Pff, my dad's got a few sets of Kelsey-Hayes Mustang calipers split apart downstairs all over the place, and he tracks his car! Plus, I thought that was more because the o-ring for stock and tii calipers was NLA.

I am no expert but I have split calipers on many occasions without ill effects. I have done it on Porsches and E9's usually with new hardware including Orings. I am certain I recently saw specs posted on the net for many different (ATE?) calipers with much higher torque settings 75+ft.lbs? The torque may even be higher. One thing to consider is that some of the manufacturers used to recommend using new "one-time-only" fasteners.

If I can find the cite, I will post, but I am guessing you could find it almost as easily. It was on a brake cite.

hth

75+ft-lbs sounds like an incredible amount for what are more or less M8 bolts with fine thread; BMW seems to suggest about 25 ft-lbs for M8 bolts elsewhere.

I know I saw very high torque figures for some kind of brakes. I have not had an opportunity to search the net, and I would bet that Volvo posts the very specs you are after. I went to my E9/E3 manual and discovered the following torque specifications in ft/lbs:

Front caliper halves: 33 to 40
Rear caliper halves: 16.

In essence, these figures are just above hand tightening status.

Hope this helps.

Not exactly on point, but more for you to ponder:

See MarkD's posts: http://www.mye28.com/viewtopic.php?t=43421

and

http://www.pelicanparts.com/techarticles/914_caliper_rebuild/914_caliper_rebuild.htm

http://www.fireblades.org/forums/honda-fireblade/62663-caliper-torx-torque-setting.html

dtto hth