Operation CHARM: Car repair manuals for everyone.

Engine Oil Circuit

Engine Oil Circuit




1 Oil strainer in crankcase
2 Scavenge pump
3 Pressure pump
4 Safety valve (opening pressure p=9 atu (113.7 psi))
5 Thermostat (opens to pass oil through cooler at approx. 83° C)
6 Oil pressure gauge
7 Pressure release valve (opening pressure p=5.4 atu (76.7 psi))
8 Oil cooler
9 Oil tank
10 Perforated plate (to prevent foaming)
11 Bypass valve
12 Full-flow oil filter
12 Oil filler pipe
14 Oil temperature gauge
15 Crankcase breather into oil tank
16 Oil tank breather to intake air filter
17 Combined oil pressure and temperature indicator