Well I did some homework here recently as I progressed through replacing most of the brake components on my '77 242. Did all calipers from FCPGroton, (Reman of course as that's all they have), all six flexible lines, taking extensive care to keep everything clean and was easy on the old fittings.

When calipers arrived, the first thing I did was look to see if there were two pin punches or dimples that were side-by-side to insure to me the halves were not mis-matched. I could find NO markes whatsoever. So I took a big gulp, and crossed my fingers....continuing with the job.

I planned to do gravity bleeding as I'd done easily a few years ago. I didn't want to exercise the master cylinder piston to it's full throw in case the far end of it's bore was dirty and I'd merely cause another problem, so I passed on the pump-the-pedal-with-helper system I'd used when I was a kid.

Finished up. All looked good. Everything bled except two bleeders on each of the front calipers. Front, TOP bleeders bled with no problem. So I dug out my, "Easy Bleed," I got years ago, hooked it up to 15 pounds of air from a tire and tried again. This time, the right side did bleed from all three bleeders. Still nothing on the pair of center bleeders for the left side. Tomorrow I'll air up the tire again and try again.

So my questions here are:
1. Do ALL 240 calipers have the dimple/pin punch marks??? (If so I've somehow missed them, or the calipers were bead blasted too much in the reman, distroying the marks)

2. When the reman folks screw up and mis-match caliper halves, are there ALWAYS certain of the bleeders that do not bleed? i.e., is it always the center two as I am noticing, only one, or can it be any combination??

I went through this the last time I did calipers several years ago....when I didn't know about the mis-match history/misery. Those were NAPA. Boy did that push me over the edge !!

At this point, I'd like to pin this down if tomorrow's pressure bleed doesn't work. Oh, BTW, I could get a helper to do the pedal method, but I'm worried if the lines have mis-matched pressures I'd kick that junction block/safety switch to one side and never get it back.

Thanks,
Dennis