ISUZU Amigo/Pick-ups/Rodeo/Trooper 1981-1996

Brake Pads

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INSPECTION



See Figures 1 and 2



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Fig. Fig. 1: Use a tape measure to check the pad thickness



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Fig. Fig. 2: Remove the pads and check for deep grooves, indicating needed rotor service

Brake pads should be inspected once a year or at 6,000 miles (9,600 km) intervals, whichever occurs first. Check both ends of the outboard pad, looking in at each end of the caliper; then check the lining thickness of the inboard pad, looking down through the inspection hole. On riveted pads, the lining should be more than 1 / 32 in. (0.8mm) thick above the rivet (so that the lining is thicker than the metal backing in most cases) in order to prevent the rivet from scoring the rotor. On bonded brake pads, a minimum lining thickness of 1 / 32 in. (0.8mm) above the backing plate should be used to determine necessary replacement intervals. Keep in mind that any applicable state inspection standards that are more stringent take precedence. All four front pads MUST be replaced as a set if one shows excessive wear.

All models should be equipped with a wear indicator that makes a noise when the linings have worn to a degree where replacement is necessary. The spring clip is an integral part of the inboard pad and lining. When the brake pad reaches a certain degree of wear, the clip will contact the rotor and produce a warning noise.

REMOVAL & INSTALLATION



See Figures 3, 4, 5, 6, 7, 8 and 9



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Fig. Fig. 3: Use a C-clamp to compress the caliper piston



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Fig. Fig. 4: Loosen the lower caliper retainer bolt



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Fig. Fig. 5: Slide the caliper retainer bolt out



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Fig. Fig. 6: Lift the caliper up and remove the pad



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Fig. Fig. 7: Remove the plate from the back of the pad, if equipped



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Fig. Fig. 8: If caliper separation is needed, support the caliper so the brake hose is not distorted



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Fig. Fig. 9: Hombre brake pads and caliper

  1. Use a turkey baster or other suitable device to remove half of the volume of brake fluid from the master cylinder. Discard of the brake fluid properly. Do not reuse old brake fluid.
  2.  
  3. Raise and safely support the vehicle on jackstands.
  4.  
  5. Remove the wheel and tire assemblies.
  6.  
  7. Install a C-clamp on the caliper with the solid frame side of the clamp against the back of the caliper and the driving screw end against the metal part (center backing plate) of the outboard pad.
  8.  
  9. Tighten the clamp until the caliper moves sufficiently to bottom the piston in the bore, then remove the clamp.
  10.  
  11. Remove the lower caliper mounting bolt from the back of the caliper.
  12.  
  13. Swing the caliper up and support using a coat hanger or length of wire.
  14.  
  15. Remove the inboard and outboard pads from the caliper or bracket.
  16.  
  17. Remove any brake pads retainer clips from the brake pad or caliper bracket.
  18.  
  19. On Hombre models, remove the inboard pad spring clip from the piston or pad.
  20.  
  21. Remove the bolt ear sleeves and rubber bushings for cleaning, inspection and lubrication.
  22.  

To install:
  1. Check the inside of the caliper for leakage and the condition of the piston dust boot. If necessary, remove the caliper and overhaul or replace it.
  2.  
  3. Lubricate the sleeves and bushings using a suitable silicone lubricant, then attach them to the caliper.
  4.  
  5. Make sure the piston is fully seated in the caliper providing clearance for the new brake pads. If the piston is not compressed, install the old inboard pad and use the C-clamp on the pad and back on the caliper to bottom the piston. BE CAREFUL not to pinch and damage the piston boot.
  6.  
  7. On all models except Hombre, Attach the retainer clips to the brake pads.
  8.  
  9. On Hombre models, install the spring clip to the inboard pad, then install the pad to the caliper. Place the outboard pad in the caliper with its top ears over the caliper ears and the bottom tab engaged in the caliper cutout.
  10.  

Make sure that the wear sensor is facing in the proper direction. On most vehicles it should face toward the rear of the caliper.

  1. On all other models, install the inboard and outboard pads on the caliper bracket.
  2.  
  3. Place the caliper over the rotor, lining up the hole in the caliper ears with the holes in the mounting bracket. Make sure that the brake hose is not twisted or distorted.
  4.  
  5. Carefully insert the mounting bolt through the bracket and caliper (bushing and sleeves), then tighten to 22-25 ft. lbs. (28-32 Nm) for all models except Hombre. On Hombre models, tighten the bolts to 37 ft. lbs. (50 Nm).
  6.  
  7. Pump the brake pedal a several times to seat the linings against the rotors.
  8.  
  9. Install the wheels, then remove the jackstands and carefully lower the vehicle.
  10.  
  11. Check and refill the master cylinder reservoirs with clean brake fluid.
  12.  


CAUTION
DO NOT attempt to move the vehicle until a firm brake pedal is obtained.

  1. Pump the brake pedal to make sure that it is firm. If necessary, bleed the brakes.
  2.  

 
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