How did you correct the shallow hole issue? Or is the bolt hole not tapped all the way down? Meaning you just ran a tap in there? Which holes are the trouble makers?
LLY: headgasket replacement
- Thread starter bigaland4gals
- Start date
Valve cover gaskets will leak, basically the stud hits the valve cover and won't let it seal..
All the studs are the same length. It's probably a 1-2 thread difference and since gm head bolts don't bottom out it doesn't matter in their application.
If valve covers leak pull me back off, grind a little on the cover where the stud is hitting and re install..
Sent from my iPhone using Tapatalk
I had the leak/valve cover problem my first time around. Second time I cleaned the threads out with a tap and got the stud to seat all the way down without issue. Not sure what caused it the first time but I don't think the holes are shallower.
It's not an issue on all LLY's I think the tap didn't run all the way in the hole at the factory. I'm pretty sure chasing the threads with a tap corrects this problem.