GM Firebird 1982-1992 Repair Guide

Parking Brake Free-Travel

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ADJUSTMENT



1989-92 Models
Rear Disc Brakes

Disc brake pads must be new or parallel to within 0.006 in. (0.15mm). Parking brake adjustment is not valid with heavily tapered pads and may cause caliper/parking brake binding. Replace tapered brake pads. Parking brake free-travel should only be made if the caliper has been taken apart. This adjustment will not correct a condition where the caliper levers will not return to their stops.

  1. Have an assistant apply a light brake pedal load, enough to stop the rotor from turning by hand. This takes up all clearances and ensures that components are correctly aligned.
  2.  
  3. Apply light pressure to the caliper lever.
  4.  
  5. Measure the free-travel between the caliper lever and the caliper housing. The free-travel must be 0.0024-0.028 in. (0.6-0.7mm).
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  7. If the free-travel is incorrect, do the following:
    1. Remove the adjuster screw.
    2.  
    3. Clean the thread adhesive residue from the threads.
    4.  
    5. Coat the threads with adhesive.
    6.  
    7. Screw in the adjuster screw far enough to obtain 0.024-0.028 in. (0.6-0.7mm) free-travel between the caliper lever and the caliper housing.
    8.  

  8.  
  9. Have an assistant release the brake pedal, then apply the brake pedal firmly 3 times. Recheck the free-travel and adjust as necessary.
  10.  

 
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