Head Gasket GM 5.3 5.7 Ls1 Ls6 3.910 12589226, 12498544, Auto Parts, Automobile Cylinder Liner

The cylinder pad is also called the cylinder bed between the cylinder head and the cylinder block. Its function is to fill the micro pores between the cylinder block and the cylinder head, to ensure that the joint surface has good sealing, and then ensure that the combustion chamber seal to prevent cylinder leakage and water sleeve leakage.
 
Basic introduction to
With the continuous strengthening of internal combustion engine, thermal load and mechanical load are increasing, the sealing of cylinder gasket is more and more important. The requirements for structure and material are: sufficient strength and heat resistance under high temperature, high pressure and high corrosion gas action conditions; A lot of damage or deterioration, corrosion resistance; It has certain elasticity and can compensate the roughness of the joint surface to ensure the sealing; Long service life.
At present, the following kinds of cylinder gaskets are widely used:
One is a metal - asbestos gasket. This kind of asbestos is sandwiched with wire or metal shavings and is covered with copper or steel skin. This kind of steel pad thickness of 1.2~2mm has good elasticity and heat resistance, can be used repeatedly, but the strength is poor, thickness and quality are not uniform.
The other is made of solid metal. This pad is used in reinforced engines and is used in cars and racing cars. This liner in the need to seal the cylinder hole and water hole and oil hole around a certain height of stamping convex, using the elastic deformation of convex to achieve sealing.
In addition, there are cylinder head gaskets made of asbestos and rubber binder on both sides of the skeleton using wire mesh or perforated steel plate woven in the center.