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Lapping valves ZMZ-402 step by step with illustrations

We take a 22 socket wrench or a suitable piece of pipe

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The ignition lock bracket is fixed to the steering column with two bolts, the heads of which are cut off at a certain tightening torque

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Replacing a radiator with a ZMZ-406 engine

Drain the coolant (see Replacing the coolant).

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Remove the heater valve if there is a coolant leak

We remove the auxiliary heater electric pump to approach the tap during replacement, and in case of a malfunction of the pump itself

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Removing the right rear door lock

Pry off with a screwdriver and open the door handle plugs