Disassembly and Assembly
DISASSEMBLY
1. Remove boot (1) and piston assembly (2).
2. Remove piston cup (3) from piston assembly (2).
3. Remove return spring (4) and bleeder (5) from wheel cylinder (6).
INSPECTION AND REPAIR
1. Make necessary parts replacement if wear, damage, corrosion or any other abnormal condition are fond through inspection.
Check the following parts:
- Wheel cylinder body
- Cylinder bore
- Piston
- Return spring
- Bleeder
NOTE: Replace the piston cups and boots each time the wheel cylinder is overhauled. Discard these used rubber parts and replace with new ones.
REASSEMBLY
1. Lubricate the cylinder bore with clean rubber grease.
2. Install bleeder (5) to wheel cylinder (6).
3. Install new piston cups (3) on each piston so that the flared end of the cups are turned to the inboard side of the pistons.
Attach the return spring (4) and the boot (1) to the piston.
4. Apply DELCO silicone lube No. 5459912 (or equivalent) to the piston and the inner face of the boots.
5. Install piston assembly (2) to wheel cylinder (6).