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

Front Wheel Bearings

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CAUTION
Some 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.

ADJUSTMENT



2-Wheel Drive Models

See Figure 1



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Fig. Fig. 1: 2WD rotor and bearing assembly-Hombre

  1. Raise the car and support safely on jackstands.
  2.  
  3. Remove the hub dust cover and spindle cotter pin. Loosen the nut.
  4.  
  5. While spinning the wheel, snug the nut down to seat the bearings. Do not exert more than 12 ft. lbs. 16 Nm) of force on the nut.
  6.  
  7. Back the nut off 1 / 4 turn or until it is just loose. Line up the cotter pin hole in the spindle with the hole in the nut.
  8.  

Do not loosen the nut more than1/2turn.

  1. Insert a new cotter pin. End-play should be between 0.001-0.005 in. (0.03-0.13mm). If end-play exceeds this tolerance, the wheel bearings should be replaced.
  2.  

4-Wheel Drive Models

The front wheel bearing on 4WD models is not adjustable or serviceable. If excessive noise is produced by the wheel bearing, the assembly must be replaced.

REMOVAL & INSTALLATION



2-Wheel Drive Models

See Figures 2, 3 and 4



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Fig. Fig. 2: Removing the inner bearing seal



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Fig. Fig. 3: Driving out the bearing race-2WD models



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Fig. Fig. 4: Installing the bearing seal

  1. Raise support the vehicle on jackstands.
  2.  
  3. Remove the front wheel and tire assembly.
  4.  
  5. Remove the brake caliper and support it with wire. Do not allow the caliper to hang from the flexible hose.
  6.  
  7. Remove the dust cap, cotter pin, castle nut, thrust washer and outside wheel bearing. Pull the disc/hub assembly from the steering knuckle and place on a clean work surface.
  8.  
  9. Pry out the inner seal using a suitable seal remover, then remove the inner bearing. If necessary, use a hammer and a brass drift to drive the bearing race from the hub.
  10.  
  11. Clean all parts in kerosene or equivalent, DO NOT use gasoline. After cleaning, check the parts for excessive wear and replace any damaged parts.
  12.  

To install:
  1. Pack the wheel bearing and race with grease.
  2.  
  3. Install the bearing races into the hub, using a hammer and an installation tool or a brass drift. Drive the races in until they seat against the shoulder of the hub.
  4.  
  5. Install the inner bearing in the hub. Install a new grease seal using a seal installation tool. Be careful not to damage the seal.
  6.  
  7. Install the disc/hub assembly onto the steering knuckle. Install the outer bearing, thrust washer and castle nut. Tighten the nut until the wheel does not turn freely.
  8.  
  9. Back off the nut until the wheel turns freely and install the cotter pin. Install the dust cap, caliper and wheel. Lower the vehicle.
  10.  

4-Wheel Drive Models

See Figures 5 and 6



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Fig. Fig. 5: Removing the bearing using a slide hammer



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Fig. Fig. 6: Installing the bearing

  1. Raise and safely support the vehicle on jackstands. Remove the wheel and tire assembly.
  2.  
  3. Remove the brake caliper and support it on a wire. Remove the rotor and dust shield.
  4.  
  5. Remove the axle shaft from the hub.
  6.  
  7. Remove the tie rod end-to-steering knuckle nut and separate the tie rod from the steering knuckle.
  8.  
  9. Support the lower control arm and separate the steering knuckle from the lower ball joint.
  10.  
  11. Separate the steering knuckle from the upper ball joint.
  12.  
  13. Remove the steering knuckle from the vehicle and place on a clean work surface.
  14.  
  15. Remove the bearing seal and bearing, then the races using a hammer and a brass drift.
  16.  

To install:
  1. Install the bearing races using a suitable race installer and a press. If a bearing race installer is not available. Grind about 0.010-0.020 in. (0.25-0.50mm) off of the outer portion of the old race and use that to drive the new race into position. Be careful not to damage the new race. Bearing damage will result.
  2.  
  3. Install the steering knuckle to the upper, then lower ball joints. Attach the retainer nuts
  4.  
  5. Torque the ball joint nuts to 75 ft. lbs. (97 Nm). Install new cotter pins.
  6.  
  7. Install the tie rod end-to-steering knuckle nut.
  8.  
  9. Install the axle shaft to the hub. Tighten the retainer bolts to 9 ft. lbs. (12 Nm).
  10.  
  11. Install the dust cover, rotor and brake caliper as outlined in Brakes .
  12.  
  13. Install the front wheel and lower the vehicle.
  14.  

PACKING



Proper and regular greasing of the wheel bearing can prolong the life of the bearing.

Clean the wheel bearings thoroughly with solvent and check their condition before installation.


CAUTION
Do not blow the bearing dry with compressed air as this would allow the bearing to turn without lubrication.

There are several different types of inexpensive wheel bearing packing tools available at most automotive parts stores. Although they all work well. they really do not work any better than the old-fashion method of hand greasing.

To hand grease a bearing place a sizable amount of lubricant in the palm of one hand. Using your other hand, work the bearing into the lubricant so that the grease is pushed through the rollers and out the other side. Keep rotating the bearing while continuing to push the lubricant through it.

 
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