The oil pump (Fig. 1) is two-section, gear type, has a drive gear ratio of 1.075 from the crankshaft nose gear, attached to the lower plane of the crankcase
The piston serves to sense gas pressure and transmit it through the piston pin to the connecting rod and crank of the crankshaft
The fine fuel filter is designed to remove from it the smallest mechanical particles that were not retained in the coarse filter;