Engine Oil Circuit With Turbo
Oil circulationThe oil circuit at the turbo-engine differs from the previous 2.7 litre 911 engine only through the enlarged oil circuit for the turbo charger.
The lubricating oil supply to the turbo charger is branched off from the oil pressure indicator or remote thermometer indicator.
1 = pressure oil pump (widened)
2 = return plump
3 = engine oil cooler
4 = cooling coil
5 = remote thermometer indicator
6 = camshafts
7 = crankshafts
8 = intermediate shaft bearing
9 = oil pressure switch
11 = pressure valve (opens at 6.5 bars)
12 = oil filter with bypass valve (opens at pressure difference at 2.2 bars)
13 = pressure indicator
14 = oil tank (Sportamatic)
15 = injection valve tar pistons (opens at 3-4 bars)
16 = thermostat (opens to oil cooler at 182°F)
17 = bypass valve (opens at pressure difference at 8 bars)
18 = turbocharger
19 = oil sump
20 = oil return pump