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. 87 Cylinder Block Oil Lubrication System:

Oil Flow:

CYLINDER BLOCK OIL LUBRICATION SYSTEM

Fig. 88 Cylinder Head Oil Lubrication System - Left Side:

Oil Flow:

CYLINDER HEAD OIL LUBRICATION SYSTEM - LEFT SIDE

Fig. 89 Cylinder Head Oil Lubrication System - Right Side:

Oil Flow:

CYLINDER HEAD OIL LUBRICATION SYSTEM - RIGHT SIDE

Oil from the oil pan is pumped by a geroter type oil pump directly coupled to the crankshaft (Fig. 87). Oil pressure is controlled by a relief valve mounted inside the oil pump housing. See (Fig. 87), (Fig. 88), and (Fig. 89) for engine oil lubrication circuits.