Engine Oiling System: Notes

Pressure lubrication of engine is achieved by a gear-type oil pump. Pump sucks oil through a screen into pump housing and forces it through a full-flow type oil filter into main oil galley. Part of oil is fed to the crankshaft and camshaft bearings. The bearings of crankshaft journals are connected with main bearings by bores so main bearings can effectively be oiled. Under pressure, oil that is thrown off crankshaft serves as lubrication for cylinder walls. Remaining oil is fed to oil galley in cylinder head and serves the valve mechanism.