Date: Sat, 2 Nov 2002 09:38:50 -0500 From: "g c" <nbtrownopsamet.on.ca> Subject: crankcase ventilation
This might be an interesting problem.....! Hope someone else has solved it cheaply! Car is a '92 900 Turbo, manual, about 165,000 km (100,000 miles) When running, the oil filler pipe emits a light hazy pulsing vapour, and the crankcase ventilation pipe (large diameter) is under pressure, not excessively high, but pulsating and felt on the palm of my hand. There >is< a check valve in the small diameter line to the manifold, it is in the right way round and sucks >out< of the valve cover. I've had higher than I'd expect oil consumption for a while, and some drips from the valve cover gasket. My first thought is a leaking valve stem pressurising the valve cover and crankcase... Anyone got any less expensive thoughts? Thanks in advance....
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