Replacing the cylinder head cover gasket ZMZ-406

Over time, during operation, the gasket under the engine head cover loses its elasticity and strength and oil leaks from under the cover

You can try tightening the cover bolts.

If the oil leak from under the cylinder head cover could not be eliminated by tightening the cover bolts, replace the gasket.

You will need: a 12mm wrench, a screwdriver.

Disconnect the wire from the negative terminal of the battery.

Drain the cooling system.

Head cover gasket ZMZ-406

Loosen the clamp on the supply hose and move it to the side.

Head cover gasket ZMZ-406

Disconnect the hose and wiring harness holders.

Head cover gasket ZMZ-406

Remove the crankshaft position sensor wiring harness from the holder.

Head cover gasket ZMZ-406

Remove the high-voltage wire tips from the spark plugs.

If replacement of high-voltage wires is not expected, the tips do not need to be removed from the cover wells

Head cover gasket ZMZ-406

Loosen the clamp of the ventilation hose and remove the hose

Head cover gasket ZMZ-406

Loosen the vacuum hose clamp and remove the hose

Head cover gasket ZMZ-406

Disconnect the wire blocks from the connectors of the primary winding of the ignition coil.

Head cover gasket ZMZ-406

Remove the bolts securing the cylinder head cover...

Head cover gasket ZMZ-406

Remove the cover along with the gasket, high-voltage wires and ignition coils.

Head cover gasket ZMZ-406

Separate the gasket from the cover.

Head cover gasket ZMZ-406

Inspect the condition of the valve cover seal and oil pipes, replace if necessary.

Head cover gasket ZMZ-406

Head cover gasket ZMZ-406

Degrease the surfaces of the cylinder head and cover.

Install a new gasket on the cover, install the cover in the reverse order of removal, and connect all hoses and wires

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