What is a car valve compartment cover?
The valve chamber cover is mainly connected with the engine cylinder cover, the camshaft is installed below the valve chamber cover, and some of the intake mechanism accessories on the cylinder head are sealed to ensure the normal operation of the engine valve drive mechanism and lubrication, protection, dust seal and all parts of the engine form a closed whole to ensure a good working environment for the engine internal parts. Here are the effects of a broken valve chamber cover:
1. Affecting the lubrication of the vehicle, the oil leaking out of the valve chamber cover will lead to insufficient lubrication of the valve chamber, which will cause wear and tear of the engine parts for a long time;
2, affect the air tightness of the engine, the oil leakage will also leak the working pressure of the starting motor, the engine has an exhaust gas recirculation valve connected with the throttle, the leakage will affect the stability of the engine;
3, cause the engine dirty, and even cause a fire, the leakage of oil will flow along the engine, combined with dust to form a sludge, if you encounter an open fire will ignite the engine, which is very dangerous.
What is the engine valve made of?
Engine valves are made of aluminum and alloy steel. The valve is composed of a valve head and a rod part; The intake valve is generally made of alloy steel such as chromium steel, nickel-chromium steel, and the exhaust valve is made of heat-resistant alloy such as silicon chromium steel; Sometimes in order to save heat resistant alloy, exhaust valve head with heat resistant alloy, and rod with chromium steel.
Is it necessary to repair the oil leakage of valve chamber cover pad?
It is necessary to repair the oil seepage of the valve chamber cover pad. Oil leakage will lead to poor engine air tightness, affect the normal operation of the engine, and even lead to engine scrap in serious cases. Causes of oil seepage may include aging embrittlement of valve chamber cover gaskets, loss of sealing capacity, and excessive engine pressure due to PCV valve blockage in the crankcase ventilation system. The solution is usually to replace the valve chamber cover pad. If oil leakage is found, it should be handled in time to avoid aggravating the oil leakage problem, protect the engine, and extend the service life of the car.
What is the function of the check valve on the valve chamber cover of the car?
Promote forced ventilation of the crankcase
The check valve on the valve chamber cover of the automobile, often called the PCV valve, its main role is to promote the forced ventilation of the crankcase. This function introduces the gas in the crankcase into the engine's intake pipe, so that these gases can be burned again in the cylinder, thereby avoiding direct emissions of exhaust gases, helping to protect the environment and reduce pollution to the atmosphere. In addition, the PCV valve also helps to keep the pressure in the crankcase below atmospheric pressure, which helps to reduce engine oil leakage and increase engine life. In general, this kind of check valve plays an important role in the automotive engine system, which is conducive to environmental protection and contributes to the long-term stable operation of the engine.
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