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 |
lapuwali |
Aug 9 2005, 11:35 AM
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#2
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743 |
Conversely, I've never had ANY luck with an EZ out on any stud on the exhaust side of any engine. 100% failure rate here. I've resorted to EDM a couple of times, and drilled out and helicoil'd a couple of times. On the intake side of a couple of engines, I've been luckier and never even needed an EZ out. The stud usually just spun out on it's own, or succumbed to the "cut a slot and use a screwdriver" trick.
All the more reason I'm getting a stub-tubed header for my /4 ASAP... |
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