Nissan Sentra/Pulsar/NX 1982-1996 Repair Guide

Brake Disc (Rotor)

Print


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

REMOVAL & INSTALLATION



1991-96 Sentra
  1. Raise the vehicle and support safely.
  2.  
  3. Remove the rear wheel.
  4.  
  5. Remove the brake caliper as outlined in this section.
  6.  

Do NOT allow the caliper to hang from the brake hose. Hang the caliper by a wire.

  1. Remove the brake caliper torque member.
  2.  
  3. Remove the rotor retaining screw and rotor.
  4.  

To install:
  1. Install the rotor and retaining screw.
  2.  
  3. Install the torque member, brake pads and caliper as outlined in this section. Torque the member bolts to 28-38 ft. lbs. (38-52 Nm).
  4.  
  5. Install the rear wheel and lower the vehicle.
  6.  
  7. Pump the brakes a few times before driving.
  8.  

INSPECTION



See Figures 1 and 2



Click image to see an enlarged view

Fig. Fig. 1: Using a micrometer, measure the rotor thickness and parallelism



Click image to see an enlarged view

Fig. Fig. 2: Attach a dial indicator as shown to measure rotor run-out

Visually inspect the surface of the rotors for scoring, hard spots (black discolorations), and/or wear. Scoring or other surface imperfections, can be corrected by machining the brake rotor surface, providing there is enough available material to machine. Hard spots are caused by excessive heating of the rotor surface and usually can not be removed by resurfacing the rotor. Perform the following inspection procedures to determine if the rotor is okay, and if not, whether to resurface or discard the brake rotor.

  1. Using a micrometer, check the thickness of the disc. Compare the reading to the Brake Specification chart in this section. If the rotor is below minimum thickness it must be discarded.
  2.  
  3. Using a dial indicator, check the run-out of the disc. Compare the reading to the Brake Specification chart in this section. If the measurement is greater than the maximum, resurface or replace the disc.
  4.  
  5. Check the parallelism of the disc, using a micrometer and measuring at four equally spaced points around the rotor. Compare the reading to the brake specification chart in this section. If the measurement is greater than the maximum, resurface or replace the disc.
  6.  

 
label.common.footer.alt.autozoneLogo