Toyota Celica/Supra 1971-1985 Repair Guide

Brake Caliper

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REMOVAL & INSTALLATION



See Figures 1, 2 and 3



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Fig. Fig. 1: Remove the lower mounting bolt



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Fig. Fig. 2: Slide the caliper off of the rotor



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Fig. Fig. 3: Separate the brake hose from the caliper

If you plan to overhaul the caliper, then you only need to pivot the caliper (brake cylinder) upward, as detailed previously in the Brake Pad removal and installation procedure. If the whole assembly must be removed (such as to remove the brake disc), unscrew the two mounting bolts on the back of the caliper mounting frame and pull the whole assembly off of the disc. Do not let the caliper hang by its hose.

OVERHAUL



1971-81 Models

See Figure 4



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Fig. Fig. 4: Use compressed air to force the piston out of its bore

  1. Remove the caliper cylinder from the car. (See the appropriate preceding Brake Pad removal procedure.)
  2.  
  3. Carefully remove the dust boot from around the cylinder bore.
  4.  
  5. Apply compressed air to the brake line union to force the piston out of its bore. Be careful, the piston may come out with great force!
  6.  
  7. Remove the seal from the cylinder. Check the piston and cylinder bore for wear and/or corrosion. Replace components as necessary.
  8.  

To assemble:
  1. Coat all components with clean brake fluid.
  2.  
  3. Install the seal and piston in the cylinder bore, after coating them with the rubber lubricant supplied in the rebuilding kit. Seat the piston in the bore with your fingers.
  4.  
  5. Fit the boot into the groove in the cylinder bore.
  6.  
  7. Install the caliper assembly. Bleed the brake system.
  8.  

1982-85 Models
  1. Remove the sliding bushing and boot.
  2.  
  3. Carefully remove the main pin boot with a chisel.
  4.  
  5. Apply compressed air to the brake line union to force the piston out of its bore. Be careful, the piston may come out with great force!
  6.  
  7. Remove the cylinder boot and set ring from the cylinder.
  8.  
  9. Carefully pry the piston seal out of the cylinder bore. Check the piston and cylinder bore for wear and/or corrosion. Clean all metal components in clean brake fluid; replace any rubber part that is visibly worn or damaged.
  10.  

To assemble:
  1. Coat all components with clean brake fluid.
  2.  
  3. Install the seal and piston in the cylinder bore, after coating them with the rubber lubricant supplied in the rebuilding kit. Seat the piston in the bore with your fingers.
  4.  
  5. Fit the boot into the groove in the cylinder bore.
  6.  
  7. Install the caliper assembly. Install a new main pin boot by pressing it on with a 21mm socket. When installing the caliper onto the main pin, make sure the boot end is installed into the groove on the main pin.
  8.  
  9. Bleed the brake system.
  10.  

 
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