Anyone use Loctite thread repair?
The story: noticed the jeep getting louder, so i figured the header pipe loosened up again. no big deal, been here, tightened that. Well, no dice. hmmm, ok, start hunting (this is sooooo much easier without the mechanical fan constantly blowing air around, lol). anyway, closer inspection reveals the lower front bolt on the exhaust manifold is loose, hence the really annoying exhaust leak noise. ok, go to tighten it up and as you may have guessed by now, all i get is spin spin spin. turns out someone fitted this hole in the past with a helicoil and i guess the vibrations finally finished off what little purchase it had left. guess that explains why that bolt was different the last time i did the manifold gaskets. Well, as it stands now I've got a loose manifold and a hole that's all but drilled smooth. I really don't want to take the whole manifold side of the engine apart to get my drill in there to retap the hole (9/16" course threads will thread in with a bit of tension, so i'd have to go at least 5/8" if i retapped) and the helicoil sizes i've found local are either too small (closest is the same size that was in there and is now too small) or would require more drilling to make it fit. anyway, I did find this product from Loctite that is supposed to act like an epoxy to refresh the threads. ie coat the bolt with this chemical, coat the hole with that one, thread in, let set, torque to spec. It says right on the box, good to 128 ft-lbs, +300°F. Now, my thinking is what have i got to lose, only $7. if it fails i'll be drilling, but hey, give it a shot right? just wondering if anyone's used this stuff before with any success?
RIP: '88 YJ 2.5L Ax-5 NP231
Posi-Loked. Herculined. Optima yellow top. 1" Shackle, 2" BDS. Cragar 397's Aussie front.
92 YJ 4.0L Ax-15 231
5" springs, 1" shackle 31's or 35's depending on my mood