Quote:
Originally Posted by futuresvt
Yea I've read that one and a few others but the bolt I'm referring to isn't the one under the oil filter housing. My broken bolt must have came from under the valve cover or some where internal since it was sitting inside the oil pan.
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I dont think there is a way for a bolt head to migrate from the valve cover to the oil pan.
Early N52s have had some issues with overtorqued bolts. Both on the top and bottom. The bolts are made of aluminum to save weight.
It may have been in there since the engine was assembled (I doubt it) or dropped in during another repair?
The only way to know for sure is to drop the pan and make an inspection. It sounds like your mechanic has already done this.
let us know how it works out.