Engine Lubrication: Description and Operation

Lubrication Description







The oil distribution in the LA3 and LY9 engines 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 main bearing 1
+ Oil ventilation nozzles in the cylinder heads

- Oil return galleys to crankcase.