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How to remove and install the cylinder head ZMZ - 402

The head of the block can be removed with the intake pipe and exhaust manifold.

If the head of the block is removed from the engine installed on the car, you must first perform the following operations:

Replacing the nozzle of the ZMZ 406 engine

Relieve fuel pressure in the fuel system

Turn off the ignition and remove the "negative" terminal of the battery

Checking and replacing the brushes of the generator and the voltage regulator of the car Gazelle

Checking and replacing brushes and a voltage regulator on cars with an engine of the ZMZ-405, ZMZ-406 type

On engines of the ZMZ-406 and ZMZ-405 families, generators 9422.3701 or 5122.3771 with built-in integrated voltage regulators are installed.

How to replace timing chains and gears ZMZ-405, ZMZ-406

You will need: a hex wrench “6”, heads “12”, “13”, “14”, a small chisel, a hammer

Checking and replacing the ignition coils of the ZMZ-406 engine

The electronic unit, processing the data received from the sensors of the system, controls the operation of two ignition coils, applying low voltage pulses to them

Removal and installation of the ZMZ-406 engine generator belt

Loosen bolt 1 two to three turns

Unscrew the adjusting bolt 2, loosen the belt tension and remove it

Removal and installation of the distributor ZMZ-402

The ignition distributor with a built-in Hall sensor produces voltage pulses, which the switch converts into current pulses in the primary winding of the ignition coil

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  • Generator repair 9402.3701-01 Niva Chevrolet
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