The ZMZ0-402 engine is equipped with an ignition distributor sensor (1908.3706) - non-contact, with a control pulse sensor (generator) and built-in vacuum and centrifugal ignition timing regulators.
Removal and installation of the ZMZ-402 cylinder head of the GAZ-3110
An external sign of wear on the valve stem seals is the short-term appearance of blue smoke from the exhaust pipe after starting the engine, as well as when braking the engine after prolonged driving under load