My rear PM caliper has no bleeder valve. There is an allen screw in the hole for the bleeder valve. I guess I can take the allen out, and put a bleeder in it? I went to bleed the brakes and was staring at the caliper for about 30 minutes scratching my head. Anyone ever seen something like this before? I'll get a pic later, forgot to take one when I was outside.

 

nuf said

 

Replace the allen with a bleeder from an auto parts store. I assume you got the caliper used, the previous owner probably needed it.