But different car models have different parts of the problem, and there are also many unexpected places where the oil leaks. Actually, oil leakage is not a terrible thing. I'm afraid the engine can receive sufficient lubrication. Of course, in addition to oil leakage, many engines also have the phenomenon of burning oil; Slight oil leakage has little impact on the engine. When the belt is placed on the belt, it is easy for the belt to slip and fall off, damaging the engine valve cover gasket.

Long term oil leakage can cause the seal to shrink, harden, lose elasticity, and even rupture the valve; Therefore, please refuel according to the maintenance manual.

Sudden large-scale oil leakage, such as yesterday's good news, and today's sudden discovery of a large pool of oil on the ground, often caused by deformation and rupture of the oil pan or failure to tighten the filter. Go to the repair shop for inspection; The main function of the valve cover gasket is to seal and prevent oil leakage. Oil can cause car engines to overheat and produce pungent fumes, and even more so, oil can directly drip onto the road, causing environmental pollution.

The leakage of the valve cover gasket is due to the engine operating under high pressure and high temperature for a long time. Oil leakage from the valve cover gasket is a normal phenomenon. If there is oil leakage from the valve cover gasket, it is recommended to replace the car engine in a timely manner. The entire engine is composed of four parts from top to bottom: valve cover, cylinder head, and cylinder; Oil leakage at the valve chamber cover is not common. It may be caused by the following reasons: excessive oil addition, resulting in oil leakage. The viscosity of engine oil, occasionally changing it to a lower viscosity oil, can make the engine unsuitable. In addition to oil leakage, this phenomenon can also cause prolonged combustion of engine oil in the cockpit; One is that the valve cover gasket is indeed aging and brittle, losing its sealing ability and causing oil leakage. This situation is actually okay, as long as the valve cover is opened and the gasket is replaced. The other is that the PCV valve crankcase ventilation system is blocked and the internal pressure is too high. Finally, if the problem of oil leakage under pressure is not identified; Possible reasons for valve cover oil leakage: 1. The valve cover gasket of a car has been used for too long, causing aging and poor sealing. 2. The forced ventilation valve of the crankcase is blocked, causing an increase in crankcase pressure and pressure relief from the valve cover gasket or other weak parts, resulting in oil leakage. More than 90% of the valve cover oil leakage on the vehicle is caused by engine oil; The gasket of the large valve chamber cover mainly serves as a seal to prevent oil leakage. Due to the fact that the material of the valve cover gasket is mostly rubber, it is inevitable that it will age and harden over time, resulting in oil leakage. Of course, slight oil leakage from valve cover gasket 3 has almost no impact on the engine. Oil leakage, spark plug cylinder lines, etc. can be soaked in engine oil, affecting power and fuel consumption, or in severe cases, dripping onto the timing belt can easily cause engine damage. Belt slipping and falling off, damaging the engine. Long term oil leakage from the engine valve cover gasket can cause the seal to shrink, harden, and lose elasticity. Seriously; Opening the hood, you can see oil everywhere, and there is a large opening in the exhaust pipe that can be pulled out. The spark plug is completely immersed in oil, which means there is severe oil leakage from the valve cover gasket. After removing the bottom guard, you can see traces of oil leakage. What surprised us even more was that the timing belt was full of dripping oil.

This is mainly caused by two reasons. 2. The valve cover gasket is indeed aging and brittle, losing its sealing ability, and affecting oil leakage. I think there is no problem with this situation. Simply open the valve cover and replace the gasket. 3. Secondly, the PCV valve of the crankcase ventilation system is blocked, causing excessive internal pressure in the engine, which ultimately affects the leakage of oil under pressure. The leaked oil will adhere to the surface of the car body, slowly evaporating to produce pungent smoke. Severe oil leakage from the valve cover gasket can reduce the amount of oil and affect lubrication.

Oil leakage can affect the lubrication of vehicles. Oil leakage from the valve cover can lead to insufficient lubrication of the valve chamber, which over time can cause wear and tear on the components and damage the engine's airtightness. Rena valve cover gasket leaking oil Modern Rena valve cover leaking oil needs to be replaced; Of course, oil leakage from the valve cover gasket may not necessarily be an aging issue, and oil leakage from the valve cover gasket may also be due to imbalanced pressure on the screws. Excessive screw pressure. The valve cover gasket is deformed. The sealing ring of the positive crankcase ventilation valve is blocked. The quality of the sealant is poor. The valve cover is located at the top of the engine, and leaked oil will flow along the cylinder.