If your caliper piston was retracted all the way when you installed it. Then there would have been over 1/4" of free play, that the
piston has to travel the "first time" you applied the brakes. What that does, is cause the ratchet in the piston to not work correctly
and that will cause "low pedal" issues.
What you need to to is turn the piston back in all the way and then turn it out manually until you have a little bit of free-play when
the caliper is sitting over the pads.2mm or so.
Then, pump the pedal and and re-bleed.
Wednesday, October 17th, 2012 AT 5:01 PM