The oil distribution in
the L81 engine is as follows:
| • | Suction from the crankcase via the oil intake pipe to the oil
pump |
| • | Oil pump to the engine oil cooler |
| • | Engine oil cooler to the oil filter |
| • | Oil filter to the following: |
| - | Main bearings 2,3 and 4 |
| - | Oil pressure regulating valve and the number 1 main bearing |
| - | Cylinder heads, camshafts and lifters |
| - | Oil ventilation nozzles in the cylinder heads |
In the event that there is a restriction in the oil cooler lines, the
oil pump will bypass the cooler to provide adequate lubrication.
