'65 Mustang calipers

[thecrowx]

Ok, I just finished mounting '65 Mustang 4 piston calipers onto my '63 econoline spindles. Now that I have bled the brakes, and stepped on the brake pedal a few times, the rotors are locked up and won't turn by hand. These were used chrome calipers that I installed. Should the calipers back off enough on their own, to enable the rotor to spin freeley? Do I need new calipers? I am expecting the worse.

Thanx thecrowx

[Matt167]

calipers should not do that.. those are a fairly common ( for that era ) Kelsey Hayes caliper.. I'd pull them apart and rebuild them

[John Palmer]

Disk brake equipped 1966 Mustangs had a different master cly. than did a drum brake equipped Econoline van. Did you change the master cly? How about the push rod adjustment, is the master cly linkage free to allow return of the master cly? How about the rubber wheel hoses, I seen them completely shrunk closed inside resulting in fluid flow to operate the brake when compressed, but not release the brake when you let off the brake pedal. Is the master cly "too full"?

Just some things to consider.

[R Pope]

Most older disc brakes drag. A common trick was to set the wheel bearings with a little slack, so the disc could wobble just a bit and push the pads apart. Always seemed a tad Mickey Mouse to me, but it worked.