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Home >> Chevrolet >> 2005 >> Optra5 LS, Standard >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Disc Brakes >> Repair Instructions >> Brake Caliper Overhaul - Rear >> Assembly Procedure

Assembly Procedure

    Fig 1: View Of Bleeder Valve And Dust Cap
    GM1255732Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Do not use a hone or any other procedure to remove material from the caliper bore or the piston.
  1. Clean all parts in denatured alcohol or brake fluid. Dry the parts with unlubricated compressed air and blow out all passages in the housing and the bleeder valve.
  2. Inspect the piston and caliper for scoring, nicks, or corrosion. Replace any components which show these conditions.
  3. Install the bleeder valve and the dust cap.
    4. Fig 2: Identifying Piston Inner Seal
    GM1255728Courtesy of GENERAL MOTORS CORP.
  4. Lubricate a new piston inner seal with brake fluid.
  5. Install the piston inner seal into the groove in the caliper bore.
    6. Fig 3: View Of Piston And Dust Seal
    GM1255730Courtesy of GENERAL MOTORS CORP.
  6. Install the piston dust seal in its groove.
  7. Lubricate the piston with brake fluid.
  8. Push the piston inward until it is properly seated. Make sure that the dust seal is in the correct groove in the piston and the caliper.
  9. Reinstall the caliper. Refer to Brake Caliper Replacement - Rear .
  10. Bleed the brake system.
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