Originally Posted by
Winfried
Do you mean I should apply mineral oil — the same I use for the braking system — onto the right-side piston to help it get unstuck while I hold the left-side piston with a
bake piston press?
Clean it first, then apply some mineral oil (yes same for braking system) around the piston before you push it in. You will need someone to assist you while you hold the piston in while the brakes are applied to push out the one that is stuck. Once you get the one stuck out apply mineral oil around that piston, push it in, then exercise it by holding the other piston in again while someone manipulates the brakes.