PCV, advantage or not?

[Bub Whitaker]

Originally Posted by junior barns

what does PCV stand for?

Positive Crankshaft Ventilation, It's a hose from an intake vacume sorce, carb or intake manifold, that draws air thru the engine to remove water and fumes. What they are discussing here is using this vacume source to create a vacume in the pan by sealing off all breathers to aid ring seal, if it's good enough...