Stuck brake caliper piston…

So, all the parts starting to come in for the disc conversion. I got word today that the left caliper I ordered wont be shipping. Didn't exist from seller. Anyway….

Both the old OEM calipers have pistons I can't fully remove. Pistons come out maybe about a 1/2 inch. Can push pistons back in, use compressed air...and piston comes out about 1/2"

Thinking about rigging up a grease gun and brake fitting, and try that. Or maybe hook the caliper up to my current brake system, and use that to try...

Stuck brake caliper piston...
Author: GBsPanhead