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Home >> Chevrolet >> 2001 >> Cavalier LS, 2.2 4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 247 (Drum Brake System) >> Repair Instructions >> Drum Brake Adjustment >> Adjustment Procedure

Adjustment Procedure

WARNING: This page is about a different car, the 2004 Pontiac Sunfire and 2004 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Refer to Brake Dust Caution in Cautions and Notices.
  1. Release the tension from the park brake cable system. Refer to Disabling the Park Brake Cable Automatic Adjuster in Park Brake.
  2. Raise and support the vehicle. Refer toLifting and Jacking the Vehicle in General Information.
  3. Remove the rear tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  4. Remove the brake drums. Refer to Brake Drum Replacement .
  5. Position the J 21177-A  to widest point of the brake drum inside diameter.
    Fig 1: View Of Drum-to-Brake Shoe Clearance Gage
    GM891757Courtesy of GENERAL MOTORS CORP.
  6. Firmly hand tighten the set screw on the J 21177-A  .
  7. Remove the J 21177-A  from the brake drum and position it over the corresponding brake shoe assembly at its widest point.
    Fig 2: Measuring Brake Shoe Assembly
    GM891758Courtesy of GENERAL MOTORS CORP.
  8. While holding the J 21177-A  in position, insert a 0.635 mm (0.025 in) feeler gage between one side of the J 21177-A  , and the corresponding brake shoe.
  9. Rotate the brake shoe adjuster screw until the brake shoes contact the J 21177-A  , and the feeler gage.

    Specification:  Brake shoe-to-drum clearance: 0.635 mm (0.025 in).

  10. Repeat the above steps for the opposite brake drum and brake shoe assembly.
  11. Install the brake drums. Refer to Brake Drum Replacement .
  12. Restore the tension to the park brake cable system. Refer to Enabling the Park Brake Cable Automatic Adjuster in Park Brake.
  13. Adjust the park brake. Refer to Park Brake Adjustment in Park Brake.
  14. Install the rear tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  15. Lower the vehicle.