Brake caliper bolts - Page 3

crogthomas · Aug 7th, 2015, 09:53

Nicely done. What do you do for a day job?

You've shown that the bolt won't shear if it were loose. Now you need to confirm that a 8.8 can provide enough clamping load to prevent the caliper moving when done up correctly. And what is the recomended tightening torque for these bolts anyway?

leftfootleashed · Aug 7th, 2015, 10:57

Thanks. In pointing out that I've accounted for loading in shear but not in tension you've revealed me as a lowly electrical engineer rather than a "proper" mechanical engineer :-)

Honest989 · Aug 8th, 2015, 09:29

90-110nm torque for front calipers
52-64nm torque for the rear

Thanks leftfootleashed -email coming now. I just had Irwin bolt extractors arrive!

Aug 7th, 2015, 10:57	#22
leftfootleashed Perma-scarred Knuckles Last Online: Jan 30th, 2024 21:02 Join Date: Mar 2012 Location: Newcastle-upon-Tyne	Thanks. In pointing out that I've accounted for loading in shear but not in tension you've revealed me as a lowly electrical engineer rather than a "proper" mechanical engineer :-) __________________ My car: 2002 V40 1.6 Formerly: 1989 240 GL B200E, estate

Aug 7th, 2015, 09:53	#21
crogthomas Master Member Last Online: Apr 23rd, 2024 08:24 Join Date: Jan 2008 Location: Bracknell, Berkshire, UK	Nicely done. What do you do for a day job? You've shown that the bolt won't shear if it were loose. Now you need to confirm that a 8.8 can provide enough clamping load to prevent the caliper moving when done up correctly. And what is the recomended tightening torque for these bolts anyway?

Aug 8th, 2015, 09:29	#23
Honest989 New Member Last Online: Mar 3rd, 2024 10:40 Join Date: Feb 2015 Location: Camberley	90-110nm torque for front calipers 52-64nm torque for the rear Thanks leftfootleashed -email coming now. I just had Irwin bolt extractors arrive!

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