First mistake everybody makes in trying to get the piston in. OPEN THE BLEEDER SCREW FIRST!!
You will need to get a new rubber seal and dust cover. Just clean the remove the old seal and clean the bore with brake fluid. Rub a little vasoline on the new seal and install it. Clean the piston with brake fluid and carfully push it back in. Slowly and evenly. It WILL go!
Finish by installing the new dust seal. A large "C" clamp is the tool of choice to compress the piston all the way home, but open the bleeder first!!! Re-install the caliper and bleed.
Not to hard a job, just messy.
Good lucky. Do you have a manual? The proceedure is outlined there.
Last edited by luckycat; 01-10-2006 at 06:01 PM.