Express 1/2 Ton Van V8-5.7L VIN R (1999)
Wheel Cylinder: Service and Repair
Wheel Cylinder Overhaul
REMOVAL PROCEDURE
1. Remove the rear brake cylinder pushrod from the cylinder bore.
2. Remove the rear brake bleeder valve (5) from the rear brake cylinder.
3. Remove the rear brake piston cylinder boots (3) from the rear brake cylinder.
4. Remove the rear brake cylinder pistons (2) from the rear brake cylinder.
5. Remove the rear brake cylinder seals (1) from the rear brake cylinder.
6. Remove the rear brake cylinder spring (4) from the rear brake cylinder.
7. Inspect the rear brake cylinder bore for scoring and corrosion.
8. Inspect the rear brake cylinder spring for signs of discoloration due to heat. Replace if necessary.
9. Clean the inside of the rear brake cylinder bore with a crocus cloth. If the bore is still scored, replace the brake cylinder.
10. Clean the rear brake cylinder with clean brake fluid.
INSTALLATION PROCEDURE
1. Lubricate the rear brake cylinder bore and seals with clean brake fluid.
2. Install the rear brake cylinder spring (4) to the rear brake cylinder.
3. Install the rear brake cylinder seals (1) to the rear brake cylinder.
4. Install the rear brake cylinder pistons (2) to the rear brake cylinder.
5. Install the rear brake piston cylinder boots (3) to the rear brake cylinder.
NOTICE: Refer to Fastener Notice in Service Precautions.
6. Install the rear brake bleeder valve (5) to the rear brake cylinder.
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Tighten the rear brake bleeder valve to 13 Nm (100 inch lbs.).
7. Install the rear brake cylinder pushrod to the rear brake cylinder.
