Oil where it shouldn't be (PICS)
Oct 24, 2006, 01:11 AM
#31
Originally Posted by C6C6CH3vo
The exhaust manifold is sealed tight with the exhaust ports coming out - not the source of oil. The holes the manifold studs go into are.
The oil can leak internally along the threads making it's way to the manifold. If you (machaunga and razorlab) were able to hold a wrench - you could pull one of your exh studs all the way out and see for yourself -
Which is not the case here, sounds like he's leaking oil from the head. What you wrote shows your leaking "mechnically disabled" from the head
The oil can leak internally along the threads making it's way to the manifold. If you (machaunga and razorlab) were able to hold a wrench - you could pull one of your exh studs all the way out and see for yourself -
Which is not the case here, sounds like he's leaking oil from the head. What you wrote shows your leaking "mechnically disabled" from the head
Oct 24, 2006, 09:46 AM
#32
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i have seen this quite a few times on multiple different engines. Most of the time it is nothing to worry about at all. Alot of times when people remove heads or just replace headstuds a minimal amount of oil can seep out before the head is torqued back down, which over time as most people that have seen with oil is that it will thin out and coat a large area and stay there for a really long time. All it looks like to me is an oil film that was left there from the head job. I would not worry about it too much. But you never know. That is just my two cents. But I have seen this alot.
Oct 24, 2006, 12:38 PM
#33
Originally Posted by sonicnofadz
Ummmmmmmmm...no, you are wrong. Oil CANNOT leak from the exhaust studs. If you ha......... You must be smoking some awesome ****!
Oct 24, 2006, 05:02 PM
#35
Originally Posted by C6C6CH3vo
Nah, dont smoke. The EGR system taps into the exhaust port of the cylinder head to the combustion chamber from the internal port within head which may carry oil vapor in addition to the NOx the system is trying to recycle during normal driving. Since the EGR system is closed under boost, trace amounts of oil may find it's way eventually to one of the internal stud threads and is superficial. Usually this occurs after someone dicks around with the exhaust manifold breaking the factory thread compund seal
Oct 26, 2006, 01:09 AM
#43
You put the UV oil dye in with the engine oil. You turn out all the lights in the garage, and let the engine idle. Take out your favorite black light and shine it in the suspected area. Motor oil will show up as bright neon green or neon orange in the black light. If it is leaking from the headgasket, you will see it with the blacklight. If it is leaking from the exhaust studs (*giggle*) it will show up in the light. Give it a shot! The dye costs $6.99 at autozone...
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