Engine Lubrication - Suzuki F6A Service Manual

ENGINE LUBRICATION

The oil pump is of a trochoid type, and mounted on the
crankshaft at crankshaft pulley side.
Oil is drawn up through oil pump strainer and passed
through pump to oil filter.
The filtered oil flows into two paths in cylinder block.
In one path, oil reaches crankshaft journal bearings.
Oil from crankshaft journal bearings is supplied to con-
necting rod bearings by means of intersecting passages
drilled in crankshaft, and then injected from a small hole
provided on big end of connecting rod to lubricate piston,
rings, and cylinder wall.
In another path, oil goes up to cylinder head and lubri-
cates camshaft journals, racker arm, camshaft, etc.,
passing through oil gallery in rocker arm shaft.
An oil relief valve is provided on oil pump. This valve
starts relieving oil pressure when the pressure comes
over about 3.4 kg/cm2 (48.4 psi, 340 kPa). Relieved oil
drains back to oil pan.
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