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Registered
Join Date: Jul 2013
Location: Brisbane, Australia.
Posts: 2,628
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I'm no expert....
if you remove just that nut, is the stud oily?
I think the only way oil can get down the stud, is if it leaks past the gasket that surrounds the stud. Maybe there is some old sealant that needs to be cleaned a little more from either the cam housing or the valve cover in that area...might be time to put a drop of sealant around the base of the stud to try and pin the leak.
good luck...
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