Rear Brake Pad Inspection And Replacement
Rear Brake Pad Inspection and Replacement
Special Tools Required
- Brake Caliper Piston Compressor 07AAE-SEPA101
CAUTION
Frequent inhalation of brake pad dust, regardless of material composition, could be hazardous to your health.
- Avoid breathing dust particles.
- Never use an air hose or brush to clean brake assemblies. Use an OSHA-approved vacuum cleaner.
Inspection
1. Raise and support the vehicle Service and Repair.
2. Remove the rear wheels.
3. Check the thickness (A) of the inner pad (B) and the outer pad (C). Do not include the thickness of the backing plate.
4. If any part of the brake pad thickness is less than the service limit, replace the brake pads as a set.
5. Clean the mating surfaces between the brake disc/drum and the inside of the wheel, then install the rear wheels.
Replacement
1. Remove some brake fluid from the master cylinder.
2. Raise and support the vehicle Service and Repair.
3. Remove the rear wheels.
4. Remove the flange bolts (A) while holding the caliper pins (B) with a wrench. Be careful not to damage the pin boots, and remove the caliper body (C). Check the hose and pin boots for damage and deterioration.
NOTE: Do not twist the brake hose and the parking brake cable to prevent damage.
5. Remove the pad shim (A) and the brake pads (B).
6. Remove the pad retainers (A).
7. Clean the caliper bracket (B) thoroughly; remove any rust, and check for grooves and cracks. Verify that the caliper pins (C) move in and out smoothly. Clean and lube if needed.
8. Inspect the brake disc/drum for runout, thickness, parallelism Rear Brake Disc Inspection, and check for damage and cracks.
9. Apply a thin coat of M-77 assembly paste (P/N 08798-9010) to the retainer mating surface of the caliper bracket (indicated by the arrows).
10. Install the pad retainers. Wipe off the excess assembly paste from the retainers. Keep any assembly paste away from the disc/drum and pads.
11. Install the brake caliper piston compressor tool (A) on the caliper body (B).
12. Press in the piston with the brake caliper piston compressor tool so the caliper body will fit over the brake pads. Make sure the piston boot is in position to prevent damaging it when installing the caliper body.
NOTE: Be careful when pressing in the piston; brake fluid might overflow from the master cylinder's reservoir. If brake fluid gets on any painted surface, wash it off immediately with water.
13. Remove the brake caliper piston compressor tool.
14. Apply a thin coat of M-77 assembly paste (P/N 08798-9010) to the pad side of the shim (A), the back of the brake pads (B) and the other areas indicated by the arrows. Wipe off the excess assembly paste from the pad shim and the brake pads friction material. Keep grease and assembly paste away from the brake disc/drum and the brake pads. Contaminated brake disc/drum or brake pads reduce stopping ability.
15. Install the brake pads and the pad shim correctly. Install the brake pad with the wear indicator (C) on the bottom inside position. If you are reusing the brake pads, always reinstall the brake pads in their original positions to prevent a temporary loss of braking efficiency.
16. Apply a thin coat off M-77 assembly paste (P/N 08798-9010) to the piston (A).
17. Install the caliper body. Install the flange bolts (B), and tighten them to the specified torque while holding the caliper pins (C) with a wrench being careful not to damage the pin boots.
18. Clean the mating surfaces between the brake disc/drum and the inside of the wheel, then install the rear wheels.
19. Press the brake pedal several times to make sure the brakes work.
NOTE: Engagement may require a greater pedal stroke immediately after the brake pads have been replaced as a set. Several applications of the brake pedal will restore the normal pedal stroke.
20. Add brake fluid as needed.
21. After installation, check for leaks at hose and line joints or connections, and retighten if necessary.
Test-drive the vehicle, then check for leaks Testing and Inspection.