Engine flushing when replacing oil. Reviews, rules, advice of specialists

Engine oil is an integral part of the engine, like other parts. As the vehicle is being used, engine oil eventually loses its properties, and accordingly, its replacement is necessary. There are also a number of reasons why replacing the lubricating material is simply necessary. You can change the oil both at home and in the service centers.

In the engine in use, a standard process of developing lubricant properties occurs, as well as its contamination by products of wear of machinery and engine parts. There is a likelihood of getting into the grease of oil, fuel and soot when the fuel mixture burns. The service book of the car indicates the recommended life of the engine without filling a new liquid. In order to change the oil, you should take into account the frequency of replacement, which may depend on the engine hours, the amount of fuel used or kilometers of mileage.

Aggregates, lubrication in which is carried out with the use of seasonal oils, need to be replaced twice a year. The properties of seasonal liquids depend on the temperature of the outside air. As a rule, during the spring and autumn periods, the engine is flushed when the oil is changed. Drivers' comments indicate that lubricants have different viscosities and effects on engine parts. Therefore, if it is not changed according to the season of operation, the engine's engine resource is significantly reduced.

Necessary security measures

Car maintenance (and in particular oil filling operation) must be carried out in accordance with all safety requirements. As a rule, immediately before replacing it is necessary to allow the engine to cool slightly, so as a result, do not get a trauma in the form of a thermal burn. All work should be done with gloves and a respirator.

Main causes of engine flushing

• A common reason can be attributed to a change in the type of lubricant being poured (synthetics-semisynthetic-mineral, seasonal-demi-season).
• Change the brand of the manufacturer of oil.
• If it is suspected that water or fuel could get into it.
• After purchasing the car from the hands (to reduce the risk factor of premature wear of parts).
• After engine repair, and in particular - after dismounting the cylinder head.
• When visually inspecting and detecting a large amount of carbon deposits on the parts and a larger sediment at the bottom of the pallet.

Ways and rules for washing

At the moment there are several ways to flush the engine oil system:

• Chemical.
• Soft.
• Full volume.
• With forced movement of the washing liquid.

From the degree of wear of engine parts, used oil and operating conditions depends on the choice of how to flush the engine.

There is also a manual way to clean the engine of various clogs. In this case, the engine must be disassembled and with the use of rags, various brushes and detergents to manually clean the engine parts and mechanisms, as well as the unit. This method of cleaning allows you to visually determine the presence of possible damage, more thorough diagnosis of parts and their replacement, thereby preventing the possibility of more serious malfunctions.

Chemical

This is the most common engine flushing when replacing oil. Reviews: an inexpensive way and is spent for the short period of time with the minimum financial expenses. It is carried out quite simply.

In the old oil, you should fill the flushing and let the engine idle for about fifteen minutes. Then the workings off from the crankcase together with the washing. The use of this method is quite effective, but at the same time it is not intended for cleaning motors with strong deposits and pollution. As experts advise, this method serves as an excellent prevention against small soot and other deposits. Use the chemical method is recommended every time at the time of replacing the lubricant.

The main component of washing preparations are solvents, which, in turn, contribute to the partial dissolution of mud deposits and give them mobility, and also raise the mud sediment from the pallet.

In the event that the chemical cleaning of the power unit is carried out regularly, the possibility of forming a dense layer of burning on the walls of the crankcase is minimized, which in turn affects the wear of moving and contiguous motor parts.

Soft

This method is carried out by adding the drug to the lubrication of the motor for about 250-500 kilometers before the replacement. The engine rinse agent contains a lower concentration of solvents, which does not affect the viscosity and density of the oil. When using this method, mud deposits dissolve in the oil gradually and at the same time acquire a finely dispersed structure, further mixing with the old means. The disadvantage of soft washing is the unpredictability of the consequences for a highly contaminated aggregate. Therefore, this method of cleaning should be carried out with care and periodic testing of the liquid.

Full volume

This is a more thorough and qualitative washing of the engine when replacing the oil. Feedback about this method is positive because of the excellent performance after the completion of washing operations. It is carried out in the following way: the used oil is drained from the crankcase of the engine, the drain plug on the pallet is twisted. Then the engine is flooded and the engine is started for twenty minutes.

After that, the engine oil is drained off. And its remnants are removed by a vacuum unit. The oil filter is replaced and new oil is poured.

With forced movement of washing

With this method, the workout is completely drained from the motor, the filter element is dismantled. Then the hose from the forced circulation device is attached to the filter seat. The second hose is attached to the filler neck, and the third - to the drain hole in the pallet block. The device for cleaning the motor is equipped with a container in which the engine washing liquid is poured and a filter. Under the influence of air pressure, the detergent enters the lubrication system of the motor, and the liquid is purified through the filter of the device. Thus, all mud deposits of the engine are retained in the capacity of the filter element. Forced flushing is carried out on a non-working unit.

At the end of the flushing, a filter is mounted on the engine, a full-scale flushing process is performed with the engine starting for 20 minutes.

Car maintenance in this way can take time within one hour. But the efficiency of the process is quite high. As the reviews of motorists say, it is possible to clean even the strongest deposits of soot and burnt gas, the intake screen of the oil receiver and all the oil channels of the unit are being cleaned. To the disadvantages of circulating washing by the forced method is the moment of complete removal of the lubricant film from the surfaces of engine parts. This factor indicates that at the time of start-up and in the first seconds of engine operation, the mechanisms and motor components operate without lubrication.

Depending on the way the engine is flushed, the price of the service will also be appropriate (from 3 to 5 thousand rubles).

A few practical tips

If you decide to carry out the process of oil change and engine flushing yourself, you should first determine the choice of the washing liquid. It must correspond to the type of oil that is filled in the engine, because for synthetic and mineral oils there are different types of cleaning liquids. Also note the type of engine - gasoline or diesel. On the container of the detergent are usually indicated: the method of application, compliance with oils and engines, detailed instructions.

For better cleaning, it is also recommended to purchase an additional oil filter directly for the washing process, after which it is dismantled and not used. To do this, it is enough to buy a cheap filter element, which is not a pity then to throw out. This is necessary for cleaning the washing material and for detaining the debris fractions.

If you can not clean the engine yourself, you should contact the professionals. The maintenance station has the necessary set of equipment and tools for this event. In this case, specialists will be offered to carry out any method of washing with the replacement of oil, as well as a large selection of cleaning preparations.

Domestic engines

As a rule, the washing of the VAZ engine does not differ from the complexity of the process from the washing of power units of other manufacturers. The entire cleaning procedure should be carried out in accordance with the instructions, with the use of a high-quality cleaning material and the engine oil that is properly matched to the engine.

Flushing the fuel system of the gasoline engine

Many parts, components and mechanisms of the car have their own resource of efficiency and availability, after which the parts must be changed or cleaned.

So, during the period of using the car, irrespective of the quality of the fuel, pollution of the fuel system elements occurs, which affects the operation modes of the power plant. The engines of the new generation, equipped with a fuel injection system, have a low threshold of tolerance for the quality of fuel. Especially motors with directional and direct injection of the working mixture. In this case, small flow sections of nozzles are often clogged with various foreign particles that are in the fuel. To prevent this kind of malfunction, the system uses a variety of coarse and fine filters, which easily change when clogged.

Since the nozzles have an upper position, respectively, the engine, they are affected by high temperatures.

Therefore, the probability of formation of tarry deposits in the passage channels of the nozzles is very high. In low-quality fuel, there is an excessive percentage of heavy substances and sulfur, which affects this factor. In the process of clogging, the dimensions of the injector channels change, thus affecting the amount of fuel to be passed, up to the complete overlap and the moment of supply of the fuel mixture.

The fuel injector of the petrol engine injection system is a complex electromechanical device consisting of high-precision parts that need constant maintenance. The engine nozzles are flushed in the order of the scheduled maintenance and in the event of the following problems: the unit is not started properly, the fuel consumption is increased, the explosion in the exhaust system, the ignition in the cylinders, the dynamic characteristics of the power unit, the frequent failure of the oxygen sensor. In this case, the flushing of the fuel system of the gasoline engine should be carried out on specially equipped stands, using high-quality washing material of the appropriate types and standards. Only with the use of high-precision equipment can you achieve high-quality repairs and excellent engine performance.

What is a washing liquid

The cleaning agent is made from a not very expensive motor oil (mineral oil), in which high-alkaline and other active additives are added, which dissolve various negative deposits in the motor. All washes can be divided into two impact categories: a long cleaning period and so-called "fifteen minutes".

Long-acting agents were widely used about fifteen years ago. Cleaning of the motor with such liquids was carried out in a certain period of time. At the same time, the car was only operated on the washing oil, after which it was removed, and instead of it, the usual engine oil was poured.

At the moment, this method of washing is used very rarely, which is associated with the financial costs for the process. Another disadvantage is the restriction of the speed mode of auto.

The oil for cleaning the unit does not fully protect the contacting parts of the mechanism, which can lead to their failure. The disadvantages include the impact on rubber seals and gaskets of various chemical reactions occurring in the crankcase. With prolonged use of this rinse, rubber parts lose their properties and begin to deteriorate, which subsequently leads to more expensive repairs.

More gentle is the quick flushing of the engine when changing the oil.

Reviews of motorists who regularly carry out this method are approximately the same: with the use of quick-action washes, the harmful effect of alkalis on the plastic parts of the engine has significantly decreased, since the time of the procedure itself has significantly decreased. It is important to note that high-speed washing materials are divided into two types (by the way they are used).

The first type is a highly concentrated liquid that is packaged in packs of up to about 300 milliliters and is applied by pouring into an old oil. The second cleaning has a canister in canisters up to five liters and is poured into the motor after draining off the work. In cases of using any of the two types of drug, the unit must be operated up to twenty minutes. Then the product is removed, and the usual engine oil is poured.

However, how to carry out the process of washing the unit and the engine, or not doing it at all - this is strictly a personal matter for every motorist. It all depends on the owner's preferences and the degree of clogging of the power plant. But it must be remembered that the working condition of the engine lubrication system significantly prolongs its service life. And it does not matter who takes the job - the maintenance station or the car owner.