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Adjustment of clearances in the valve drive ZMZ-402

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.

Repair and replacement of the oil pump ZMZ-402

The engine oil pump is a conventional gear pump.

Repair of the coolant pump ZMZ-402

Usually, the coolant pump is removed from the engine due to noise during its operation, excessive radial play of the pump shaft

How to remove and repair the fuel pump ZMZ-402

Fuel from the tank goes through the fuel line to the diaphragm pump.

It is driven by a camshaft eccentric that acts on the pump drive lever

Disassembly of the VAZ-2123 engine

The engine is dismantled for overhaul. Conditionally, the engine has already been removed from the car.

Motor mounts removed and engine mounted on a frame or stand

Removing the cylinder head of the VAZ-2123 engine

We conditionally remove the cylinder head from the engine dismantled from the car. Therefore, operations to prepare for the removal of the cylinder head are not considered in this article.

Troubleshooting of engine parts VAZ-2123

After disassembled the engine, you need to thoroughly wash all the parts with gasoline and remove carbon deposits.

Before assembling the engine, it is necessary to inspect the cylinder block, cylinder head and all the main parts for assembling the engine.

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