What to rinse the car cooling system. How to rinse the car engine cooling system? "Normal heroes always go around"

21.11.2019

According to the regulations, the car washing the radiator should be carried out annually in the spring. However, depending on the number of heat exchangers used by the cooling liquids and operational features of the car, emergency cleaning of the heat exchanger is necessary. To do this, you should know signs of clogging, ways to clean and types of detergents suitable for this.

Construction of car radiators

The heat exchanger of the cooling system of the machine passes through itself antifreeze, with which the excess thermal energy is removed from the engine. The fluid should be cooled due to the high thermal conductivity of the radiator structural material (copper or aluminum alloy) and constant by blowing air, for which this node is made directly to the machine bumper.

On the other hand:

all dust and dirt falling precisely on the heat exchanger grille, cleaning the radiator may be damaged by a mechanical random stone;
when driving honeycombs, the thermal conductivity of the structural material falls;
from the inside the tubes are clogged with scale and contained in antifreeze materials, it is necessary to clean the radiator with a special fluid.

In modern cars, in addition to the engine, cooling fluids are circulated in the radiaries of the stove and air conditioning. Therefore, for each of these nodes, washing the car's radiator with their own hands, and different ways. The easiest is the outer wash with a high pressure apparatus.

Signs of decline in heat exchanger efficiency

Since antifreeze reduces the temperature inside the heat exchanger exclusively due to air cooling, There is a dependence of the effectiveness of its work on the time of year, or rather the ambient temperature of the air.

Planned flushing of the engine cooling radiator is because it is carried out in the spring, which allows you to get rid of impurities inside the system before the hottest summer season, when heat loads reach their peak.

Symptoms of a decrease in the efficiency of the heat exchanger for the driver are:

increased fan speed and its frequent switching on;
problems with stove and climatic equipment;
tableless antifreeze temperature sensor;
inertness of the system on the signals of the row;
interruptions in the work of the pump;
uneven heat exchanger heating (hot upper nozzles, cold lower part).

In any of these cases, the automotive radiator is washing as the most budget version of the problem. Outdoor washing The hundred is vital in the presence of any number of dirt, dust, herbs that scored midges.

ATTENTION: Installation from the inside or outside the grid of the radiator of the protective mesh screen by 90% solves the last problem.

Popular Cleansing Tools

In specialized stores, a means for high-quality flushing of the radiator is represented by a wide range. However, "Folk" methods and funds are often used to reduce repair budget. It should be remembered that not all of them are harmless to copper and aluminum, of which heat exchangers are made.

Folk

If budget cleaning is produced, the radiator is filled folk remedies:

three-axle carboxylic acid - flushing of the radiator from the inside with citric acid is effective for prophylaxis, but it is not possible to remove serious blockages, it is recommended to pour it for 3 days, then rinse the system with distilled water until it starts to merge clean fluid;
Fed is the basis of the same citric acid, but in smaller quantity;
serum - weakly concentrated lactic acid, is poured only after filtration through the gauze, after 50 km of the mileage merges in the hot state, washed with boiled water or distillate;
the caustic soda is caustic, only copper heat exchangers can be cleaned, pre-removed from the car, with disconnected pipes, is poured on ½ hours, washed with boiling water for 40 minutes, then frozen by air;
tools for cleaning the sewage - Washing of a car with a radiator is allowed only for copper heat exchangers, aluminum is extended by sodium hydroxide after 15 minutes, the radiator will have to be changed entirely;
saltic acid - a concentration of hydrochloric acid is allowed to 3% maximum and only for copper heat exchangers.

In principle, the car owner will help the table of flushing fluids for automobile units from different structural materials below:

ATTENTION: The appearance of a foam from the radiator indicates a caustic reaction with internal deposits, which is a normal effect for this cleaning method.

General principles when removing from narrow channels of third-party deposits are:

when we rinse the system from dirt, you need to be prepared for the fact that these sediments could partially block small cracks, pores and holes, can "flush" pump and separate areas of the radiator;
if the system, at least once, tap water was flooded, its acidity could be increased, which negatively affects the places of soldering by Tin, while even special additives in antifreeze are designed to protect tin.

Milk acid can not be compared in aggressiveness with caustic soda, however, this substance softens rust from the inside is better than all other products. The only problem is its absence on store shelves, because of what motorists have to make serum independently.

Special fluids

For external cleaning of the automotive radiator, special sprays in the canopy are considered the most effective. However, they are twice as expensive than similar products for the engine, and the composition is practically no different. Therefore, the engine is quite suitable for washing with a limited repair budget.

ATTENTION: Washing of a radiator car without removal by 30% is less effective in comparison with the cleaning of the heat exchanger, dismantled from the cooling system of the machine, and, among the same means.

Kuhler-Reiniger - Manufacturer Liqui Moly., aggressive alkalis / acids does not contain, is considered a universal preparation for aluminum and copper heat exchangers;
Hi Gear - divorced in water, poured for 7 minutes, only in the warm season;
ABRO R Flush - is a corrosion inhibitor, poured for 10 minutes;
Pingo - budget German;
LAVR - in the composition there is a corrosion inhibitor.

Choosing a liquid for the internal cleaning of the heat exchanger, the factors should be taken into account:

alkaline tools cope exclusively with the organic;
acids dissolve inorganic products;
neutral liquid is more suitable for prevention;
two-component chemistry (acid + alkali) are outlined almost all compounds;
however, two different means should not be used at the same time, if you are not a car chemical manufacturer.

For example, the domestic laurel, removing the problem of deposition of scale and deposit deposits, further improves antifreeze resource by 30%. And the American High Gier carefully refers to rubber parts of the system, which allows not to remove the heat exchanger during cleaning.

How can I wash?

There are a number of "folk" drugs, which, in principle, cope with the removal of deposits within the heat exchanger, can harm:

when cleaning the Coca, the orthophosphoric acid contained in the drink will remove most chemical compounds, but carbon dioxide and dissolved sugar will result in problems;
Fairy does not cope with motor Oil outside, dramatically increases labor costs when pouring inside the heat exchanger, since 10 - 20 buckets of water will be required to remove all foam;
White contains sodium hypochlorite, corrosive aluminum alloys, the corrosion rate increases with an increase in temperature;
fluid Calgon and similar substances (for example, Tiret) are removed from the water supply line, but is almost useless for car cooling systems;
a mixture of soda, citric acid and vinegar in proportion 2: 1: 1 is capable of corrosive rubber seals, therefore not recommended by specialists.

In the extreme case, you can pour Coca-Cola for 10 minutes maximum, then rinse with plenty of water. White is contained in some cleaners (for example, in Mr.), so first it is necessary to study the composition of the tool that will be used.

Washing technology

The general principles of cleaning the heat exchanger machine for the user are:

ideally, it is better to visit a hundred, having a special stand for washing radiators with adjustable temperature and head circulation treatment;
the heat exchanger must be cleaned from the inside and outside, it is best to dismantle it before that;
however, the old antifreeze will have to be replaced with a new coolant;
therefore, the service will cost half the cost of a new radiator, if not more.

For example, spare parts for VAZ are quite cheap, it is easier to replace the heat exchanger entirely or make a flushing in the garage. To reduce repair time, it is better to serve all the radiators (DVS, air conditioning and heater).

From the inside

Cleaning the cooling system without dismantling the heat exchanger is made by technology:

drain of antifreeze through the bottom stop;
washing with boiled or distilled water;
pouring detergent;
washing with water;
pour antifreeze and removal of air.

However, when using folk remedies, the liquid remains in the cooling system for several days. Only after that it merges for washing and filling the heat exchanger with antifreeze. When using some drugs, it is enough to start the engine for several minutes / hours.

It is much more efficient to clean the cooling system when the heat exchanger is removed. In this case, the radiator can be "shaken", tilt at different angles to merge from it, as much as possible sediment can be.

Outside

When processing the radiator, the other technology should be used:

ensuring access - if the washing of the automotive radiator is made with their own hands at the place, without dismantling it, should partly disassemble the bumper, the grid or remove them entirely;
foam application - spray spray from the heat exchanger on the manufacturer's instructions;
flushing - foam is removed together with soluble mud with a ferry radiator, the nozzle must be adjusted to the slit jet.

ATTENTION: water under pressure can damage the cells of the heat exchanger, so the jet should be located at a right angle to the plane of the radiator, beat into the space between the plates parallel to them.

Radiator air conditioner

Since the air conditioner heat exchanger is built into the system radiator cooling in DVS Or is located next to him, there is no problems with cleaning the owner. The washing instruction is absolutely identical to the above technologies. Makes regular cleaning radiator more maintainable and increases its operational resource.

Radiator heater

In all heat exchangers, the car circulates the same liquid. Therefore, without removing the heat exchanger, its individual clearance is impossible physically:

the flushing mixture is poured into the general system;
rinsed it entirely;
fill antiprooms completely.

To rinse the heat exchanger of the cooling system of the stove in place individually, it is disconnected from the pipes of the general system and collect in the scheme:

both hoses from the heater radiator are stacked in a bucket;
capacity is filled with detergent;
the incision of one hose turns on the pump with power from the battery.

After that, the cleaner circulates in a small circle of heat exchanger - a bucket, like on the bottom photo.

After washing with distillate or boiled water, the heat exchanger is turned on into the general system, which is filled with the coolant for further operation.

Due to the small sizes of this node after removal, it can be washed in the bathroom, adjusting the temperature and water pressure, and, in both directions.

Thus, even without a special stand, the radiators of the air conditioner, the engine and the heater can be rinsed by folk remedies or special cleaners with their own forces. Enough to know what connections in detergent There should be no technology without removing and after dismantling the heat exchanger in all the details given in this manual.

If you have any questions - leave them in the comments under the article. We or our visitors will gladly respond to them

The process of periodic cleaning of pipes and components of the cooling system in the engine is called washing. In essence, the engine washing is the same procedure as the timely replacement of oil and 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), but after this 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.
The appearance of the 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;
Applying 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 everything drain plugsAnd 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 mode idle move 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 merge the solution acidified water After 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

Most manufacturers recommend replacing the coolant and wash the system at least once every two years. If you do not do this on time, the engine begins to overheat, which leads to the emergence of faults, and in some cases even to the failure of the power unit.

In order for such problems, it is necessary to identify the emergence of contamination of the cooling system in a timely manner.

When needed washing knots?

Before selecting a means for washing the radiator of the engine cooling system, it is necessary to determine if the procedure is needed at all. As mentioned above, cleaning is carried out at least once every two years. But, sometimes, the need for flushing arises somewhat more often. The following symptoms will serve as signs of this:

The engine is constantly overheated;
Pump works badly;
The engine cooling fan operates at elevated circulation;
There are problems with the work of the stove.
With severe pollution, the coolant boiling is possible.

If these features are manifested, it is necessary to drain the coolant. Traces of rust, dark color, fat stains - these are signs that you need to urgently rinse the engine cooling system. In this situation, the use of acidic (alkaline) solutions or specialized agents will be required.

In case the fluid has a light shade without signs of serious contaminants - flushing can not be carried out or limited to the use of boiled or distilled water.

Engine cooling radiator: how to rinse

When the need for cleaning is installed, you need to select the tool to be washed. Here are some of the most popular options.

Washing the cooling system with water

Perhaps the most affordable and inexpensive liquid for washing the engine cooling system is ordinary water. Of course, it must be purified (it is better to use distilled water, or if it is not, boil the usual for 20 minutes).

Before washing, you need to prepare a car. This is done like this:

The car is put on a flat surface and is left for a while (it is necessary to make a motor cool);
The hood opens and fixed;
Under the radiator is the container for draining liquid;
Drain plugs are turned off, and antifreeze merges from the engine and from the radiator.

Directly cleaning the nodes is quite simple. First, the washing fluid for the engine cooling system is poured into the radiator. Next, the motor starts (it should work for 15-20 minutes). Now you can merge water. If it is muddy and dirty - you need to repeat the flushing (you may need to do it several times).

Acids for washing cooling systems

Talking about the means for flushing the engine cooling system, it is impossible not to mention different acidic compositions. Perhaps this is one of better options Cleaning. There are a number of acids that can be used in the car:

Lemon acid

As is known, citric acid is an excellent solvent. If you need to clean the cooling system - it is enough to dilute the substance with water and pour the mixture into the car.

Important! A flushing solution must have a weak acidity. Most motorists dissolve citric acid in water at the rate of 1:50.

The most efficiently, this solution operates at a temperature of 60-90 ° C. Therefore, after the fill, the engine is started and warming up. After some time of work, the liquid merges. After that, washing with water (similarly described above).

Mixing 5 liters of water and 1 kilogram 36% of lactic acid, you can get another efficient engine cooling cleaner. Before pouring into the car, the solution is heated to 30-40 ° C. After warming up the motor operating temperatureThe mixture is drained, and the cooling system is washed with water.

Dairy serum can be used as lactic acid. It is great for cleaning systems. domestic cars (For better cleaning, you can travel by car for several hours), but with foreign cars should be more careful, although many owners have already experienced such a way and no complaints have caused.

Hydrochloric acid

If the question is about to effectively rinse the engine cooling system - nothing compares with hydrochloric acid. At the same time, with all its effectiveness, it can be extremely dangerous for engine performance. The solution used should contain no more than 2% of this substance.

After cleaning, the flushing mixture merges. Further, as in the previous cases, water is poured. With the final flushing into water, you can add an additive that will create a protective film.

Coca Cola

Perhaps one of the most unusual solvents than washing the engine cooling system from scale is quite efficient - it is Coca-Cola. All because the drink includes orthophosphoric acid.

Important! The concentration of carbon dioxide in Coca-Cole is very high, so it is necessary to remove gases before using the liquid. Also, there is a lot of sugar in it, which himself can clog the system. To avoid this, you can re-clean soda.

Alkaline solutions

Was it better to wash the engine cooling system, but not an alkaline solution? As such a cleaner, you can use soda (food or caustic).

If after draining in antifreeze there are oily or fat stains - to clean the cooling system, the soda is best suited. Flushing is carried out as well as in previous cases: the solution is poured instead of coolant, and the car starts for a few minutes. Next, flushing with distilled water.

If the choice fell on the caustic soda - it is necessary to pay attention to several important points. The mixture is made at the rate of 1:20 (the soda is dissolved in distilled water). In this case, the tool is not recommended for cleaning aluminum parts. Ideally, before using the cooling system cleaner, the radiator should be removed.

Specialized flushing composition

Many motorists believe that the best flushing of the engine cooling system is specialized means. You really can agree with that. With a strong contamination of the cooling system, many substitute solutions are unlikely to be able to fully clean all nodes (especially if the used car is clean). In such a situation, it is better to use factory washing fluids.

The cost of the solution usually does not exceed 100 rubles. The liquid is sold in a concentrated form, so it must be brewed with water (the manufacturer itself indicates the proportion). Thus, one package is enough for several procedures at once. The cleaning process is not particularly difficult, so the flushing can be carried out independently.

Specialized funds do not have aggressive substances that can adversely affect the performance of the parts of the car. In addition, after using the solution, it does not require a re-flushing system of the cooling system.

All purchased flushing fluids can be divided into several types:

Acidic;
Alkaline or salt;
Neutral (negative impact on the car system minimally);
Two-component (flushing is carried out in two stages).

As in the case of self-preparation solutions, each type of fluid is more suitable for eliminating a certain type of contamination. Many mixtures simply poured into the tank, after which the motorist does not need to think about cleaning for 1000-2000 kilometers.

The engine cooling system allows motor assemblies to maintain a working condition for the maximum amount of time. Drivers are well known that from time to time it is necessary to change antifreeze, which loses its properties in 2-3 years or 30-45 thousand mileage kilometers. Provided not only full replacement Coolant, but also adding it if necessary.

At the same time, even supporting a regular coolant level at the required level, the cooling system may come to disrepair and lead to motor malfunctions. To avoid this, every 2 years experienced car owners are recommended for washing the engine cooling system. This procedure is performed on a paid basis by specialists in the service, but it can be carried out independently. As part of the article, we will explain how to rinse the engine cooling system with your own hands, including without the use of a special fluid.

The engine cooling system consists of a number of elements that must interact competently with each other so that the cooling fluid is supplied to the hottest engine parts during operation. The most vulnerable element of the cooling system is hoses that can clog or break from unnecessary loads.

During the operation of the car under the hood, sand, stones, insects are hipged, dust and other contaminants are formed on the engine. Part of the contamination over time turns out to be in the cooling system, stirring with coolant. This leads to the fact that a scale is formed on various metal elements of the design, which over time is peeled and falls into the hoses. They are clogged, which lowers the efficiency of the cooling system or it dismisses it out.

If on the instrument panel, the problem can be concluded not only in the absence of antifreeze, but also in the problem directly with the cooling system, to solve which will be quite expensive if you need to replace one or more elements. To avoid it, it is recommended to wash the engine cooling system every 2 years.

In car repair services, the engine washing is carried out by special means that you can buy in specialized on consumables For engine stores. There are many similar means, but the most famous laurels and the engine tests. The cost of specialized means for flushing the engine cooling system is extremely high, and many drivers are used to clean the system from outsiders "garbage" by ordinary distilled water. This method is cheaper, but also significantly less effective, since water does not fight with screaming, but only the accumulated microparticles are cleaned.

If there is a question than washing the engine cooling system inexpensively and efficiently, it is possible to use a solution of citric acid or coca-cola. Both fluids are perfectly coping with the task of cleaning from scale and other contaminants of the cooling system.

The process of flushing the cooling system is quite simple, and it consists of the following steps:

Careful flushing of the cooling system is necessary to derive the resulting precipitation, dirt, corrosive elements and harmful impurities that can lead to a violation of the stability of the system. We strongly recommend floating after washing the cooling system new antifreezeSince in the old liquid, even if the car drove it not so much kilometers on it, there are particles of contamination.

It is no secret that the acidic environment allows you to overcome scale and rust, and it is advisable to use it for cleaning the cooling system. The most accessible opportunity to create an acid medium independently in large volumes is to use a mixture of citric acid and water. The resulting solution allows you to get rid of contamination in the engine cooling system.

Some features of the cooling system of citric acid:

To create a solution, with severe pollution, it is recommended to use by 10 liters of water 1 kilogram of citric acid. If the pollution of medium gravity, the amount of citric acid per 10 liters can be reduced to 800 grams;
After the citric acid is filled into the cooling system, you need to drive a few kilometers by car (allow you to work for 10-15 minutes on medium speeds without sharp accelerations), after which leave a tool for another 45 minutes;
Before pouring a new antifreeze, it is necessary to thoroughly clean the system from lemon acid residues, for this, flushing the cooling system with water is repeated 3-4 times.

Lemonic acid shows itself no worse than many professional tools for cleaning the cooling system.

It has long been known that in everyday life of the Coca-Cola drink can be used as a cleansing agent. The composition of the soda contains various components that allow to clean rust and contamination. Coca-Cola can be used for cleaning the engine cooling system.

Some features of the cooling system of Coca-Cola cooling system:

The engine operating time on Coca-Cole must be minimal - 4-5 minutes, after which the motor should be turned off and allow another 30-35 minutes to remain in the cooling system;
Washing with water after Coca-Cola needs to be maintained more carefully than after other means, since the elements of the sugar can settle on the cooling system tubes.

It is worth noting that at the end of cleaning the cooling system from dirt with the use of Coca-Cola, it is recommended after the antifreeze bay to start the engine with an open radiator cover so that the remaining air bubbles come out. Next, turn off the engine and decrease the coolant into the formed additional space.

Engine cooling, far from the most difficult process In the car, but violations in his work entail breakdowns or even the complete output of the engine is out of order with its subsequent replacement. Therefore, it is necessary to monitor its health. It takes it a little time and requires very minor means. The main procedure is replacing the coolant and flushing system.

Before continuing, look at the video about how the quality of antifreeze is affected on her work.

When the engine cooling system is needed

Sometimes the engine cooling system looks like this ...

But, if it is unknown, when the procedure was last carried out last time, it is possible to make a decision on a variety of features:

worse pumping pumps;
the reaction of the system to change the position of the rheostat has decreased;
the temperature sensor shows an elevated temperature or testimony starts "jumping";
the stove does not work well;
The system always works on high revs.

These are the first "calls" to the fact that the cooling system requires cleaning. If they remain without attention, the next symptom is boiling the coolant.

As far as the engine cooling system is clogged, in some cases it is easy to determine visually: just open the radiator lid or the expansion tank

How to rinse the engine cooling radiator

The procedure is carried out or in the warm season or in a heated garage and occupies, depending on the degree of pollution, from 4-5 hours to 25 hours. Action is fulfilled at the same time.

First of all, it is necessary to merge the coolant. Doing it, do not forget to substitute the container under the drain hole:

First, you will need to consider the fusion antifreeze.
Secondly, antifreeze is harmful to ambientYes, and for a person, too, so we work in gloves and care caution.

When the glasses are all spent fluid, set the plugs and tightly tightly. We consider fluid. According to its degree of pollution, we determine how we flush the engine cooling system. There are several compositions of varying degrees of aggressiveness:

Distilled or boiled water. It is used if there are almost no pollution in the liquid in the liquid, and its color has not changed.
Acid solutions. If in the used antifreeze there are scale particles, you can remove them with acids with acids. This may be a weak solution of acetic, lemon or lactic acid. Sometimes hydrochloric acid is used with low concentration, but this is one of the most extreme methods.
Alkaline solutions. This composition is justified if significant fat deposits are present. With such sediments, caustic or calcined soda is added to the water.

Acid and alkaline compounds can be made independently, but it is necessary to strictly adhere to the recommended proportions. This is the case when the procedure is better to repeat the enno number of times than to make a concentrated solution, which can cause damage and corrosion of rubber or plastic nodes and parts. There are also similar compositions of industrial production.

In order not to risk, it is better to buy a flushing of factory production. Manufacturers argue that their means for flushing the engine cooling system contain special additives that form, after cleaning, on all parts, a thin film that impedes corrosion. Nevertheless, many motorists make solutions independently and do not complain about the consequences. In general, as always, the choice is yours.

Wash engine cooling system with water

If the coolant is fused almost without impurities (it looks more or less decent), you can apply the most sparing method - rinse the cooling system with water. It is desirable distilled water, as a last resort, boiled. Pour it into the expander, tighten the lid and start the engine. Let us work for 10-20 minutes. Loading the motor, we again drain the liquid.

After the motor worked, there must be time. The liquid must cool a little, otherwise removing the lid, you can get a burn with a boiling fluid.

We estimate its condition. It is desirable that it was clean and without impurities. If necessary, the procedure is repeated several times. Sometimes it is necessary to make adjustments along the way: contamination is detected and you have to pour an acid or alkaline solution.

Wash engine cooling system with acid solutions

To remove scale into the system, a weak solution of lactic acid is poured. As a rule - 6%. For this, in 5 liters of water dissolve 1 kg of thirty-estelling lactic acid. The solution into the system is poured heated to 30-40 per C. almost immediately begins chemical reaction With the release of carbon dioxide. When the process is completed, everything is drained and the system is washed several times with water (see above) to the total transparency of the water being drained.

Sometimes serum is used as a solution of lactic acid. Its bay in the cooling system, you can ride a car for several hours, then everything is drained and rinse it again several times with water. Such a procedure easily tolerates the products of the domestic car industry, but with imported cars you need to be extremely careful, although some of their owners have been tried serum and there were no negative consequences.

The use of hydrochloric acid solution is a rather risky way, but it is also used quite often. The solution should be no more than 2%. Exposure time - until the gas is discontinued. After that, everything is drained and rinse it repeatedly, in conclusion add liquids containing additives that form a protective film.

Another acid solution is lemon. There is no accurate dosage, but the solution should be weakly acid. The time of finding a solution in the system is also determined by the cessation of the reaction. Careful and multiple washing with water is also required.

Cooling system can be washed using food citric acid

Intensify the process of cleansing the engine cooling system, if you start the engine several times and give it to work for 5-10 minutes. Such "activation" can be carried out several times. As a result, purification will be more complete, but sometimes it happens that after such a procedure, old or new "sores" appear. On the one hand it does not please: you need to repair, but on the other, you will be sure that in the near future the surprises of the engine cooling system you can not be afraid: all subtle places have broken when washing and corrected. Yes, and not necessarily there will be some unpleasant surprises. Often after washing without any complications, the system does not work alone and not two years without repair.

Some desperate car owners are used to wash even such an inappropriate, it would seem, a tool like a toilet "duckling", and "Active". And the result is rejoiced: the system is clean, and after semi-annual operations there was no failure.

When using the acidic compositions of factory manufacturer, you need to carefully read the instructions for use and accurately comply with all instructions. Any retreat may entail a malfunction and repair.

Wash engine cooling system with alkaline solutions

As alkaline solutions, unsaturated solutions of caustic or drinking soda can be used. This method is justified if there is a large number of fatty spots and oily sediment in a merge of antifreeze. The principle is still the same: pour the solution into the system, several times start the engine and give it to work 5-10-15 minutes. After that, thoroughly merge and rinse several times with water until the transparency of the water drained. And the smell should also disappear. Then the system of washer.

We hope now it is clear what to rinse the engine cooling system in each case and how to do it. The main thing is not to forget after using the active solution to wash the system with water. For those who do not want to risk with homemade solutions, there is a large selection of funds for washing the engine cooling system of industrial production. In this case, you only need to clearly follow the instructions, as there are quite significant differences in the procedure.

Neutral flushing "MOTORESURS"

It is necessary to pay attention to the fact that in some cases it is better to use acid flushing, and in some alkaline - it all depends on the type of contamination. It is impossible to create a wash, simultaneously containing acid and alkali, since any diet knows that the acid neutralizes the alkali, and the alkali neutralizes the acid.

According to employees of the Russian company "Motoreurs", they managed to create a soft flushing of the cooling system on the catalyst system (no acids and alkalis).

The drug is poured B. expansion tank Cooling systems and continue to operate the car. After a run of 1000-2000 km, antifreeze or toosol merge and give it to settle. Then you can neatly pour out the sparkling liquid back, not allowing to get into the system.

Engine cooling radiator flushing

Clean the system from the inside, and do not clean it outside - a big mistake. If the grille is clogged with dust, down, insect residues, cooling will still be far from normal.

Wash engine cooling radiator - necessary procedure

To clean the radiator need a good water or air pressure. You can use the car wash "KEWER", but one should not bring the hose to the radiator - the plates can be brought. It is not bad to cope with the cleaning of a powerful household vacuum cleaner, but most likely, you will have to additionally work with a brush with a bristle medium hardness.

Now, cleaned the cooling system, the engines from the inside and outside, you can not be afraid that the motor will boil.

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