Easy fix for stripped exhaust stud holes

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JP147
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Easy fix for stripped exhaust stud holes

Post by JP147 » Sun Dec 20, 2015 12:54 pm

I tried this way of fixing it and it seems to work fine.

A stripped hole is around 10mm, which is the drill size for an M12 thread. I cleaned the hole with a 10mm drill bit, then tapped it to M12 x 1.75.

Then I got an M12 bolt from Bunnings and cut the shank off (I cut it a bit short but that is ok).

I tightened it up with double nuts and then used a die grinder to very slightly enlarge the hole on the exhaust flange so it is easier to put on.

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Looks like it will last and won't end up destroying the hole like helicoils do.
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henpecked
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Post by henpecked » Sun Dec 20, 2015 6:39 pm

good work and post.

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TOONGA
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Post by TOONGA » Sun Dec 20, 2015 9:01 pm

Nice fix if you are unhappy with the length of the new stud get a longer bolt... did you use loctite on the threads?

TOONGA
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JP147
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Post by JP147 » Mon Dec 21, 2015 9:43 am

TOONGA wrote:Nice fix if you are unhappy with the length of the new stud get a longer bolt... did you use loctite on the threads?

TOONGA
The bolt was plenty long, I just cut it a bit short. Still long enough to do the job, the nut was fully on the thread. I used some loctite on the part going into the head.
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Phizinza
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Post by Phizinza » Tue Dec 22, 2015 7:40 pm

Awesome liking the new exhaust now?
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JP147
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Post by JP147 » Fri Dec 25, 2015 3:01 pm

Phizinza wrote:Awesome liking the new exhaust now?
Yeah, it has a nice Subaru sound to it. Probably will bend the mounts a bit to keep it further away from the tailshaft but it is good for now.
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