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 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

Cylinder Block 1:

Cylinder Block 2:

Left Cylinder Head 1:

Left Cylinder Head 2:

Right Cylinder Head 1:

Right Cylinder Head 2:

Oil from the oil pan is pumped by a gerotor type oil pump (3) directly coupled to the crankshaft. Oil pressure is controlled by a relief valve mounted inside the oil pump housing. Refer to Cylinder Block, Left Cylinder Head or Right Cylinder Head art between the charts for engine oil lubrication circuits.