Vehicle & Technical > Discovery

Weird oil burning problem

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500bhp:
I really need some help with this, my Disco is the 2 ltr petol version, and it has a weird problem with smoking badly on the over run of the engine. On throttle its fine but foot of say going down hill it smokes really bad, it would put James Bonds smoke screen to shame. The head has been rebuilt, compression seems fine, non of the engine oil breathers that go into the inlet manifold seem to have oil in them. so I am stumped any ideas ???????????.........Help

waveydavey:
Not an engine I am that familiar with but it could be worth checking out the fuel injectors. If Petrol is leaking past them it could be burning without air. Put it on load and it gets the air and proper atomisation to burn.

500bhp:
The problem is the same if it runs on petrol or gas, its definitely oil burning as the level is dropping on the dipstick....but thanks for the suggestion

beast5680:
sounds like it is dragging oil down the valve stems on overun? i dont know the engine but i have seen this happen on others

muddysteve:
i'd go for valve stem seals too

may even be worn valve guides


Steve

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