Need torque spec on brake caliper bolts
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
Re: Need torque spec on brake caliper bolts (Oldman)
For my 92 the service manual says front caliper bracket bolts 166 plus or minus 15 ft. lbs which is same as the Chilton specs Oldman posted.
Rear brackets are 70 ft. lb. Also, upper guide pin bolt is 26 ft.lb. and lower guide pin bolt is 16 ft. lb.
Rear brackets are 70 ft. lb. Also, upper guide pin bolt is 26 ft.lb. and lower guide pin bolt is 16 ft. lb.
Elite Torch Red Member
Joined: Sep 1999
Posts: 57,805
Likes: 23
From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
Cental/South NJ Events Coordinator
CI 1-2-3-4-5-6-7-8-9-10-11-12 Vet
CI-II Burnout & Drag Champ
St. Jude Donor '03-'04-'05-'06-'07
Re: Need torque spec on brake caliper bolts (Lone Ranger)
There was a bulletin out about the Helms manual stating the wrong torque specs. They were too high, I forget exactly what the correct # is. I'm pretty sure 70 lbs/ft for the rear is correct, I believe the fronts are either 90 or 120, I've forgotton already.
Melting Slicks
Joined: Jun 2000
Posts: 2,923
Likes: 1
From: Las Vegas NV
Re: Need torque spec on brake caliper bolts (Lone Ranger)
My 1988 manual read 137 ft-lbs for the front caliper. Its also said to use loctite. Re-torque once more. Don't remember the rear caliper spec.
For mine experience, be sure to tighten the bolts quickly to torque spec. the last time I use a different loctite stuff at a friend garage, it dry too quickly and by the time I got the torque wrench on it was137 ft-lbs :rolleyes: . There was no way I can tight that bolt to 137lb with the short racket before going to the long torque wrench
For mine experience, be sure to tighten the bolts quickly to torque spec. the last time I use a different loctite stuff at a friend garage, it dry too quickly and by the time I got the torque wrench on it was137 ft-lbs :rolleyes: . There was no way I can tight that bolt to 137lb with the short racket before going to the long torque wrench
Melting Slicks
Joined: Jun 2000
Posts: 2,923
Likes: 1
From: Las Vegas NV
Re: Need torque spec on brake caliper bolts (Mr Mojo)
There was a bulletin out about the Helms manual stating the wrong torque specs. They were too high, I forget exactly what the correct # is. I'm pretty sure 70 lbs/ft for the rear is correct, I believe the fronts are either 90 or 120, I've forgotton already.
For what I know, my 88 Corvette and my 93 Lexus SC400 have the same over all wheel diameter. The brake rotors (standard rotors) are about the same diameter, 12", but I think the SC400 rotor is 32 mm thick. The torque for the wheel nuts on the SC is 76 ft-lbs while the Vette is 100 ft-lbs. Torque for the brake caliper on the SC is 87 ft-lbs and the Vette is 137 ft-lbs.
That's a big different and the SC400 is much heavier than the Vette...
