Engine Lubrication: Description and Operation

The lubrication system is a full flow filtration pressure feed type. Oil, stored in the oil pan, is taken in and discharged by a gerotor type oil pump directly coupled to the crankshaft and its pressure is regulated by a relief valve. The oil is fed through an oil filter and to the crankshaft journals from the oil gallery in the cylinder block. This gallery also feeds oil under pressure to the cylinder heads. It then flows to each cylinder head through passages to camshaft journals, the rocker shafts to the rocker arms, hydraulic lash adjusters. The oil pump body is mounted to the engine block. The pump inner rotor is driven by the crankshaft. A windage tray, integral with the oil pan gasket, increases power by minimizing oil windage at high engine rpm.