Originally Posted by
AK83
I'm 99.99999% sure the bolt for the tensioner should be a stud and nut.
So ideally: if yours is really a bolt and not mistakenly taken as a long bolt but is in fact a stud and nut, is there enough clamping force on the threads in the housing where you could locktite the stud in place.
When you remove the tensioner, and a stud/nut is fitted, the nut is the only part that should come off.
If it's totally stripped out and won't give any tightness at all, I personally wouldn't use loctite on the stud in that situation because you can't ensure a truly straight fitment.
Also given that you mention bolt, but I think it's supposed to be a stud/nut system, if you do find it's a nut and stud and not a bolt, make sure that the long section of thread is in the housing and not on the nut.