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Cracked my engine case at exhaust mount

 
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KX_Larry
Member


Joined: 07 Nov 2018
Posts: 6
Location: Colorado
Roughhouse 50

PostPosted: Wed Nov 07, 2018 4:27 pm    Post subject: Cracked my engine case at exhaust mount Reply with quote

I was mounting my prima exhaust and wasn't paying attention and put the wrong bolt in and it cracked the case. 90% of the internal threads are still good and I was just going to mount the exhaust and then put some J&B Weld on the cracks. Crying or Very sad Any other thoughts
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Stanza
Member


Joined: 29 Jan 2018
Posts: 240
Location: Chicago
Puch Maxi

PostPosted: Wed Nov 07, 2018 6:15 pm    Post subject: Reply with quote

Drill out the hole clear to the other side, jb the crack together, and put a nut on the other side.
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KX_Larry
Member


Joined: 07 Nov 2018
Posts: 6
Location: Colorado
Roughhouse 50

PostPosted: Wed Nov 07, 2018 6:31 pm    Post subject: Reply with quote

How about a longer threaded bolt that goes all the way through and put a nut on the back. I'm not sure I want to drill the whole out completely.

I was thinking of bolting on the muffler then applying the JB. My one concern is the JB will go through the crack and lock the bolt into place. I need to get the bolt out in the future. Maybe I can work the bolt a little before the JB sets or put a little oil on the bolt so the JB doesn't stick to bolt?

Other option would be to screw in a stud and lock it in place with a half inch or so sticking out. Mount the muffler and put a locking nut on it.
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KX_Larry
Member


Joined: 07 Nov 2018
Posts: 6
Location: Colorado
Roughhouse 50

PostPosted: Sun Nov 11, 2018 9:15 pm    Post subject: Reply with quote

Fixed. Couldn't go all the way through or put a nut on back. Used a slightly longer bold with loctite since I was missing some threads at the start. Applied some JB weld at the crack, I'm not sure it really did much if anything but it's on there.
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