GM Camaro/Firebird 1993-1998 Repair Guide

Brake Disc (Rotor)

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REMOVAL & INSTALLATION




CAUTION
Older brake pads or shoes may contain asbestos, which has been determined to be a cancer causing agent. Never clean the brake surfaces with compressed air! Avoid inhaling any dust from any brake surface! When cleaning brake surfaces, use a commercially available brake cleaning fluid.

  1. Raise and safely support the vehicle.
  2.  
  3. Remove the wheel and tire assembly.
  4.  
  5. Remove the caliper assembly and suspend from the body using a piece of wire. Do NOT allow the caliper to hang from the brake hose.
  6.  

See Figures 1 and 2



Click image to see an enlarged view

Fig. Fig. 1: Remove the caliper and hang it from the suspension with a piece of wire (see arrow)

  1. Pull the brake rotor from the hub and bearing assembly. Clean the rotor and hub bearing flange mating surfaces.
  2.  



Click image to see an enlarged view

Fig. Fig. 2: Pull the rotor (1) off the hub and bearing assembly (2)

To install:
  1. Position the rotor on the hub/bearing assembly studs.
  2.  
  3. Install the brake caliper.
  4.  
  5. Install the tire and wheel assembly, then carefully lower the vehicle.
  6.  

INSPECTION



See Figure 3

  1. Check the rotor surface for wear, scoring, grooves or rust pitting. Rotor damage can be corrected by refacing, consult your local garage or machine shop. If the damage exceeds the minimum thickness, which is stamped on the rotor, replace the rotor.
  2.  
  3. Check the rotor parallelism at four or more points around the circumference, it must not vary more than 0.0005 in. (0.013mm). Make all measurements at the same distance in from the edge of the rotor. Refinish the rotor if it fails to meet specification.
  4.  



Click image to see an enlarged view

Fig. Fig. 3: Check rotor runout using a dial indicator

  1. Measure the disc runout with a dial indicator. If runout exceeds 0.004 in. (0.10mm), and the wheel bearings are okay (runout is measured with the disc on the car), the rotor must be refaced or replaced.
  2.  

 
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