Crankcase Ventilation

[Bobby DiDomenico]

Originally Posted by eddie c

Yes, That was another trick,You were supposed to run the front crank seal backwards and also, if possible, turn around your rear main seal.
ed

Can you actually pull enough where the seals would become an air leak?
I was guessing this is mostly extra carburetor cfm, just not using hollow bolts n things.

[Ron Gusack]

Originally Posted by FED 387

Late 60's-early 70's GM Power brake check valve on the valve cover & then hose to the intake manifold and DO NOT forget to turn the main seals around!!!-- FED 387

It's hard to see in my photo, but the brake booster check valve is there. I've run the seals backward but didn't see a gain in vacuum on the gauge. I was recently told that the seals only needed to be turned when using a pump. If I install a puke tank designed for a pump, do you think it would fix my oil in the intake problem?