Quote:
Originally Posted by dtrally
No, you misunderstand. The can can be mounted anywhere, but the point at which the drain enters the engine cannot be subject to crankcaase pressure. The only way it will work as a drainback is if the fitting goes in below oil level, like into the sump itself.
That was my point about getting LF to make one that suits the new pipework and actually works.
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The way to eliminate the crank case pressure issue is to install a PCV in the drain line to prevent pressure going to the can but allowing the oil to drain back when pressure is not there. ie. whenever the engine is shut down. Simple and effective, one way valve.
Further-more the entire engine internals are subject to crankcase pressure including the oil in the sump, basically you could install a pressure gauge just about anywhere on the crankcase and record the internal crankcase pressure, even at the sump plug! (slighty false reading due to oil having a minor head pressure)