Caliper Disassembly

Fig. 2 Delco-Moraine single piston disc brake with single mounting bolt:

Fig. 4 Bracket assembly installed on caliper:

Fig. 5 Removing and installing cushions:

Fig. 6 Removing piston boot:

1. Using clean brake fluid clean exterior of caliper.
2. Drain brake fluid from caliper.
3. Remove caliper mounting bracket bolt and slide bracket from caliper, Fig. 4, then remove sleeve and bushing from bolt and bushing from caliper mounting hole, Fig. 2.
4. Remove clips if still in place, then remove cushions, Fig. 5.
5. Pad interior of caliper with clean shop towels, then direct compressed air through caliper inlet hole to remove piston. Use only enough air pressure to ease piston out of bore. Do not place fingers in front of piston for any reason when applying compressed air. This could result in serious personal injury.
6. Using a screwdriver carefully pry boot from caliper, Fig. 6.
7. Remove piston seal from caliper bore using a piece of wood or plastic. Do not use metal tool to remove piston seal as it may damage caliper bore.
8. Remove bleeder valve boot.