351W crankcase evacuation

[jse9]

Moisture buildup can occur in the lines between the tank and the engine, and end up running back into the engine, but only in the winter. It's not the fact that there's a hole in the engine that causes the moisture buildup, it usually comes in from the lines outside of it (long oil filler necks = bad). As far as venting directly over the crankcase, look at the factory PCV setups on engines that use valley pans (ex. Pontiac), they always vent from there. I don't have to worry about cold temps here in CA so moisture in the lines won't be a problem. The only other moisture sources are not ventilating well enough, or obviously a blow head gasket.

Thanks for the heads up though, if I lived anywhere else in the country I would have done this differently, like routing the lines in a downward fashion so moisture that collected could only run away from the engine.