Toyota Celica/Supra 1971-1985 Repair Guide

Brake Shoes

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REMOVAL & INSTALLATION



See Figures 1 through 22

The parking brakes on rear disc brake equipped models are actually small drum brakes which work inside the brake rotor/hub. Their design and construction is virtually identical to the rear drum service brakes found on other models. Also, replacement shoes/linings are usually bought on an exchange basis, as are most drum type service brake shoes.

  1. Remove the rear disc brake assembly. Hang the caliper from the coil spring with a piece of string so the hose is not stretched.
  2.  
  3. Using pliers, remove the brake return springs. Remove the shoe strut with the springs.
  4.  
  5. Slide out the front brake shoe and remove the shoe adjusting screw set. Remove the tension spring, and remove the shoe.
  6.  
  7. Slide out the rear shoe, and disconnect the parking brake cable from the parking brake shoe lever. Remove the rear brake shoe.
  8.  
  9. Measure the brake shoe lining thickness. Standard thickness is 0.079 inch (2mm), and minimum allowable thickness is 0.039 inch (0.99mm). If the lining is thinner than minimum, replace the brake shoes on both wheels (to maintain even braking on both wheels). Maximum disc inside diameter is 6.61 inch (167mm).
  10.  
  11. To reassemble the parking brake, apply non-melting type grease to the sliding surfaces on the back plate as shown. Apply the same grease to the adjusting screw threads.
  12.  
  13. Compress the cable spring and connect the parking brake lever to the cable.
  14.  
  15. Slide the rear brake shoe between the hold-down spring seat and the backing plate.
  16.  


CAUTION
Do not allow oil or grease to contact the faces of the brake linings, as braking ability will be severely compromised.

  1. Install the tension spring to the rear shoe, and connect the front shoe to the tension spring. Install the shoe adjusting screw set between the front and rear shoes. Slide in the front shoe between the shoe hold-down spring seat and the backing plate.
  2.  
  3. Install the front shoe return spring, and also the strut with the spring.
  4.  
  5. Install the brake disc assembly by aligning the groove on the rear axle flange with the service hole on the disc. You may have to back off the adjuster to install the hub.
  6.  
  7. Temporarily install the disc hub nuts. From the front side of the hub, turn the adjuster star wheel and expand the shoes until the disc cannot be turned by hand. Back off the adjuster wheel about 8 turns.
  8.  
  9. Inspect and adjust the parking brake lever travel.
  10.  



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Fig. Fig. 1: Remove the caliper from the rotor ...



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Fig. Fig. 2: ... then hang it off to the side with the brake hose attached



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Fig. Fig. 3: If necessary, back off the parking brake



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Fig. Fig. 4: Spray lubricant to aid in rotor removal



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Fig. Fig. 5: Thread two bolts into the rotor to ease removal before pulling off the disc



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Fig. Fig. 6: Inspect the parking shoes; as you can see, these shoes are moderately worn



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Fig. Fig. 7: Spray brake cleaner onto the components prior to removal to ease the job



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Fig. Fig. 8: Use a suitable tool to unhook the shoe return springs



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Fig. Fig. 9: Using a suitable tool, depress and twist the spring retainer 90°deg; ...



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Fig. Fig. 10: ... then remove the hold-down spring and retaining hardware



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Fig. Fig. 11: Parking shoe assembly removed from the axle shaft



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Fig. Fig. 12: Apply grease to the various areas shown



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Fig. Fig. 13: Apply grease to the adjusting screw set



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Fig. Fig. 14: Attach the parking brake lever to the cable ...



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Fig. Fig. 15: ... then install the tension spring, front shoe and shoe adjusting set



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Fig. Fig. 16: Install the front shoe return spring



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Fig. Fig. 17: Install the rear shoe and return spring



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Fig. Fig. 18: Align the groove on the axle shaft flange and service hole on the rotor



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Fig. Fig. 19: Adjust the parking brake shoe clearance ...



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Fig. Fig. 20: ... then replace the rubber plug



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Fig. Fig. 21: Pull the parking lever up all the way, and count the number of notches it travels



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Fig. Fig. 22: Exploded view of the parking brake shoe assembly

 
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