Brake Caliper: Disassembly
Clean exterior of caliper with denatured alcohol and place on clean work surface. Remove brake hose, discarding copper gasket. Drain brake fluid from caliper. Use clean shop towels to pad interior of caliper and use compressed air introduced at caliper inlet, to remove piston.
CAUTION:
Use just enough air pressure to ease piston out of bore.
Use screwdriver to pry boot out of caliper. Remove piston seal from its groove in caliper bore, using a piece of wood or plastic.
CAUTION:
Do not use a metal tool of any type for this operation.
Remove bleeder valve from caliper.