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Abnormal Oil Consumption
Posted by AlanCrosby (more from AlanCrosby) on Tue, 30 May 2000 18:20:14
In Reply to: , Kok Chen, Sat, 17 Dec 1988 12:00:00

I'm describing an '83 900 (200k miles)and an '88 900 turbo (155k miles).

On each car 2 hoses, one large, the other small, take oil vapor from the
crankcase to the intake manifold. These hoses attach to a fitting at the top
of the valve cover. The small orifice in the fitting was plugged on each car.
Each car was losing or burning oil.

Could the plugged orifice cause oil to be sucked into the intake manifold?

If yes, how does the plugged orifice cause oil to go down the larger hose?

Thanks.

Alan
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