brake calliper torque setting

Post any technical questions or queries here.
Post Reply
phil82
850 Super
Posts: 136
Joined: Fri Jun 25, 2010 9:13 pm
Location: Germany
Contact:

brake calliper torque setting

Post by phil82 »

Hi there,

I just did the rebuild of some 7.5" brake calipers. Well during this rebuild I also splitted the two halfes of the calipers and know I face the problem that I can't find the correct torque value needed to put them back together.

Any idea?

Thanks a lot!
Last edited by phil82 on Mon Jun 27, 2011 9:05 pm, edited 1 time in total.
phil82
850 Super
Posts: 136
Joined: Fri Jun 25, 2010 9:13 pm
Location: Germany
Contact:

Re: brake calliper torque setting

Post by phil82 »

I just had the right idea a little late - searched in the old forum and found it...
User avatar
Vegard
1275 Cooper S
Posts: 2042
Joined: Mon Jun 28, 2010 1:33 pm
Location: Norway
Contact:

Re: brake calliper torque setting

Post by Vegard »

So for reference, what was it?
guru_1071
1275 Cooper S
Posts: 2109
Joined: Thu Jun 24, 2010 7:47 pm

Re: brake calliper torque setting

Post by guru_1071 »

300-340 ib/in

37-38 nm
please note, these are my own, individual sales, nothing whatsoever to do with my employer, minispares
Giff
850 Super
Posts: 159
Joined: Thu Jun 24, 2010 3:05 pm

Re: brake calliper torque setting

Post by Giff »

I think lbs/in should be banned...
phil82
850 Super
Posts: 136
Joined: Fri Jun 25, 2010 9:13 pm
Location: Germany
Contact:

Re: brake calliper torque setting

Post by phil82 »

45 lb/ft according to calver - well now we have two values...
Last edited by phil82 on Tue Jun 28, 2011 6:24 pm, edited 1 time in total.
guru_1071
1275 Cooper S
Posts: 2109
Joined: Thu Jun 24, 2010 7:47 pm

Re: brake calliper torque setting

Post by guru_1071 »

phil82 wrote:45 lb/ft according to calver - well now we have to values...

thats too much

45 lb/ft = 540 lb/inch / 61 newton meters

my data comes from the current ap technical sheet that comes with the new bolt & seal kit...........


:ugeek:
please note, these are my own, individual sales, nothing whatsoever to do with my employer, minispares
phil82
850 Super
Posts: 136
Joined: Fri Jun 25, 2010 9:13 pm
Location: Germany
Contact:

Re: brake calliper torque setting

Post by phil82 »

ok, that sounds like a good source!

I have heard of 39Nm for the 4piston aluminium calipers and thus trusted those 61Nm for the standard items. But if that's the official value from AP then I will take that. Luckily I haven't torqued them down yet.

Someone else (not from this forum) gave me the advice: as strong as possible - never had any problems with that... :D
User avatar
Vegard
1275 Cooper S
Posts: 2042
Joined: Mon Jun 28, 2010 1:33 pm
Location: Norway
Contact:

Re: brake calliper torque setting

Post by Vegard »

By the way. Do you guys use hardened washers when mounting caliper halves? To me it seems like a good ida as the caluiper material is hardly hard :lol:

The same issue goes through my head when fitting the brake shields or the brake hose protector. These are soft as jello, so would definitely screw up the torque settings after a short while.
Post Reply