Exhaust Studs Broken.., need suggestions. |
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Exhaust Studs Broken.., need suggestions. |
DougC |
Aug 9 2005, 11:05 AM
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#1
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Senior Member Group: Members Posts: 949 Joined: 6-July 04 From: Dallas, TX Member No.: 2,307 |
OK, I have 3 broken exhaust studs on my 2.7 six. All but these three came out easily but these 3 were never going to move! I spray (for several days) with PB blaster, used a torch and nothing worked. Finally I bent one on purpose because I was at my wit's end and eventually broke it. I went ahead and cut the other two off in preparation for drilling. I have drilled out the originally broken one and tried using an "ease-out" but no luck (of course). I'm at the point where I can actually tap the hole for the original thread size. What size tap do I need to buy?
Doug C |
ArtechnikA |
Aug 9 2005, 12:49 PM
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#2
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
if you happen to have (or borrow) a copy of Pelican Wayne's "101 Projects" book, he shows the process being done in-situ on a 911 at a shop. there are services that will do it onsite (at least in SoCal).
there *are* (or were...) "stepped studs" or "repair studs" that are M9 on one end and M8 on the other for exactly this application, but i had no luck actually finding them the last time i looked. i understand your desire to have it done now, for no additional cost, but it has to be dealt with, and done right. it might cost a couple hundred bucks to have a qualified machine shop extract the studs. people *have* done this job in-place, from under the car, with a proper drill jig (i've seen them on the Birdie board too...) i'd think your chances of success would be better if you had the engine out, flipped over, working from the top on a rigid bench... |
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