Engine Lubrication: Description and Operation

LUBRICATION

DESCRIPTION
The lubrication system is a full-flow filtration, pressure feed type. The oil pump body is mounted to the engine block. The pump inner rotor is driven by the crankshaft. A structural windage tray is used to increase power by minimizing oil windage at high engine RPM. An engine oil cooler is used on some models.

OPERATION

Fig. 88:

Fig. 89:

Fig. 90:

Oil from the oil pan is pumped by a geroter type oil pump directly coupled to the crankshaft (Fig. 88). Oil pressure is controlled by a relief valve mounted inside the oil pump housing. See (Fig. 88), (Fig. 89), and (Fig. 90) for engine oil lubrication circuits.