Ford Racing 427 burning oil

[dallas_]

Will do.

I did a crankcase pressure test to check the intake gaskets. (That's what the Ford technical support guy said was probably the issue) That is not the problem.

I'm pulling it out and sending it back to Ford for them to look at.

They guy who dyno'd mine thought there may be an issue with the oil supply/return path. When they initally spun up the oil pump, the large volume of oil to the heads seemed to overwhelm the drain path. This could possibly manifest itself in excess oil through the seals.

[68pony]

Originally Posted by dallas_

Will do.

I did a crankcase pressure test to check the intake gaskets. (That's what the Ford technical support guy said was probably the issue) That is not the problem.

I'm pulling it out and sending it back to Ford for them to look at.

They guy who dyno'd mine thought there may be an issue with the oil supply/return path. When they initally spun up the oil pump, the large volume of oil to the heads seemed to overwhelm the drain path. This could possibly manifest itself in excess oil through the seals.

Yes the drain back holes on the z heads on this motor are crap and combined with the HV oil pump can cause flooding at the top end, i did buy a standard oil pump and was going to fit it but seeing the new valve guides has fixed the problem i am holding off.
cheers chris.