Section 06-03: Brakes, Front Disc
1993 Mustang Workshop Manual
OVERHAUL

Caliper

 

Disassembly

  1. Remove the caliper assembly from the vehicle as outlined. Place a cloth over the piston before applying air pressure to prevent damage to the piston.
  1. Apply air pressure to the fluid port in the caliper with Air Nozzle Assembly TOOL-7000-DE or equivalent to remove the piston.




    Item Part Number Description
    1 Fiber Block
    2 Cloth
    3 Piston
    4 TOOL-7000-DE Air Nozzle Assembly
    5 Caliper
  1. Remove the dust boot from the caliper assembly and discard it.
  1. Remove the rubber piston seal from the cylinder and discard it.
 

Cleaning and Inspection

  1. Clean all metal parts with isopropyl alcohol. Then, clean out and dry the grooves and passageways with compressed air. Ensure that caliper bore and component parts are thoroughly clean.
  1. Check the cylinder bore and piston for damage or excessive wear. Replace the piston if it is pitted, scored, corroded, or the plating is worn off.
 

Assembly

  1. Apply a film of clean brake fluid to the new caliper piston seal, and install it in the cylinder bore. Ensure seal does not become twisted but is firmly seated in the groove.
  1. Install a new dust boot by setting the flange squarely in the outer groove of the caliper bore.
  1. Coat piston with brake fluid, and install piston in the cylinder bore. Use a wood block or other flat stock when installing piston back into piston bore. Ensure piston is not cocked. Spread the dust boot over the piston as it is installed. Seat dust boot in piston groove.
  1. Install the caliper over the rotor as outlined.