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Do you need to clean the engine for car maintenance? How to clean?

When many people go to the 4S store for maintenance, they will be recommended to clean the engine. At this time, people will feel that it must be recommended by the 4S store to make money. The engine is an important part of the whole car. Its main function is to obtain power through combustion. There are many parts in the engine. Once these parts have problems, it will affect the normal use of the car. Do you want to clean the engine during car maintenance?

When engine oil works in high temperature environment, oxidation and pollution will inevitably occur. Therefore, after a period of use, the engine will produce carbon deposit, oil stain and gum. These pollutants will narrow or even block some precise oil circuits of the engine, so that the engine oil can not be lubricated normally and protect all parts of the engine. When the car is started, especially when it is cold, the engine oil can not provide effective protection to the engine in time, so it is very easy to wear the engine. In addition, oil sludge attached to the cylinder wall will also increase friction, resulting in oil consumption. At the same time, dirty oil will cause insufficient oil pressure, resulting in valve failure with hydraulic tappet, abnormal engine noise, unstable idle speed, engine power reduction and other faults.

Therefore, for some vehicles whose engines have not been cleaned and maintained for a long time, the oil change cycle is long and the road conditions are bad, the simple oil change can not keep the engine clean, so it is necessary to clean the engine. For normal vehicles, it is also necessary to clean and maintain the engine when driving to 40000-50000 km.

How to clean the engine

Before talking about how to clean the engine, let's take a look at what is cleaning the engine?

Engine cleaning refers to the thorough cleaning of oil dirt, dirt and dust on the engine surface with detergent, so as to restore the original appearance of the engine surface and improve the heat dissipation and service life of the engine.

Steps for cleaning the engine:

1. Waterproof preparation: open the engine cover, cover the generator, distributor and brake oil pot with cloth, seal them with plastic tape, and spray engine cleaning agent on all parts. Spray more in particularly dirty places.

2. When the engine cleaning agent begins to dissolve, turn on the high-pressure water gun and spray the extremely dirty part of the engine.

3. Spray the vent under the front windshield with a high-pressure water gun.

4. Spray and wash the leaves, sludge and dust in the heat insulation space between the front windshield and the engine.

5.  Use a high-pressure water gun to wash the leaves, insect corpses, dust, etc. on the radiator of the water tank, radiator and air-conditioning condenser.

6.  Wash the left and right wheel fenders and the side drain holes in the engine room with a high-pressure water gun, and take out the leaves and dirt.

7.  Wash the dirt and dust in the side support strip in the engine room with a high-pressure water gun.