| [GMCnet] Broken exhaust manifold bolt(s) [message #178986] |
Sat, 04 August 2012 15:40  |
Mike Teets
Messages: 299
Registered: January 2004
Location: Dublin, OH
Karma:
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Senior Member |
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I am attempting to pull my exhaust manifolds as they are badly leaking
above the center two ports. I soaked them in kroil. They look to be the
OEM bolts except for some grade 8's on one of the outside ears. I thought
things were going well as I could just tighten them a little with a bump
then back them out. Didn't take much pressure at all. Then I got to the
passenger side. The bolt just rear of the two ports broke off under just a
bit of pressure. The bolt above the two ports is also stubborn. It is
feeling like it will break off as well.
Can I drill these out with the head in place or do I have to pull the head?
The only time I have done this before is with the engine out on a stand
and it was 30 years ago. Any advice?
Mike,
77 PB, 403
Dublin, Ohio
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Mike, GMCing since 2002
77 Palm Beach, 260, 403
Dublin, OH
http://teamteets.com/gmc/
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