Quote:
Originally Posted by olds45512
did you brake the tap extractor off? been there before. 
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Nope. Broke a tap. Had a broken exhaust manifold bolt break on a 6.0 chevy gas. (Like a million of them are.) Front on the left head. Took my right angle drill and drilled it. It's a M8 bolt, hardened, and lock-tite'd in. Drilled out the bolt, and went to tap the threads. Got about halfway down the hole, and suddenly got tight. Then SNAP!....

Loooooong story short. Pulled the head. Tried to mill it out. Couldn't. Tried everything. It was stuck. Chipped out what I could. Drove it to the bottom of the hole. Heli-coiled it, and cut the new bolt off short. Hole was deep enough that the entire heli-coil went it, so it was all good. The new bolt was in contact with all the threads that it could. Storal of the morey, (let's see who gets that reference)..... weld a washer and nut to them and pull them. That's how I usually do it, but it was up there next to the temp sensor and I didn't want to drain the coolant, plus it was hard to get to. 4hr job, turned 4 days.