Would like to know if the bleeder screw taper area where the bleeder screws into can be repaired. The previous owner must have drilled a screw out in the past and went a little to deep. The screw was a litttle deeper than the right side when it was tight and I guess that is why. Now I am having trouble getting the bleeder screw to seal. Is there anyone that can repair this?
Thanks Steve

If the caliper is a single piston, '69 or newer, buy a new one. Relatively cheap, under $30.

If multiple piston, then a machine shop would have to fix it. Take along and give them the bleeder for the caliper for the matching taper. If the bored hole is pretty deep, could be a problem as a little finesse is needed to weld cast iron.

If the tapered seat is wide enough, you might try a copper washer from a hydraulics/pnuematic store and drop it in the hole and use the cu washer to seal.