The cylinder gasket is installed between the cylinder head and the cylinder block, and the cylinder head bolts are used to ensure the sealing of the cylinder to prevent the leakage of gas cooling water and lubricating oil.
The cylinder head gasket must tightly seal the high temperature and high pressure gas generated in the cylinder and the cooling water and oil with a certain pressure and flow rate through the cylinder head gasket, and can withstand the corrosion of water, gas and oil. Let's take a look at the fault diagnosis and elimination of engine cylinder gasket ablation
The function and structure of cylinder head gasket
The cylinder gasket is used to ensure the sealing between the joint surface of the cylinder block and the cylinder head to prevent air leakage, water leakage and oil leakage. It is the most important gasket in automobiles.
The cylinder head gasket is in direct contact with high temperature and high pressure gas, so it is easily ablated during use. Therefore, the cylinder gasket must be heat-resistant and corrosion-resistant, and have sufficient strength, certain elasticity and thermal conductivity to ensure reliable sealing.
At present, the metal-asbestos cylinder gasket is widely used. Its structure is a thin metal sheet covered with asbestos, and the cylinder port is made of a protective factor made of steel sheet.
Asbestos core has good heat resistance and certain elasticity, and copper chips or copper wires are mixed into asbestos to enhance its thermal conductivity.
In addition, there are metal skeleton asbestos pads, pure metal pads and so on. In recent years, some foreign engines have begun to use heat-resistant sealants, completely replacing traditional
conventional cylinder head gasket.
