Easy fix for stripped exhaust stud holes

JP147 · 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.

Looks like it will last and won't end up destroying the hole like helicoils do.

henpecked · Post by **henpecked** » Sun Dec 20, 2015 6:39 pm

good work and post.

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

JP147 · 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.

Phizinza · Post by **Phizinza** » Tue Dec 22, 2015 7:40 pm

Awesome liking the new exhaust now?

JP147 · 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.