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| Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars |
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04-29-2014, 11:30 AM
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#22 |
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Zilvia FREAK!
 Join Date: Nov 2007
Location: Orlando, Fl
Age: 38
Posts: 1,250
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What about the one way check valve that locks the pcv shut under non negative pressure? If it' didn't you'd pressurize your crank case. Technically the engine on anything other than idle or de-accel condition is pushing that oily scum towards the "can".
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