Mystery oil leak even more confusing. - Ford Powerstroke Diesel Forum
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Old 10-19-2013, 05:38 PM
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Mystery oil leak even more confusing.

Ok. So engine is out. Sitting on floor.
I'm still stumped on oil leak. It only leaks when engine is running. If it sitting parked, won't drip a drop, once the left over oil has drained off inspection plate.
So I know it's not oil pan (that was replaced already).
Doesn't seem to be rear main. Bell housing is covered in oil but flywheel isn't.
Fair bit of gunky oil around rear of drivers side head, all way up to plenum cover.
It looks like head gasket but I'm having hard time believing it is since oil is present above head gasket. Along bottom edge of plenum cover around bolts.
The ccv cover gaskets are shot. Took it off and they were in pieces. Could this be issue? Small amount of oil around cover but hasn't been running down, valve cover is clean.
Oil rail plugs are dry. Havnt pulled flywheel yet to check rear engine cover.
Mystery oil leak even more confusing.-image.jpg bit dark, I'll take more in daylight tomorrow.
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Old 10-19-2013, 05:55 PM
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have you verified the ebpv piston on the pedestal isnt leaking? or even the pedestal to block orings.

im giving you everything i can think of, if only someone else would chip in.

i would think you would see coolant leaking as well if it was headgasket.
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