The removal of the camshaft was discussed in the article - "How to disassemble the ZMZ-402 engine »

We disassemble the block head for subsequent repair or replacement.

When disassembling, you need to lay out the spare parts of the head in order, taking into account their further use.

After disassembling the block head, rinse all parts in gasoline, wipe and dry.

Clean the combustion chambers from soot.

Inspect the block head. If there are cracks on the jumpers between the valve seats or on the walls of the combustion chambers, traces of burnout, replace the block head.

Inspection and fault detection of the connecting rod and piston group is discussed in the article - "Repair of the connecting rod piston group”.

We remove the cylinder head for repair, to replace the gasket under the head and for a complete engine overhaul.

Adjustment of the clearances between the rocker arms and the valves is carried out on a cold engine, with the cylinder head fastening nuts and the nuts for fastening the rocker arm axle struts tightened to the required torque.