Repair of VAZ-2121

We remove the cylinder head to replace the gasket, repair the valve drive mechanism and the head itself, as well as during complete disassembly of the engine

The gaskets should be replaced when changing the intake pipes and when burnout or wear of the gaskets is detected

The oil pump drive gear must be replaced when the teeth are worn out, and when the splines that connect the gear to the oil pump shaft are damaged or worn out

The chain tensioner is located inside the front part of the cylinder head and is attached to it

Remove the cylinder head cover (see Replacing the cylinder head cover gasket).

The main reason for replacing the chain is excessive stretching.

When the camshaft drive chain is stretched too much, the chain starts to "rattle" when the engine is running.

Replacing the front crankshaft oil seal

The front oil seal must be replaced if oil leaks through the edge of the oil seal.