Torque setting for front caliper half bolts please?

[JVY]

I have eventually got round to tackling what I think is the last job on JVY before I can put her in for an MOT (after failing last June!).
I had an advisory from the last MOT that the front brake imbalance was close to failing. So, after a bit of investigation, I found that the front NS caliper was binding slightly. TBH, ever since I got the car, on longer runs I could sometimes feel a very slight shudder that I suspected was coming from the front NS brakes.

I have ordered a seal kits so that I can refurb the caliper. Just to be safe, I will replace the flexible hose as well (have read too many posts on here about internally collapsing hoses). I had a lot of bother getting the outer piston removed, so I suspect this was the problem (i.e. only the inner piston was opertaing - this would explain the imbalance?). Anyway, I reckon the pistons were starting to seize due to the rubber boots on both having perished a bit. I found some corrosion on the piston surfaces, so reckon that air was coming through the perished boots and causing surface corrosion on the wall of the piston.

While awaiting the parts I have cleaned up and painted the calipers. However, one bit of info not in my Haynes Manual is the torque settings for the four HT bolts that hold the caliper halves together. Can anyone help please :?:
('75 2200TC Girling Brakes)

BTW, the caliper paint I got was from Halfords. It says on the can something like it will give my car a "sporty & dynamic appearance"

 

[quattro]

The Haynes manual does state, "Under no circumstances split the two halves of the caliper"

I don't know whether or not this is that bad TBH as Classeparts do split them and fit a spacer to enable them to fit over the vented disc system they use, and I am sure they told me to torque them up to 55lb/ft. Better check first though as my memory isn't as good as it was.

 

[JVY]

Thanks Richard. 55 lb ft (75Nm) sounds about right and I reckoned they should be a fairly high torque. They were hell of a tight when I took them off (& stupidly never measured the torque first). Though I read the same bit in the Haynes book, I decided to split them to have a look at the condition and to clean/paint them up properly. I was also a little suspicious as the bolts looked like they had been removed previously. Also, I replaced the little 'o' ring that seals the fluid channel and put Loctite on the 4 HT bolts.

 

[Hans]

I have split them to, be sure no little damaged on surface , i have tighten the bolts the same i loose them with an long steel pipe on my tool.
I think 75Nm is not tighten to much, i be sure when i loose them it was more.