If checking the support reveals the need to replace it, replace it

The VAZ-2123 engine is equipped with a distributed phased fuel injection system: gasoline is supplied by injectors to each cylinder in turn in accordance with the engine operation order

The front brake caliper is removed to replace it or replace the working cylinders and brake disc

You will need: a screwdriver, wrenches "for 8", "for 10", "for 13", a special key for turning the crankshaft

The cylinder head gasket is replaced if it is damaged.

The main signs of damage to the head gasket:

If the oil leak from under the cylinder head cover could not be eliminated by tightening the cap fastening nuts, replace its gasket