bonecrusher

I have 540ci with 3.3 whipple charger that i'm experiencing increased crankcase pressure. Most significant with high RPM's i am getting oil blow out thru the distributor. Has anyone experienced this before? Would this be rings that did not seat properly? The motors have approx. 20hrs on complete rebuild. Thanks for any suggestions.

cstraub

What type of ventilation do yo have in the valve covers?
Are you running a vacum pump?
How big are your oil pans? Have you tried running them a qt low to see if this helps the problem?
What is the oil temp and oil pressure?

Gary Anderson

Through the distributor? That's kind of unusual. No signs from the oil dipstick tube or breather? Wondering if it's the seal at the base of the distributor that's leaking. Is the oil in the distributor or around the base?

WETTE VETTE

If you have an adjustable slip collar on your distributor it is likely coming from the gap. I had the same problem and finally pulled the distributor out and used some silicone to glue the gasket to the collar and fill the gap. It worked like a charm.

Craig

zahndok

You may have a bad seal on your intake. Consequently your blower can pressurize your lifter valley. If not your intake which is easy then you may have a broken ring. Been here. Would have to say though that I would think it would be puking out the breathers and dipstick as others have said before the distributor.

bonecrusher

Just pulled the motor and tore apart. It was a blown head gasket going into lifter area. Thanks for all the input.