Assembly Procedure
- Clean all parts with denatured alcohol or clean brake fluid. Dry the parts with compressed air.
- Inspect the master cylinder bore for scoring or corrosion. If scoring or corrosion is evident, replace the master cylinder body.
- Lubricate the master cylinder bore with clean brake fluid. The non-ABS master cylinder is shown.
- Carefully insert the secondary piston assembly bore until the secondary piston contacts the base of the cylinder body. Use a wood or a plastic drift, if necessary.
- Insert the primary piston.
- Press the pistons into the cylinder bore using a wooden or a plastic drift.
- Insert the new retaining ring into the groove in the cylinder bore. Remove the welding rod. The non-ABS cylinder body is shown.
- Move the pistons backward and forward after installation to check for free movement.
- Lubricate the seal ring and insert the seal into the cylinder bore. The open side must face outward until the seal rests on the piston.
- Install the brake fluid reservoir to the master cylinder. Refer to Master Cylinder Reservoir Replacement .
- Install the master cylinder assembly. Refer to Master Cylinder Replacement .
- Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
- Bleed the braking system. Refer to Hydraulic Brake System Bleeding (ABS) or Hydraulic Brake System Bleeding (Manual) .
- Lower the vehicle.
IMPORTANT:
Do not use abrasives in the master cylinder bore.
IMPORTANT:
Rubber parts and retaining rings must be discarded and replaced with new parts.
IMPORTANT:
Use care when installing the new retaining ring into the cylinder bore.