What is the cause of oil leakage in cars or engines? How to do it and how to maintain it?

There are two basic reasons for oil leakage from automobile engines:

1, the automobile engine leaks oil. There are clear oil stains on the surface of automobile engine shell. If you clean up the oil pollution at this time, you will soon find that there is oil pollution on the shell again, and even some serious gasoline falls like water drops. If this problem occurs, the car should be sent for repair as soon as possible.

2. The automobile engine leaks oil. There is only a small amount of oil stain on the engine casing, indicating that the engine oil leakage is not particularly serious. The oil leakage at this time is not obvious and small, and it will hardly affect the engine at this time.

The most direct and effective way is to completely replace the sealing ring. The urban roads are congested, and it is necessary to constantly shift gears when stopping and going. Nowadays, there are more and more automobile gears, which leads to more and more gear shifting times, greater working pressure and higher temperature in the gearbox, which accelerates the aging and deformation of the rubber at the seal of the gearbox.

There is also a small part because the gearbox oil is increased, which increases the gear resistance of the gearbox. When the gear of the gearbox struggles, the problems in the gearbox will also increase, which will lead to the loosening of the oil seal and eventually lead to oil leakage. Therefore, refuel according to the maintenance manual.

A sudden large-scale oil spill, such as yesterday, was fine. Today, I suddenly found a big pool of engine oil on the ground, which is often caused by the deformation and rupture of the bottom of the oil pan or the failure to tighten the mechanical filter screen. After this problem occurs, check the oil level immediately and go to the repair shop for inspection at the first time.

Extended data:

Causes of engine oil leakage:

1, poor sealing of valve cover gasket, deformation of oil radiator, oil filter, bearing hole of distributor housing, rocker cover, cam bearing back cover and engine bracket plate lead to oil leakage.

2. When the front and rear oil seals and oil pan gaskets of automobile crankshaft are damaged to a certain extent, it will also lead to engine oil leakage.

3. If the gasket of the timing gear cover of the automobile is improperly installed or damaged to a certain extent, the screw will loosen and leak oil.

Treatment and harm of engine oil leakage;

1. Different models have different solutions. Some engine leaks do not need to be removed, but some leaking cylinders need to be removed. It is best to deal with it according to the specific situation of the car.

Oil leakage of automobile engine is not the main fault, so we don't need to repair the automobile for the time being. But if the engine leaks oil, it needs to be carefully detected.

3. Oil leakage from automobile engine will bring some hazards, the most important of which is the loss of a large amount of engine oil, which is a waste. In severe cases, the engine may be damaged due to insufficient oil.