Quote:
Originally Posted by twobjshelbys
That link is one of the automatic links. You'll have to use forum search for "catch can". In essence, one side has positive pressure (the side with the PCV, which is why catch cans work, and the other side will be neutral or small vacuum (which is why catch cans on the other side don't get anything unless something is awfully broken). The PCV has to be on the high side.
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That is a mechanical impossibility. Crankcase pressure is ALWAYS the same within any engine, left to right, top to bottom. Unless we have multiple crankshafts geared to together like in a square 4 or tandem twin.