Wheel Cylinder Overhaul
DISASSEMBLE PROCEDURECAUTION: Keep fingers away from rear brake shoe springs to prevent fingers from being pinched between spring and shoe web or spring and backing plate.
NOTICE: Do not pry against the splash shield or backing plate in attempt to free the drum. This will bend the splash shield or backing plate. A bent backing plate may cause brake chatter and/or pulsation.
NOTICE: Do not over stretch the Adjuster spring. Damage can occur if the spring is over stretched.
1. Remove the wheel cylinder.
2. Remove the boots (4).
3. Remove the following components:
^ The pistons (3)
^ The seals (2)
4. Remove the spring (5).
5. Remove the bleeder valve (6).
6. Inspect the cylinder bore (1) and the pistons (3) for the following conditions:
^ Scoring
^ Nicks
^ Corrosion
^ Wear
7. Use a crocus cloth in order to polish out light corrosion.
8. Replace the wheel cylinder (1) if the cylinder bore does not clean up with a crocus cloth.
9. Clean all of the components in denatured alcohol.
10. Dry all of the components with nonlubricated compressed air.
11. Lubricate the new seals with clean brake fluid.
ASSEMBLE PROCEDURE
NOTICE: Refer to Fastener Notice in Service Precautions.
1. Install the bleeder valve (6).
^ Tighten the bleeder valve (6) to 7 Nm (62 inch lbs.).
2. Install the spring (5).
3. Install the following components:
^ The seal (2)
^ The pistons (3)
^ The boots (4)
4. Install the wheel cylinder.