What is the cylinder head gasket and why is it important for VAZ?
What is the cylinder head gasket and why is it important for VAZ?
Cylinder head gasket for VAZprovides tightness of a number of car systems, the channels of which pass through the section of the cylinder block and its heads. When disassembling the head of the unit, the gasket must be replaced.
Cylinder head gasket (cylinder head)It is designed to seal the joint between the cylinder block and its head. In the cavities and holes of the cylinder block, the gas distribution, cooling and circulation channels pass, so a loss of tightness of the above-mentioned connection can cause a number of car engine systems to fail. Gaskets are made of multilayered reinforced rubber. The main characteristics of the gaskets are the material grade and thickness. These parts must be replaced after each disassembly.
Features of work
Feature of a lining of a head of the block of cylindersis the impossibility to diagnose its failure during the movement of the car. The fault can be indirectly determined during the inspection of the engine, knowing the main signs of loss of tightness of the gasket. Evidence of failure of the gasket are such factors as the occurrence of oil leakage in the area of contact between the head of the block and the lid or the appearance of a white emulsion in this place. The appearance of oil stains in the expansion tank also indicates the failure of the gasket. Despite the low cost of domestic machines and spare parts for them, the vast majority of Russian-made machinery is inferior in quality to foreign cars. Taking into account the importance of cylinder head gasket for safe engine operation, maintenance specialists recommend that owners of VAZ cars replace the original gasket with a similar piece of higher quality. It is also recommended to take a spare gasket for long trips in order to replace it in case of a malfunction.The main causes of failure of cylinder head gaskets
The main cause of the malfunction isoverheating of the gasket, which causes warping of the material and leads to its irreversible deformation. The cause of overheating can be the failure of the cooling system elements. Another source of additional temperature loads on the gasket is the penetration of the exhaust gases under it. This causes temperature deformation of the gasket and leads to loss of leakage by the joint. Also, leakage failure can be caused by installation errors, therefore, the repair of the cylinder block, providing replacement of the head gasket, should be trusted exclusively by professionals.
