Engine Oiling System: Notes

Lubrication is provided by a gear type oil pump directly driven by crankshaft. Oil is picked up through a strainer from lower portion of oil pan and forced to oil filter through a duct in timing casing. After passing through filter, oil flows to center main duct, to crankshaft and through rod bearings up rods to piston pin bushing. Oil galleries run to cylinder head, valve assemblies and to camshafts. Circuit also includes chain tensioner, ignition and, if applicable, air compressor.