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Oil dripping from exhaust manifold stud
Posted: Tue Jul 05, 2011 10:33 am
by spandit
I've always had a problem with oil leaking out of the manifold stud on cylinder 4 (the stud closest to the chassis). When I took my manifolds off the other day, found that some bozo had jammed a 10mm stud in there, obviously not realising the cylinder head had Helicoil inserts in it. I replaced the insert and fitted an M8 stud. However, it's still leaking quite badly - should this be stopped by the gasket (new) or is the head punctured in some way?
Re: Oil dripping from exhaust manifold stud
Posted: Tue Jul 05, 2011 10:43 pm
by Winter Beater
Is the drip from the stud directly or could it be the oil return line has a bad seal and the oil gets blown onto the manifold?
Re: Oil dripping from exhaust manifold stud
Posted: Wed Jul 06, 2011 3:07 am
by spandit
Directly from stud - you can see it dripping
Re: Oil dripping from exhaust manifold stud
Posted: Wed Jul 06, 2011 10:24 pm
by Winter Beater
Sounds like the previous owner drove the oversized stud through the head into the lifter area. My heads are already reinstalled otherwise i could check to see if that actually possible. The lifter area has oil pumped into it and it returns through the lower tube. Tube seals can leak that is why I asked about the exact location of the leak.
Re: Oil dripping from exhaust manifold stud
Posted: Fri Nov 13, 2015 1:34 pm
by waterdog
old posts i guess..... but did you fix the problem?? found the culprit?? i have the same leak, i need some pointers...