Rear disc retaining bolts

The other bad news of course is that these bolts were never intended to go that far in, and so I have cut a new bit of thread along their length. They all went in fine though, except the last one, which just didn't feel right, so I discarded it and used the best of the old ones. Connecting the flexible link pipe was a nightmare - there's not much room up there. Connecting and tightening up the metal link pipe was even worse, but we got there in the end. Here's a picture of the temporary bracket fashioned from one of the disk lock washers. I don't think I'll be leaving this on there very long . . .



Brakes successfully bled and now working fine.
 

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I am not too sure about the rear disc rotor bolts, but the front rotors in my late 1976 P6B feature 9/16" AF bolt heads and my Repair Manual states a torque value of 44 lb.ft for final tightening. This seems right for a 3/8" diameter high tensile bolt shank.

However, my manual (AKM 3621) does state 85 lb.ft torque for the rear disc rotor to drive flange, which ties in, somewhat, with your mention of 5/8" bolt heads accross the flats. There is no mention of a lower torque value for earlier cars.

Hope this helps the cause a little,

Mike Allfrey - Melbourne, OZ.
 
yeah...that 85lbs torque!!!
I have a torque wrench that i endeavoured to use, but just couldnt bring myself to put that much twist on them...I mean i did these things up f@#*@n TIGHT...and still didnt hit 85lbs.
 
I normally use a torque wrench to avoid overtightening fittings - 85 ft/lbs is achievable with an average length ratchet/ring spanner
 
I did mine up to 85 lb/ft Husband locking and unlocking the opposite wheel with a block of wood under the tire . Did have sore shoulders next morning though :shock:
 
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