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Brakes Torque Specs

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Old 08-02-10, 08:38 PM
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Brakes Torque Specs

Hi everyone.
I am doing my brakes on the 4 corners. I decided to paint my calipers, so I took them off.
I am in the process of reinstalling the rears and I need to clarify something.

I have the Factory Service Manual and -based on what I understand- these should be the torque specs for the respective bolts:

2 Bolts that hold the caliper assembly onto the bracket: 34-39
Banjo brake fitting bolt: 15-21.

These values are beside the bolts on the factory service manual, between {...}

I am confused with exactly which value of the two, assuming I got the right numbers.

Any input would be greatly appreciated.
Giovanni
Old 08-04-10, 09:47 PM
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My manual shows:
The two long bolts with threads only near the head which hold the calipers to the brackets: 47-62 ft lbs.

The two normal bolts that hold the brackets to the hubs: 34-39 ft lbs.

Each torque value set of three is in this order from left to right:
N-m = newton meter
kgf-m = kilogram force meter
ft.lb = foot pound
These are shown earlier in the manual.

Each is shown as a range from minimum to maximum. I use the middle point otherwise know as the average. Now if a fastener has been partial stripped or damaged, I would use the lowest value.
Old 08-06-10, 10:45 PM
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Originally Posted by cewrx7r1
Now if a fastener has been partial stripped or damaged, I would use the lowest value.
Re-use a damaged fastener on the brakes?

Somehow that just sounds like a bad idea.
Old 08-18-10, 09:28 AM
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Originally Posted by jkstill
Re-use a damaged fastener on the brakes?

Somehow that just sounds like a bad idea.
You have to understand how the stress on the fastener is applied, and if it still can be torqued to a recommended value. It is science not superstition.




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