 Source for enlarged exhaust Stud |
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| srb7f |
 Mar 17 2006, 09:09 PM
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#1
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Member  Group: Members Posts: 157 Joined: 17-May 04 From: Roswell, GA Member No.: 2,077 Region Association: None  |
Snapped a rusted off exhaust stud off, and ended up mangling the threaded hole to get the remnants out. Anybody know where I can buy an exhaust stud with one end enlarged to 10mm diameter? Any other solutions you guys have done in the past? Thanks, Steve
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| Joe Bob |
Mar 17 2006, 09:13 PM
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#2
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Retired admin, banned a few times Group: Members Posts: 17,427 Joined: 24-December 02 From: Boulder CO Member No.: 5 Region Association: None |
I used a heli coil...how bad is it?
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| Brian Mifsud |
Mar 17 2006, 09:13 PM
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#3
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Mechanical Engineer Group: Members Posts: 981 Joined: 3-March 03 From: Penngrove, CA Member No.: 384 Region Association: None |
McMaster-Carr has everything. If you can't find one with the "mixed sizes", you can fix the buggered up hole with a helicoil.
Otherwise, it can be welded up, bored and retapped to orginal if you are concerned about originality. McMaster-Carr I found quite a few pieces of obscure metric hardware for my Moto Guzzi restoration 10 years ago which were PERFECT replacements. |
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| john rogers |
Mar 17 2006, 09:19 PM
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#4
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Senior Member Group: Members Posts: 1,525 Joined: 4-March 03 From: Chula Vista CA Member No.: 391 |
Try to find a VW or off road parts shop as they carry those studs. In the San Diego area they sell them at VParts among others. They also come in different lengths.
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| srb7f |
Mar 17 2006, 09:25 PM
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#5
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Member Group: Members Posts: 157 Joined: 17-May 04 From: Roswell, GA Member No.: 2,077 Region Association: None |
The heli-coil is my last resort, as it would indeed work. I'm not concerned about originality, but I just figure a larger stud would have greater strength from a greater length of thread; I heli-coiled one of them on the 1.8 I have in the car right now, and it usually threads out everytime I drop the exhaust. Since I'm in no hurry, I should be able to find the stud for the 2.0 that's going in in the next couple months. Steve
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| Aaron Cox |
Mar 17 2006, 09:29 PM
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#6
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
FAT performance
Car craft in riverside CA try raby first.... |
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| Al Meredith |
Mar 18 2006, 07:59 AM
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#7
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Senior Member Group: Members Posts: 960 Joined: 4-November 04 From: Atlanta, ga Member No.: 3,061 |
I beleive AA sells a 9MM (first cut) and a 10MM stud. It is 8MM on the manifold side.
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| Jake Raby |
Mar 18 2006, 08:11 AM
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#8
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
I have 8mm versions, 9mm versions and the whopper at 10mm . All these are chromoly steel and won't break!
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| Bartlett 914 |
Mar 18 2006, 09:38 AM
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#9
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Advanced Member Group: Members Posts: 2,215 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
Heli coils can pull out. I had one that was ruined. I used a threaded insert. This is a called a "KeyLock Thread repair kit". I got it from McMaster Carr. You drill out the hole for a 12 x 1.25mm thread. I needed to grind my tap to get to the bottom. The insert is threaded in this hole. There is then a tool that is in the kit that is used to drive 4 small keys that are along the outside of the insert. This Locks the insert in place. The Insert is Stainless Steel. This was not cheap but made a very good repair.
Mark |
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