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Home >> Chevrolet >> 2001 >> Cavalier LS, 2.2 4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 112 (Disc Brakes & Drum Brakes) >> Adjustments & Inspections >> Drum Brake System >> Drum Brake Adjustment

Drum Brake Adjustment

WARNING: This page is about a different car, the 2003 Pontiac Sunfire and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
  1. Release the tension from the park brake cable system. See DISABLING PARK BRAKE CABLE AUTOMATIC ADJUSTER  .
  2. Raise and support the vehicle. Remove the tire and wheel assembly.
  3. Remove the brake drum. See BRAKE DRUM  under REMOVAL & INSTALLATION.
  4. Measure the inside diameter of the drum using the Brake Drum/Shoe Clearance Gage (J-21177-A) as shown in part A of the illustration. See Fig 1 .
  5. Firmly hand tighten the set screw on the Brake Drum/Shoe Clearance Gage.
  6. Remove the Brake Drum/Shoe Clearance Gage from the brake drum and position it over the corresponding brake shoe assembly at its widest point.
  7. While holding the Brake Drum/Shoe Clearance Gage in position, insert a 0.025 in. (0.635 mm) feeler gage between one side of the Brake Drum/Shoe Clearance Gage, and the corresponding brake shoe.
  8. Rotate the brake shoe adjuster screw until the brake shoes contact the Brake Drum/Shoe Clearance Gage, and the feeler gage to a specification of 0.025 in. (0.635 mm).
  9. Repeat the above steps for the opposite brake drum and brake shoe assembly.
  10. Install the brake drums. See BRAKE DRUM  under REMOVAL & INSTALLATION.
  11. Restore the tension to the park brake cable system. See ENABLING PARK BRAKE CABLE AUTOMATIC ADJUSTER  .
  12. Adjust the park brake. See PARKING BRAKE ADJUSTMENT  .
  13. Install the rear tire and wheel assemblies. Lower the vehicle.
Fig 1: Drum Brake Adjustment
G00076355Courtesy of GENERAL MOTORS CORP.
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