Question about 1994 Land Rover Discovery

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Fuel in oil, rover 3.9 v8

Hi!
The engine was not running well, we stripped it and found a snapped rocker shaft and fuel in the oil.
What has happend if we have got fuel in the oil?
thanks
chris

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If your rocker shaft was busted and the valves were not opening, alot of the unburned fuel in those cylinders will end up in the crankcase. the problem is that fuel dries things out and hinders lubrication, the crankshft and camshaft bearing and journals can become damaged. fix your rocker, put fresh oil in, then change it a second time after about an hour of running, use a quality oil additive like MOA or Lucas stabilizer in the second change. low oil pressure can indicate worn crank and cam bearings and or journals.

Posted on Mar 16, 2009

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Posted on Jan 02, 2017

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Hi,
are you serious? Aside from that question. If there are rocker arms missing it could affect the oil pressure. Are the oil feed holes in the area of each missing rocker plugged off?

Perhaps I had better back-track here. If the oil lube system has no restrictions in it then there will be minimal oil pressure developed. The oil pump will be pumping oil to the lower end of the engine and that will be where oil press if any will be developed.

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