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Old 07-11-2018, 12:00 PM   #1  
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Torquing bolts - loctite blue

Hi there - I'm torquing nuts today for a set of rear bearings and I want to double check before I do.

So the spec is 33 ft/lbs for the nuts that go onto the rear bearing studs, plus 30 degrees of turn. Does that jive with what you folks know?

So my plan is to loctite the studs as I put the bearings into the flange, and then tighten the nuts to spec.

Question: So I'm using the BLUE loctite - is this permanent? Also, the manual doesn't say to use loctite, so if I do use it, do I have to adjust the torque spec (i.e., dial it down) assuming the loctite might act as a grease (e.g., and kind of 'fake out' the torque wrench - which has been sitting around for a while) while putting the nut onto the stud?

I'm new to car repairs son this might seem like a naive question (or a stupid one) but I'd rather get it right the first time.

Also, studs stretch - if I stretch the stud, can it be removed and re-torqued, or will the stretch weaken the stud so it can't be torqued to spec? SO these studs can't be re-used or can they be re-used?

Last edited by OhSixBalt; 07-11-2018 at 01:09 PM. Reason: word corrections
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Old 07-11-2018, 01:14 PM   #2  
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Yes, gm si states 33ft lbs with 30 degrees final pass using a cross pattern, first pass 33ftlbs on all four nuts then 30* pass after that. Using Loctite isn't recc in this case because one, using it would affect the torque rating and two, the factory nuts should be selflocking on their own and "can" be reused. I say "can" because they are resuable a few times before the self lock wears out. The studs are reusable so long as you don't exceed the torque spec and stretch them. Any spec on parts calling for Loctite has been adjusted accordingly to expect Loctite because it will act as a mild lubricate until it sets.
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Old 07-11-2018, 06:10 PM   #3  
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Thank you for the good information. I'll get on the job now - loctite not useful in this case.
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Old 07-11-2018, 11:01 PM   #4  
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Originally Posted by OhSixBalt View Post
Thank you for the good information. I'll get on the job now - loctite not useful in this case.
Loctite is needed way less often than you expect.

Only use it when required. Also less is more. Trust me.

Anti seize on the other hand is the greatest thing ever.
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