Honda Accord/Civic/Prelude 1973-1983 Repair Guide

Brake Disc (Rotor)

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REMOVAL & INSTALLATION



1973-79 Civic and 1979-81 Accord Models

The following procedure for the brake disc removal necessitates the use of a hydraulic press. You will have to go to a machine or auto shop equipped with a press; DO NOT attempt this procedure without a press.

  1. Raise and support the front of the vehicle on jackstands. Remove the front wheels.
  2.  
  3. Remove the center spindle nuts.
  4.  
  5. Remove the caliper assembly; DO NOT let the caliper assembly hang by the brake hose.
  6.  
  7. Use a slide hammer with a hub puller attachment or a conventional hub puller, to extract the hub with the disc attached.
  8.  
  9. Remove the four bolts and separate the hub from the disc.
  10.  
  11. Remove the steering knuckle from the vehicle.
  12.  
  13. Remove the wheel bearings from the knuckle.
  14.  

If, for any reason, the hub is removed, the front wheel bearings must be replaced.

  1. Install the bearings and hub using a press. To install the disc, you have to use a hydraulic press for both the bearings and the hub. After installing the bearings (see below), install the front hub using the Special Base tool No. 07965-6340300 and Drift tools No. 07965-6340100 and 07965-6340200. Position the hub with the steering knuckle under the base and press it through the base.
  2.  
  3. Install the remaining components reversing the steps of removal.
  4.  

1980-83 Civic, 1982-83 Accord and 1979-83 Prelude Models

See Figure 1

  1. Raise and support the front of the vehicle on jackstands. Remove the front wheels.
  2.  
  3. Remove the caliper assembly; DO NOT let the caliper assembly hang by the brake hose.
  4.  
  5. Remove the retaining screw from the brake rotor and remove the rotor from the hub.
  6.  
  7. To install the disc, reverse the removal procedure.
  8.  



Click image to see an enlarged view

Fig. Fig. 1: Removing the brake disc

INSPECTION



  1. The brake disc develops circular scores after long or even short usage when there is frequent braking. Excessive scoring not only causes a squealing brake, but also shortens the service life of the brake pads. However, light scoring of the disc surface, will result from normal use and is not detrimental to brake operation.
  2.  

Differences in the left and right disc surfaces can result in uneven braking.

  1. Disc runout is the movement of the disc from side-to-side. Position a dial indicator in the middle of the pad wear area and turn the disc, while checking the indicator. If disc runout exceeds 0.15mm, replace the disc.
  2.  
  3. Disc parallelism is the measurement of variations in disc thickness at several locations on the disc circumference. To measure parallelism, place a mark on the disc and measure the disc thickness with a micrometer. Repeat this measurement at eight (8) equal increments on the circumference of the disc. If the measurements vary, replace the disc. Refer to a local automotive machine shop if necessary.
  4.  

 
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