Toyota Celica 1986-1993 Repair Guide

Brake Pads

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CAUTION
Brake pads 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.

REMOVAL & INSTALLATION





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Fig. Fig. 1 Rear disc brake components1986-87 Celica shown



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Fig. Fig. 2 Rear disc brake components1988-89 Celica shown

  1. Raise and safely support the vehicle.
  2.  
  3. Remove the wheels. Remove the flexible hose bracket.
  4.  
  5. Siphon a sufficient quantity of brake fluid from the master cylinder reservoir, if necessary, to prevent any brake fluid from overflowing the master cylinder when removing or installing new pads. This may be necessary, since the piston must be forced into the caliper bore to provide sufficient clearance when installing the pads.
  6.  
  7. Grasp the caliper from behind and carefully pull it to start to seat the piston in its bore.
  8.  



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Fig. Fig. 3 Rear disc brake components1990-93 Celica shown



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Fig. Fig. 4 Rear disc brake pad components1990-93 Celica shown

  1. Loosen and remove the caliper mounting pin(s) or bolt(s), and then remove the caliper assembly without disconnecting the brake line. Position it aside.
  2.  
  3. Slide out the old brake pads along with any anti-squeal shims, springs, pad wear indicators and pad support plates. Make sure to note the position of all assorted pad hardware.
  4.  

To install:

  1. Check the brake disc (rotor) for thickness and run-out. Inspect the caliper and piston assembly for cracks, fluid leakage or other damage. Overhaul or replace as necessary.
  2.  
  3. Install the pad support plates into the torque plate.
  4.  
  5. Install the pad wear indicators onto the pads. Be sure the arrow on the indicator plate is pointing in the direction of rotation.
  6.  
  7. Install the anti-squeal shims on the outside of each pad and then install the pad assemblies into the torque plate.
  8.  
  9. Position the caliper back down over the pads. If it won't fit, use a C-clamp or hammer handle and carefully force the piston straightly into its bore.
  10.  
  11. Install and tighten the caliper installation bolt(s) to 14 ft. lbs. (20 Nm).
  12.  
  13. Install the wheels and lower the vehicle. Check the brake fluid level.
  14.  


CAUTION
Make sure to pump the brake pedal before moving the vehicle. This will seat the brake pads against the rotors, otherwise the vehicle may have no braking.

INSPECTION



If you hear a squealing noise coming from the front brakes while driving, check the brake lining thickness and pad wear indicator by looking into the inspection hole on the brake cylinder with the front wheels removed and the vehicle properly supported. The wear indicator is designed to emit the squealing noise when the brake pad wears down to 2.5mm at which time the pad wear plate and the rotor disc rub against each other. If there are traces of the pad wear indicator contacting the rotor disc, the brake pads should be replaced.

To inspect the brake lining thickness, look through the inspection hole and measure the lining thickness using a machinists rule. Also looks for signs of uneven wear. The minimum allowable thickness is 0.039 in. (1.0mm), at which time the brake pads must be replaced.



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Fig. Fig. 5 Rear disc brake pad wear indicator location-Celica



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Fig. Fig. 6 Checking rear disc brake pad thickness-Celica

 
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