[Kevin88RRC]

I picked up 2 used rear calipers to overhaul. Never done this so I have some questions. 1) is there a way to remove the pistons without an air compressor, 2) special tool 18G672-piston clamp necessary to fit seal retainer, and 3) what is suitable disc brake lube?

thanks
:drink1:

 

[AdrianS]

If your going to replace the pistons then you should be able to pull them out with pliers and use a small flat screw driver to pry the seals out. I use Castro LMA brake fluid (Low Moisture Absorption). Your best bet is to get the RR manual though. Good luck.

 

[Kevin88RRC]

I got the pistons out using a bike pump. 2 out 4 pistons are still usable :clap:
Is the special tool 18G672-piston clamp necessary to fit seal retainer or can it be pressed in some other way?