Engine Lubrication: Description and Operation

(Part 1 Of 2):

(Part 2 Of 2):

The engine lubrication system consists of:
^ Oil pan
^ Oil pump screen cover and tube
^ Oil pump
^ Oil filter
^ Passageways in the cylinder block crankshaft, camshaft and cylinder head.

The oil pan is pressure cast aluminum and serves as both an oil reservoir and engine bottom cover. The oil pan has reinforcing ribs which strengthen the pan reduce engine noise transmission, and aid in oil cooling.

The oil pump is a rotor type with an inner rotor which turns inside of an off center outer ring.





The oil pump is located in the front of the cylinder block and is driven by the timing belt through a sprocket identical to the camshaft sprocket.