
Originally Posted by
V8Ian
Via the exhaust or ala Land Rover?
Both. You have to understand that this is an inverted engine - the lubrication to the rockers is via oil mist down the pushrod tubes - but there is no provision for return of the oil, just each rocker box has a 1/4" pipe through it up to the level of the rocker shaft, with the other end open, so when the rocker box is full to this level, any excess oil just runs out.
But apart from that they all seem to leak oil everywhere (probably because as a result of making a big engine as light as possible, everything has a bit of spring so gaskets don't stay sealed), and also burn a lot. When starting from cold you have to turn the engine past four compressions to make sure there is not enough oil in any cylinder to cause hydraulic lock. Typically, when first starting after standing for a few days, you have to wait for thirty seconds prior to starting taxiing until visibility improves sufficiently.
The way the oil system works is that there is a large tank behind the engine, and as it is below the crankcase, oil drains into it by gravity (the cylinders stick up into the crankcase), with the oil pump fed from the tank.
John
John
JDNSW
1986 110 County 3.9 diesel
1970 2a 109 2.25 petrol
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