China Suppliers Factory Engine Rocker Cover Gasket 11213-30020 for Toyota Hilux VII & Hiace IV
ADVANTAGES
The valve cover is the sealing member of the upper part of the engine, and the corresponding oil pan seals up the engine oil, so that when the engine is running, the oil will not leak to the outside. It's mainly for sealing,prevent oil leak.
Leakage of valve chamber is also a common problem. Apart from quality and assembly problems, aging of valve cover gasket may also lead to this problem.
Types of Cover Gaskets
In the majority of modern cars on the market today, there are two main types of cover gaskets that you will find in cars – either liquid gaskets or formed rubber gaskets. The type of gasket you have in your vehicle is determined by the type of material used in the formation of the valve cover gasket and how much pressure it puts on the seal it covers. The valve cover keeps the gasket compressed, which prevents leaks, being the cover gasket’s overall job in the car. Over time, however, the gasket can become faulty and damaged due to the high amount of engine heat or the bolts loosening over time, causing the gasket to become brittle and cause an engine oil leak.
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