At 05:13 PM 1/12/04 -0500, Don Fodor wrote:
>".... drum brakes all around. .... cannot get the pistons out. They are rusted in place solid. Any ideas on getting them out?

Here is a simple to make tool for removing a hydraulic piston from a slave cylinder. If air pressure doesn't pop the piston out, then start with a short bolt with the proper thread to match the thread in the port on the cylinder, and long enough to bottom out in the threaded hole. Drill a small hole through the length of the bolt on (or near) the central axis. Drill and tap a thread in the head end to accept a small grease fitting.

Fill the cylinder with oil to expel all air first, then install this fitting and plug any remaining port on the cylinder with another screw. Pump up pressure with a grease gun. If that doesn't push the piston out on the first try, save your special fitting and drop the cylinder into the nearest trash can (unless it's some rare or exotic part that cannot be replaced).

See Removing a siezed piston from a hydraulic cylinder for more information on finishing the job.