The oil pump is removed for replacement or repair when the pressure in the lubrication system drops below the permissible level, when the gears are noisy and the pressure reducing valve plunger is stuck
Remove the cylinder head
Remove the crankcase and crankcase gasket
The ignition distributor sensor (1908.3706) is installed on the ZMZ-402 engine - contactless, with a sensor (generator) of control pulses and built-in vacuum and centrifugal ignition timing controllers
Installing the cylinder head and valve mechanism D-245
If it is necessary to replace the valve seats, use the set of special mandrels shown in fig. 1.
The head of the block can be removed with the intake pipe and exhaust manifold
Loosen bolt 1 two to three turns
Unscrew the adjusting bolt 2, loosen the belt tension and remove it
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
