
Only a thorough removal of rust, deposits, scale and replacing antifreeze will be removed from the damage due to overheating.
Before the direct washing of the system from rust, it is recommended to analyze the state of the coolant and the system as a whole. The degree of contamination of antifreeze is estimated at the following factors:
- the content of flakes in the liquid;
- degree of transparency;
- changing shade;
- the presence of extraneous impurities.
ATTENTION: The liquid located in the tank has a high temperature and when the system is deployed, splashes outward. In order to comply with safety, before unscrewing the tank cover, it is recommended to wait until the motor will cool.
If it is seen that the coolant is painted in a dark brown color, this indicates a rust cluster in the system. At the same time, it is necessary to carry out a non-ordinary simple, but a deep cleansing of the system, with the affect of such nodes as:
- Cooling shirt.
- Heater radiator.
- Details channels.
If distilled water is used to purify rust with lemon adding, the actions described in the previous sections are repeated. To increase the efficiency of the procedure, the solution is left in the system by 7 - 10 hours. Throughout this time, a multiple engine warming up to operating temperatures. After removing the detergent, the cooling system is thoroughly washed with distilled water.
Than rinse the engine cooling system from oil
Special chemicals Designed to remove contaminants in a wider range. With the help of such compositions, not only the scale and rust, but also deposits in the form of fats and other organic substances are well eliminated.
Drivers often use a special sealant to eliminate the leaks of antifreeze. In this case, it is noted that the effect of this fund is short-term. At the same time, the work of the entire system is worsening. To the question than washing the engine cooling system from the sealant, the answer is simple: you can use the methods described above, but only with the addition of special branded flushing, for example, from Liqui Moly.
Sooner or later, all car owners face the problem of deteriorating the quality of the cooling system and the need to clean it.
Signs of this can serve:
- raising temperature on the sensor;
- fan working without interruptions;
- problems in the work of the pump;
- frequent "enforcement" of the system;
- bad work "stoves".
A frequent reason for the occurrence of these problems may be clogging of the cooling system itself (CO). Even if antifreeze or antifreeze was always used, then over time, the decomposition products of these liquids accumulate, which can block the cells of the radiator and are deposited on the hoses and sockets of the system.
As a result, the coolant movement is worse, which additionally loads the fan and pump. To avoid these problems, it is necessary at least once every 2 years to make complete cleaning of CO.
Cleaning CO is carried out both external and internal.
External cleaning of CO implies washing or purging the ribs of the radiator from the cluster of the fluff, dirt, insect residues. Flushing is carried out under a low pressure in order to avoid mechanical damage to the cells of the radiator. In addition, purge and wip the blades and the fan housing are produced.
The purpose of the internal purification of CO is to eliminate scale, rust and antifreeze decomposition products from the system. Internal cleaning with better entrust to professionals on special stands. But often lacks time or finance to visit a hundred.
For self-cleaning with auto chemical manufacturers, special flushing agents have been developed. They can be divided into four categories:
- acidic;
- alkaline;
- two-component;
- neutral.
Skip and rust are removed by acid flushing. The decomposition products of cooling liquids are cleaned with alkalis. Two-component flushing are used for deep cleaning CO and affect all types of contamination. Acid and alkaline fluid flooded alternately.
In neutral flushing, catalysts are used, dissolving all contamination to a colloidal state, eliminating clogging of the radiator cells of the decay. The convenience of applying neutral flushing is that they are simply added to antifreeze and do not stop the operation of the car.
Using industrial washing CO, it is necessary to carry out all stages of work according to the instructions. Failure to follow the instructions can lead to deplorable results.
Folk Methods for washing the cooling system
There are folk methods for cleaning CO. Since they are less expensive, they are especially popular. However, it is not necessary to forget that when using such funds it is necessary to comply with extreme caution and safety techniques, since the cleaning compositions include acids and alkalis.
Washing with citric acid
Solution citric acid Allows you to clean the nozzles and cells of the radiator from insignificant rust. The citric acid solution is manufactured in the calculation of 20-40 grams of acid per 1 liter of distilled water. For large rust clusters, the concentration of the solution increases to 80-100 grams per liter of water.
Procedure for Cleaning Lemon Acid
- Drain antifreeze with chilled engine and radiator.
- Pour the prepared solution to the lower mark in the expansion tank.
- Bring the engine to bring to operating temperature, not showering 10-15 min., Leave for 6-8 hours (preferably for the night).
- Fully drain the solution.
- Rinse with distilled water. If the fused water is dirty, wash the flushing.
- Pour fresh antifreeze.
Washing with acetic acid
Acetic acid solution is made at the rate of 50 grams per 1 liter of water. The washing order is the same as when using citric acid. The running engine is better to hold 30-40 minutes.
Waskening with serum
- Prepare 10 liters of serum (better home).
- Strain serum through several layers of gauze to remove large particles.
- Fully drain the coolant.
- Pour fluid serum into the expansion tank.
- Take the engine and drive at least 50 km.
- To drain serum is only hot, in order to avoid sticking the mud to the walls of the nozzles.
- Cool engine.
- Rinse thoroughly with distilled water until the fluid was completely clean.
- Pour a new antifreeze.
Cleaning radiator caustic soda
Important! The use of caustic soda is possible only for washing copper radiators. Aluminum radiators rinse soda is prohibited.
To remove dirt from the radiator, a 10% solution of caustic soda is used.
- Remove the radiator from the car.
- Heat one liter of prepared solution up to 90 degrees.
- Pour hot mortar into the radiator and keep there for 30 minutes.
- Drain the solution.
- To wash the radiator alternately hot water And blow with air with a slight pressure in the direction opposite to the movement of antifreeze. Flushing to carry out before the appearance of pure water.
- Install the radiator on the car, and connect nozzles.
- Pour fresh antifreeze.
In the absence of distilled water, you can use simply boiled water.
The process of periodic cleaning of pipes and components of the cooling system in the engine is called washing. Essentially washing the engine is the same procedure as well as timely replacement Oil I. air filters. If you do not promote the cooling system on time, then with the next replacement of the coolant inside the valves, scale and dirt will be accumulated on the tubes. At the same time, all channels in the radiator and nozzles will inevitably be born during the operation of the vehicle. As a result, it may be necessary to replace the pump and the adjustment of DPDZ. In the worst case, you will have to change the entire cooling system.
How is the engine clog?
Many of the car owners are faced with the following situation - the cooling fluid has just filled into the engine gradually acquires black. This is due to the fact that when pouring, the pure fluid passes through the dirty tubes of the radiator, as a result of which changes the color and pass the remaining clean hoses and engine nozzles. As a result, the engine power drops to 10% and characteristic noise in the radiator appears.
It should be understood that the radiator is contaminated not only by dust, but also specific sediments. The composition and structure of these deposits depends on the coolant used by the driver. In 90% of cases, the cooling system is poured:
- Water. And so far, individual motorists pour water directly into the radiator. In the summer months, this leads to the formation of scale on the tubes, which leads to clogging of the entire system as a whole. In winter, the water in the radiator turns into ice cubes, which leads the engine into disrepair.
- Antifreeze. Antifreeze effectively cools the engine (especially in winter time), But at the same time, after 1-2 months, its gradual decomposition begins. Disintegration products fall together with liquid inside the cooling system and clogged nozzles.
Causes of insufficient engine cooling
- The appearance of an extensive plaque on the inner surface of the walls of highways and radiator nozzles. Flap on the tubes appears in the process of coolant oxidation under the influence of a constant temperature difference in the engine. Since the raid in the hoses has low thermal conductivity, the engine cooling does not occur. The heat exchange between the engine and tubes with liquid is strongly limited, and the heat simply does not pass through the resulting layer of scale.
- Pollution of the inner nozzles of the radiator dust and small metal particles. When dust appears in the cooling system, the heat exchange with the engine is completely violated. In turn, small metal particles will contribute to the rapid overheating of the engine.
- Appearance air traffic jam Inside the system. When the air traffic jam in the tubes, the coolant cannot fully circulate on all highways.
Tip: If you notice that the engine at full speed suddenly stalls, probably the problem lies in the engine cooling system.
As a result, if you don't have your own hands or in the service station to wash the cooling system, in a couple of years you will have to completely replace the engine.
How to rinse the radiator?
Washing the cooling system in the engine is carried out by the following methods:
- With distilled water;
- Using acidic water;
- Apply special means For flushing cooling systems.
Tip:choose a specific means for cleaning the radiator depending on the state of the machine. If the tubes are all clogged with screaming, and even the shock screwdriver does not help to knock it down, then use special solutions from the store.
During the work, a number of requirements should be observed:
- In winter, work should be carried out in the warm garage, and in the summer - in the fresh air.
- Before starting work on cleaning tubes and hoses, you need to drain the entire antifreeze.
- If the engine is still hot, then it is necessary to give it the opportunity to completely cool.
- The machine should stand on a flat surface.
- In order to protect hands from contact with hot engine elements, be sure to dress protective gloves.
- Before the plums of old antifreeze, be sure to install a small container under the structure of the radiator.
- Remove all drain plugs, and start dragging antifreeze first from the engine, and then drain it from the radiator.
Washing engine and radiator distilled water
The most inexpensive but at the same time effective method Washing systems with a slight contamination of the tubes is distilled water. The whole process will consist of 3 stages:
- It is necessary to pour distilled water directly into the radiator housing.
- Next, you need to start the car and give it to work in idle mode for 15-25 minutes.
- Then be sure to muffle the car and drain all the water from the nozzles.
These stages will need to repeat several times with an interval of 20-30 minutes. At the end of work, water in the cooling system should remain clean. Most often, distilled water is used to wash the engine in a recently purchased machine or with minimal contaminants of antifreeze.
Washing hoses and cooling tubes in the engine acidic water
If in the previously coolant fusion you found traces of scale or decay and corrosion products, then to clean the system, water must be "acidified". To achieve the task, you will need to prepare a small amount of weakly acidic aqueous solution. The composition of the liquid includes samples:
- Citric acid;
- Lactic acid;
- Acetic essence;
- Caustic soda.
The flushing procedure consists of the following operations:
- We prepare a weakly acid solution from the specified ingredients and pour it into the cooling system.
- We start the engine and leave it to work for 15 minutes.
- Next, we drag the engine, and we do not drain the fluid from the radiator. In order to move the whole scale, the solution should absorb deployment (takes it a few hours).
- We drag the solution of acidified water in 2-3 hours and repeat the specified operations again.
In total, the flushing of tubes and hoses takes about 5-7 hours. At the end of the work, the residue of the acidic solution must be removed from the radiator by washing using distilled water.
It is enough to spend on this procedure day, and for a long time you get rid of scale in the radiator. However, this method has its drawback - if you add too much acid, it absorbs not only in scale, but also in the hoses themselves. Subsequently, acid is simply the relief of the surface of rubber and plastic components of the engine, and they will have to be completely changed.
Tip:after washing the cooling system with acidic solution, be sure to check the tire pressure of the car I.
Flushing of the radiator and the engine with the help of purchased tools
Now modern products of the chemical industry can effectively eliminate any scale and contamination formed in the engine. As a rule, all purchased tools are conditionally divided into 4 types:
- Acid-based agents;
- Alkaline and salt solutions;
- Two-component solution;
- Neutral cleaning agents.
Since when cooled the engine, scale and decomposed antifreeze products appear, the cooling system must be cleaned either only with the help of acid or only with alkalis. The universal cleaning agent does not exist, because acidic and alkaline solutions are neutralized among themselves. That is why special purchased solutions are produced either on an acidic or alkaline base.
However, there is a so-called two-component flushing solution, which acts on the cooling system in 2 stages: first the engine and the radiator is washed with the first component, then with the help of the second. In turn, neutral solutions are based on the operation of catalysts and have a neutral pH. Most of the neutral means for cleaning the radiator are manufactured by the plant as a kind of additive to antifreeze or as a special concentrate for coolant.
A feature of the application of special purchased solutions is the need to pour them into the tank 1 time and do not think about the condition of the cooling system for 1000-2000 km. Such means are rinsed all the above contamination, while dissolved precipitated and precipitate to colloid states that do not contaminate the small tubes of the radiator and the engine nozzles.
Video: Washing system cooling
Radiator grille - a kind of mud: everything that passes through it, settles on the radiator. And the radiators in the car can be somewhat - at the indemnial cooler (intercooler), steering hydraulic power steering, conditioner capacitor. The radiator of the engine cooling system is always installed last in the direction of the air flow, it means that it is worse than all blown by the incident air flow. And often precisely because of it, water procedures are underdeveloped. After all, other heat exchangers in contamination only partially lose efficiency, and the engine cooling system is more reminded by a two-position toggle switch: "Works normally" and "Karaul, a boiler!".
The engine radiator is contaminated not only outside, rust and scale particles often accumulate in its tanks, as well as aluminum parts oxidation products. And if you thought about washing the radiator outside, it makes sense to combine it with the replacement of the coolant. All cars for the replacement of fluid from all cars are different, but, believe the experience, with a mileage of 80-90 thousand kilometers to update it does not prevent it.
Consider ways of cleaning radiators. We will act, how did the fathers of dialectics bequeathed, from simple to complex.
As easy as pie
The easiest thing is from - they have one radiator. It is possible to rinse it yourself, and not even removing from the car. For example, from the hose in the country. Or bothering the sink. The water pressure should not be powerful so that thin heat sink plates will not be brought. If this happens, the radiator almost ceases to pass through itself air and, accordingly, cannot effectively cool the liquid.
Before water procedures, it is desirable to install a plastic film screen behind the radiator: it blocks the path of water and dirt flying on drive belt, generator and candles. At the same time, it is important not to pour the fan electric motor. He is not afraid of splashes, but should not be directed directly on him under pressure.
In company
If the engine cooling radiator is installed in the package with other radiators, its flushing without dismantling is unlikely to give the desired result. The fact is that the jet after washing the first heat exchanger inevitably loses its strength - and the effective cleaning of the second radiator will not work. In this case, you can try to wash radiators from different sides: the condenser - with an outer, and the radiator of the cooling system is internal. But according to the experience I know that there is sometimes something like a felt blanket from a poplar floss between two heat exchangers from a poplar fluff and other materials. Sometimes it is possible to get rid of small blood by dismantling the radiator grille (on those cars where it is removed separately from the bumper). It will give the opportunity to wash the heat exchangers without. And then, tilting the engine cooling radiator and disconnecting it upper fasteners, Clean the space between the radiators.
The most difficult but most effective method Clear the engine radiator - to completely dismantle it. To do this, you will have to disconnect and remove the electric fan assembly with the casing, as well as disconnect the heat exchangers of the engine and air conditioning. The conditioner capacitor is more difficult with the condenser: after dismantling, you will have to register the refrigerant system again. Therefore, the capacitor is trying to simply fall aside and flushing, going around without depressurization of the air conditioning system. At the same time, the removal of the engine radiator recommended to be cleaned not only outside, but also inside. For one hundred percent success, it is necessary to drain the cooling fluid from the system and rinse clean water All cooling contours. This will increase the efficiency of the heater, since the dirt accumulates in its heat exchanger.
For different machines The cooling system radiator extraction method is different. In most cases, it is necessary to remove front bumper and a radiator grille, as well as dismantle the engine protection or plastic mudguards. Some cars under the bumper there is a beam-amplifier, which is welded to the front ends of the spars, which complicates access to radiators. In others, it can be dismantled, unscrewing only a few bolts, which facilitates access to heat exchangers.
If you do not decide to wash the radiator on your own, you can trust this work by professionals. In this case, the officials will act on the full program - with the removal of the radiator, but the amount will be asked considerable. For example, the owner of the mid-sized crossover in Moscow will have to pay around 12 thousand rubles.
Unofficial services specializing in vehicles of one brand usually evaluate their services somewhat lower. More affordable offers of garage masters, but quality is often appropriate. Wash on the car wash Shot Radiator will cost 100-300 rubles.
