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80 in-lb caliper screw?

445 Views 3 Replies 3 Participants Last post by  rockyuphill
Juicy Ultimate manual specs 70-90 in-lb caliper mounting screw torque. The torque wrench employed seems OK.

Even at 60-70 in-lb brake drag is definitely beyond the pale. At lower torque values no drag whatsover is detected.

Pads were sanded smooth w/ fine paper then cleaned w/ denatured alcohol, back/piston side of pads were cleaned, compressed air was employed to clean the calipers, dry/silicone lube applied to slightly exposed piston circumference.

Help poor wittle helpless jimmy!

jimbo
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You definitely want to torque the caliper mounting bolts to spec. If you're experiencing drag, it's for some other reason altogether. (Misaligned pads, warped rotor...)

Edit: Is the caliper moving from its (presumably aligned) position when you torque the bolts that last little bit?
KevinB said:
You definitely want to torque the caliper mounting bolts to spec. If you're experiencing drag, it's for some other reason altogether. (Misaligned pads, warped rotor...)
I had a feeling that may be the case. No visible rotor warp. Will start checking for other problems.

Edit: Is the caliper moving from its (presumably aligned) position when you torque the bolts that last little bit?
Yes, I think so. Will re-check & report back to class.
A little bit of grease on the CPS washer stack directly under the caliper helps reduce the last turn squirm when you get the final torque applied.
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