Rebuild
Rear Caliper:
DISASSEMBLY
1. Remove caliper assembly. Removal
2. Mount caliper in a vise. Use vise jaw protectors.
3. Using Rear Caliper Piston Adjuster T87P-2588-A, turn piston counterclockwise and remove piston from caliper piston bore.
4. Remove and discard piston dust boot seal and piston seal from caliper bore.
Screw And Cross block:
5. Release tension from parking brake lever pin retainer clip and spring cover using screw and cross block (part of T87P-2588-B), a 6 mm washer head nut and a 14 mm standard (1/2 inch) drive socket.
WARNING: The parking brake lever pin retainer clip and spring cover are under spring load. Care should be taken when removing the parking brake lever pin retainer clip to prevent injury.
6. With suitable snap-ring pliers, remove parking brake lever pin retainer clip retaining push rod assembly from rear disc brake caliper.
7. Remove spring cover, RH anti-rattle spring cover, washer, key plate and pull out push rod and strut pin from caliper bore.
8. Remove and discard rear brake caliper piston seal from push rod.
9. Remove parking brake return spring. Unscrew spring retainer bolt and pull parking brake lever out of caliper housing.
CLEANING AND INSPECTION
1. Clean all metal parts with isopropyl alcohol or brake parts cleaner. Use clean, dry compressed air to clean out and dry grooves and passages. Ensure caliper bore and component parts are completely free of any foreign material.
2. Inspect caliper bores for damage or excessive wear. If piston is pitted, scored or plating is worn off, replace piston assembly.
ASSEMBLY
1. Lightly grease parking brake lever bore and lever shaft seal with silicone dielectric grease. Press parking brake lever shaft seal into caliper bore.
Parking Brake Lever Assembly:
2. Grease parking brake shaft recess and slightly grease parking brake lever shaft. Insert shaft into bore in caliper housing.
3. Screw spring retainer bolt into caliper housing. Tighten to 6-9 Nm (4.5-7 ft lb). Attach parking brake lever return spring to stop bolt and insert free end into parking brake lever slot.
4. Install a new O-ring seal in groove of push rod. Grease recess at push rod end with silicone dielectric grease.
Push Rod Assembly:
5. Position strut pin into caliper housing and in recess of parking brake lever shaft. Insert push rod into push rod bore of caliper housing. Ensure pin is positioned correctly between shaft recess and recess at end of push rod. Place key plate over push rod so that locating nib fits into drilled locating hole in caliper housing. Install flat washer, push rod, spring and spring cover in order.
Inner Spacer:
6. Insert inner spacer into piston bore.
7. Place snap ring inside of inner spacer.
8. Position spring compressor and screw and crossblock on push rod, and lightly screw tool clockwise to compress spring. Install snap ring.
CAUTION: Snap ring should click into place. Do not overcompress spring.
9. Install new piston seal in groove in caliper housing after lubricating seal with DOT 3 brake fluid.
10. Coat piston and piston dust boot with DOT 3 brake fluid. Install dust boot into piston bore of caliper. Spread dust boot over piston and seat dust boot in piston groove. Rotate piston clockwise using Rear Caliper Piston Adjuster T87P-2588-A or equivalent until piston is fully seated.
NOTICE: Ensure one slot in piston face is positioned so it will engage with nib on brake pad.
11. Install caliper assembly.