08-21-2012, 05:05 AM
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CC Member
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Join Date: Jul 2005
Location: Virginia Beach, Va & Port Charlotte, Fl.,
Posts: 2,292
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A little negative crankcase pressure is good for the engine. It keeps things well ventilated, recircs/burns unburned hydrocarbons and actually does help ring sealing, to a small degree. Plus, it's always embarrasing to me to have visible vapors coming out of your valve cover breathers.
The way Brent sets his up is the same way I do, breather in one valve cover with the PCV in the opposite one. It sets up a nice cross-flow ventilation through the engine.
Two thumbs up for the venerable PCV!
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