To compensate for the thermal expansion of the valve, the gap between the end of the valve stem and the camshaft cam is structurally set

Receiving pipes and exhaust manifold are replaced in case of burnout of gaskets

Hydraulic pushers of the ZMZ-409 engine, made in the form of cylindrical pushers and located between the camshaft and valves, combine two functions: transferring force from the camshaft to the valves and eliminating gaps in their drive

Knock sensor (0261231046 Bosch or GT 305) piezoelectric type mounted on the engine block under the intake manifold of the fourth cylinder