Hydraulic pushers of the engine ZMZ-406, ZMZ-405, made in the form of cylindrical pushers and located between the camshaft and valves, combine two functions:
Repair of the cylinder head is carried out during general engine repairs and when replacing the cylinder head gasket.
The gas distribution mechanism consists of a camshaft, intake and exhaust valves, as well as parts for their installation and drive: pushers, rods, rocker arms, adjusting screws with nuts, plates with crackers, springs, racks and rocker axles
Usually, the timing belt is designed to operate for 30,000 km
Oil pump (Fig. 1.) gear type installed inside the oil sump
Before assembly, each crankshaft must be checked on a magnetic or ultrasonic flaw detector for the absence of micro and macro cracks; as well as the compliance of the selected set of main bearing shells with the size of the main journals
Cylinder head and gas distribution mechanism D-245
The cylinder head is a cast iron casting, in the internal cavities of which there are inlet and outlet channels closed by valves
