Re: PCV #6 install question - Saab 9-5 Bulletin Board - Saabnet.com
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Re: PCV #6 install question
Posted by Stephen Goldberger [Email] (more from Stephen Goldberger) on Sun, 24 Sep 2006 09:44:20
In Reply to: PCV #6 install question, sully, Sun, 24 Sep 2006 09:07:19
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Sometimes the intake side of the turbo is at near-atmospheric pressure, and at those times the intake maifold is at high vacuum. Other times the intake manifold is at above atmospheric (approaching 2 bar absolute pressure) and at those times the turbo intake is at its highest vacuum. That's been the issue with the PCV system all along, being able to accomodate to varying conditions.
Previously (modification #4) there was no check valve in the line to the oil fill tube, and the result was cold moist air entering the crankcase (just what you don't want b/c of sludge formation) and oil mist entering the turbo inlet (just what you don't want b/c of throttle body fouling).
posted by 24.166.12...
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