The piston of the 1st cylinder is set to the position of the top dead center (TDC) of the compression stroke so that when carrying out work related to the removal of the timing chains, the installation of the gas distribution phases is not disturbed

Removal, repair and installation of camshafts ZMZ-405, ZMZ-406

Remove the tips of the spark plugs together with high-voltage wires, ignition coils (you can only disconnect the connectors, leaving them on the valve cover),

If the gasket is leaking, the exhaust gases break out, accompanied by a characteristic sound (“cut” collector)

Replacing the oil sump seal ZMZ-406

If an oil leak through the oil pan gasket cannot be eliminated by tightening its fastening bolts, it means that the gasket is severely deformed and must be replaced

Replacing the front crankshaft seal

A sign of the need to replace the front crankshaft oil seal is an oil leak through its edge

Replacing the cylinder head gasket ZMZ-406

The cylinder head gasket is replaced if it is damaged