Does it matter if the valve cover gasket leaks oil?

It is very important that the valve cover gasket of Pacific Auto Network leaks oil. The oil leakage of bonnet gasket needs to be repaired in time, and the more it is delayed, the greater the loss will be. Valve cover gasket is mainly used for sealing to prevent oil leakage. Because the material of the bonnet gasket is mostly rubber, it will inevitably age and harden over time, so there will be oil leakage.

The oil leakage of valve cover gasket needs to be repaired in time, and the more it is delayed, the greater the loss will be. Valve cover gasket is mainly used for sealing to prevent oil leakage. Because the material of valve cover gasket is mostly rubber, it will inevitably age and harden after a long time, so there will be oil leakage.

After the valve cover gasket leaks oil, you will see many traces of oil near the side of the top of the engine. This is mainly caused by two reasons. One is that the valve cover gasket is really aging and fragile, losing its sealing ability, leading to oil leakage. This situation is actually good. Just open the bonnet and replace the gasket. The second type is that the PCV valve of crankcase ventilation system is blocked, which leads to excessive pressure in the engine and eventually leads to oil leakage under pressure. If this problem is not found out, it will cause more trouble in the future, such as oil leakage of crankshaft oil seal and so on. However, it is very simple to judge whether the PCV valve works normally: when idling, the working state of the PCV valve can be judged instantly by detecting the vacuum degree of the crankcase air inlet with your fingers.

The oil leakage at the valve cover gasket may also be caused by uneven screw pressure, excessive screw pressure, deformation of the valve cover gasket, blockage of the crankcase forced ventilation valve and poor quality of sealing ring sealant. The valve cover is above the engine, and the leaked oil will flow down the cylinder. When the engine is working, the temperature is very high, which will directly evaporate the oil on the cylinder block and produce a pungent smell.

Long-term oil leakage of engine will lead to insufficient oil leakage of internal parts, leading to serious wear and tear. The more serious the oil leakage, the more serious the wear and tear. The engine is the heart of a car. If the engine is seriously damaged, it will be very troublesome to maintain and the economic loss will be great.

(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)