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Helicoil exhaust port bolt hole

PostPosted: Wed Aug 31, 2022 11:43 pm
by Bryan Cotton
Hey guys,
I was trying to put my exhaust back on and one bolt wouldn't screw in nicely. I'll try and clean it up tomorrow but the Force tells me I may end up with a helicoil here. Anybody else been through this?
buggered exhaust hole.jpg

Re: Helicoil exhaust port bolt hole

PostPosted: Thu Sep 01, 2022 7:08 am
by T41pilot
Definitely go with the Helicoil. I tried to clean mine up when that happened and it didn't hold up. I bought a Helicoil kit on Amazon that included the coils, tool and proper size drill bit. The install was easy. What a difference! The connection felt much more solid and I felt I could snug it down a bit tighter than before. I was tempted to do the rest right then and there but didn't want to take my exhaust loose since it was difficult to get on in the first place. I don't remember the size off the top of my head right now. I'm sure someone will chime in with their opinion as well but my vote is for Helicoil.

Re: Helicoil exhaust port bolt hole

PostPosted: Thu Sep 01, 2022 8:50 am
by Bryan Cotton
Thanks Gregg! They are M8x1.25. I already have the kit as Adam stripped one of the fuel pump blockoff plate holes years ago.

Re: Helicoil exhaust port bolt hole

PostPosted: Thu Sep 01, 2022 2:27 pm
by Bryan Cotton
It's always sad when you have to take off the baffles, especially with all that nice cured RTV to deal with. That stripped hole is now helicoiled and I resisted the temptation to do the other 3 (or 7 if you prefer).
helicoil exhaust hole.jpg


helicoil installed.jpg


I used primer on the helicoil and red loctite in the hole.