17th July 2019, 06:01
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#8
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This is my second home
Rover 75 Tourer+
Join Date: Mar 2011
Location: Radcliffe on Trent
Posts: 10,711
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Quote:
Originally Posted by Mike Trident
The crankcase ventilation system vents into the inlet, the oil build-up comes from there. If you have a leak at the joint, two things will happen.
1, the oil mist from the crankcase venting system will leak out as there is air pressure from the turbo at those seals. leaking out will make an oily mess!
2, because you are leaking air pressure, your engine is not receiving the air it should be getting, but it is still getting the fuel. So, your engine is being over fueled, which is what causes the black smoke.
Hope this explains.
Mike
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Yes is does many thanks.
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