Subaru Car 1998-05

Wheel Bearings

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Adjustment



the wheel bearings are not adjustable.

The wheel bearings are not adjustable.


NOTE
The wheel hub bearing assembly is not repairable; it must be replaced when defective.

  1. Verify that the wheel bearings operate smoothly.
  2.  
  3. Install a dial indicator to the wheel hub bearing assembly and check the axial end-play; it should be less than 0.0020 in. (0.05mm).
  4.  
  5. If the axial end-play exceeds specifications, the wheel bearing must be replaced.
  6.  

The wheel bearings are not adjustable.

Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Steering knuckle assembly from the vehicle
     

  4.  
  5. Position the steering knuckle in a soft-jawed vise.
  6.  
  7. Press the hub from the steering knuckle. If the inner bearing race remains in the hub, press it out.
  8.  
  9. Remove or disconnect the following:

    Rotor shield
     
    Inner and outer seals
     
    Snapring from the steering knuckle
     

  10.  
  11. Press the inner bearing race to remove the outer bearing.
  12.  
  13. Remove or disconnect the following:

    Tone ring, if equipped with Anti-lock Brake System (ABS)
     
    Wheel lugs from the hub using a suitable press
     

  14.  


NOTE
To prevent deforming the hub, do not hammer the lugs out.

To install:

  1. Install or connect the following:

    Wheel lugs into the hub using a suitable press
     

  2.  
  3. If equipped with ABS, clean all foreign material from the hub and tone ring.
  4.  
  5. Install or connect the following:

    Tone ring
     

  6.  
  7. Clean the inside of the steering knuckle.
  8.  
  9. Remove the plastic lock from the inner race and press a new greased bearing into the hub by pressing the outer race.
  10.  
  11. Install or connect the following:

    Snapring into its groove
     
    New outer oil seal using a press, until it contacts the bottom of the housing
     
    New inner oil seal using a press, until it contacts the circlip
     

  12.  
  13. Apply grease to the oil seal lips.
  14.  
  15. Install or connect the following:

    Rotor shield and tighten the bolts to 10 ft. lbs. (14 Nm)
     
    Hub to the steering knuckle
     

  16.  
  17. Press a new bearing into the hub by driving the inner race.
  18.  
  19. Install the steering knuckle on the vehicle.
  20.  

  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2.  
  3. Remove or disconnect the following:

    Steering knuckle assembly from the vehicle
     

  4.  
  5. Position the steering knuckle in a soft-jawed vise.
  6.  
  7. Press the hub from the steering knuckle. If the inner bearing race remains in the hub, press it out.
  8.  
  9. Remove or disconnect the following:

    Rotor shield
     
    Inner and outer seals
     
    Snapring from the steering knuckle
     

  10.  
  11. Press the inner bearing race to remove the outer bearing.
  12.  
  13. Remove or disconnect the following:
    NOTE
    To prevent deforming the hub, do not hammer the lugs out.



    Tone ring, if equipped with Anti-lock Brake System (ABS)
     
    Wheel lugs from the hub using a suitable press
     

  14.  

To install:

  1. Install or connect the following:

    Wheel lugs into the hub using a suitable press
     

  2.  
  3. If equipped with ABS, clean all foreign material from the hub and tone ring.
  4.  
  5. Install or connect the following:

    Tone ring
     

  6.  
  7. Clean the inside of the steering knuckle.
  8.  
  9. Remove the plastic lock from the inner race and press a new greased bearing into the hub by pressing the outer race.
  10.  
  11. Install or connect the following:

    Snapring into its groove
     
    New outer oil seal using a press, until it contacts the bottom of the housing
     
    New inner oil seal using a press, until it contacts the circlip
     

  12.  
  13. Apply grease to the oil seal lips.
  14.  
  15. Install or connect the following:

    Rotor shield and tighten the bolts to 10 ft. lbs. (14 Nm)
     
    Hub to the steering knuckle
     

  16.  
  17. Press a new bearing into the hub by driving the inner race.
  18.  
  19. Install the steering knuckle on the vehicle.
  20.  



Click image to see an enlarged view

Fig. Front axle and bearing assembly-typical (1997)

Front axle and bearing assembly-typical (1997)

Click image to see an enlarged view

Fig. Driving out the inner bearing assembly (1997)

Driving out the inner bearing assembly (1997)

Click image to see an enlarged view

Fig. Remove the snapring from inside the knuckle assembly (1997)

Remove the snapring from inside the knuckle assembly (1997)

Click image to see an enlarged view

Fig. Pressing the bearing in (1997)

Pressing the bearing in (1997)
  1. Remove the steering knuckle assembly from the vehicle, and secure in a soft-jawed vise.
  2.  
  3. Drive out the hub from the steering knuckle. If the inner bearing race remains in the hub, press it out.
    NOTE
    Be careful not to scratch the polished area of the hub.

  4.  
  5. Remove the rotor shield, inner and outer seals.
  6.  
  7. Remove the snapring from the steering knuckle.
  8.  
  9. Press the inner bearing race to remove the outer bearing.
  10.  
  11. If equipped with ABS, remove the tone ring.
  12.  
  13. Press the wheel lugs from the hub.
    NOTE
    To prevent deforming the hub, do not hammer the lugs out.

  14.  

To install:

  1. Press new wheel lugs into the hub. If equipped, clean all foreign material from the hub and tone ring. Install the tone ring. Clean the inside of the steering knuckle.
  2.  
  3. Remove the plastic lock from the inner race and press a new, greased bearing into the hub by pressing the outer race. Install the snapring into its groove.
  4.  
  5. Press a new outer oil seal until it contacts the bottom of the housing. Press a new inner oil seal until it contacts the circlip. Apply grease to the oil seal lips.
  6.  
  7. Install the rotor shield and tighten the bolts to 10 ft. lbs. (14 Nm).
  8.  
  9. Attach the hub to the steering knuckle. Press a new bearing into the hub by driving the inner race.
  10.  
  11. Install the steering knuckle.
  12.  



Click image to see an enlarged view

Fig. Disassembled front wheel bearing assembly-SVX

Disassembled front wheel bearing assembly-SVX

Click image to see an enlarged view

Fig. Pressing the bearing out-SVX

Pressing the bearing out-SVX

Click image to see an enlarged view

Fig. Installing the hub assembly-SVX

Installing the hub assembly-SVX

  1. Remove the steering knuckle assembly from the vehicle.
  2.  
  3. Using a hub stand, 28099PA080 or equivalent, support the steering knuckle assembly.
  4.  
  5. Drive the hub out of the steering knuckle using tool 28099PA040, or equivalent hub remover.
  6.  
  7. Remove the backing plate from the steering knuckle.
  8.  
  9. Remove the inner and outer wheel seals using a suitable prying tool.
  10.  
  11. Remove the snapring from the rear of the steering knuckle.
  12.  
  13. Using a bearing installer, 28099PA000 or equivalent remove the outer bearing.
  14.  
  15. Installation is the reverse of removal.
  16.  

  1. Remove or disconnect the following:

    Steering knuckle assembly from the vehicle
     

  2.  
  3. Position the steering knuckle in a soft-jawed vise.
  4.  
  5. Press the hub from the steering knuckle. If the inner bearing race remains in the hub, press it out.
  6.  
  7. Remove or disconnect the following:

    Rotor shield
     
    Inner and outer seals
     
    Snapring from the steering knuckle
     

  8.  
  9. Press the inner bearing race to remove the outer bearing.
  10.  
  11. Remove or disconnect the following:
    NOTE
    To prevent deforming the hub, do not hammer the lugs out.



    Tone ring, if equipped with Anti-lock Brake System (ABS)
     
    Wheel lugs from the hub using a suitable press
     

  12.  

To install:

  1. Install or connect the following:

    Wheel lugs into the hub using a suitable press
     

  2.  
  3. If equipped with ABS, clean all foreign material from the hub and tone ring.
  4.  
  5. Install or connect the following:

    Tone ring
     

  6.  
  7. Clean the inside of the steering knuckle.
  8.  
  9. Remove the plastic lock from the inner race and press a new greased bearing into the hub by pressing the outer race.
  10.  
  11. Install or connect the following:

    Snapring into its groove
     
    New outer oil seal using a press, until it contacts the bottom of the housing
     
    New inner oil seal using a press, until it contacts the circlip
     

  12.  
  13. Apply grease to the oil seal lips.
  14.  
  15. Install or connect the following:

    Rotor shield and tighten the bolts to 10 ft. lbs. (14 Nm)
     
    Hub to the steering knuckle
     

  16.  
  17. Press a new bearing into the hub by driving the inner race.
  18.  
  19. Install the steering knuckle on the vehicle.
  20.  


NOTE
It may be necessary to remove the front halfshaft from the vehicle.

  1. Disconnect the negative battery cable.
  2.  
  3. Raise and support the vehicle safely.
  4.  
  5. Remove the tire and wheel.
  6.  
  7. Remove the crimped section of the axle nut. Depress the brake pedal and remove the axle nut.
    NOTE
    Be sure to loosen the axle nut after removing the tire and wheel from the vehicle. Failure to do this may damage the wheel bearings.

  8.  
  9. Remove the disc brake caliper from its mounting as suspend it to the side, with wire. Do not disconnect the brake line.
  10.  
  11. Remove the rotor.
    NOTE
    If the rotor is seized within the hub, remove the rotor by installing an 8mm bolt in the screw hole on the rotor.

  12.  
  13. Remove the ABS wheel speed sensor assembly and harness.
  14.  
  15. Remove the four bolts from the housing.
  16.  
  17. Remove the front hub unit bearing. Use tools ST92647000 and ST28099PA100 if necessary.
  18.  

To install:

  1. Tighten the front hub unit bearing to housing bolts to 47.9 ft. lbs. (65 Nm).
  2.  
  3. Be sure to use a new axle nut. Tighten the axle nut, temporarily.
  4.  
  5. Install the rotor. Install the caliper.
  6.  
  7. While depressing the brake pedal, tighten the axle nut (olive color) to 162 ft. lbs. (220 Nm). Lock it securely in place.
    NOTE
    Install the tire and wheel after installation of the axle nut. Failure to do this may result in wheel bearing damage. Do not over tighten, as this too could cause wheel bearing damage.

  8.  
  9. Continue the installation in the reverse order of the removal procedure.
  10.  

  1. Disconnect the negative battery cable.
  2.  
  3. Raise and support the vehicle safely.
  4.  
  5. Remove the tire and wheel.
  6.  
  7. Remove the crimped section of the axle nut. Depress the brake pedal and remove the axle nut.
    NOTE
    Be sure to loosen the axle nut after removing the tire and wheel from the vehicle. Failure to do this may damage the wheel bearings.

  8.  
  9. Remove the stabilizer link.
  10.  
  11. Remove the disc brake caliper from its mounting as suspend it to the side, with wire. Do not disconnect the brake line.
  12.  
  13. Remove the rotor.
    NOTE
    If the rotor is seized within the hub, remove the rotor by installing an 8mm bolt in the screw hole on the rotor.

  14.  
  15. Remove the cotter pin and castle nut which secure the tie rod end to the housing knuckle arm.
  16.  
  17. Using a puller, remove the tie rod ball joint from the knuckle arm.
  18.  
  19. Remove the ABS wheel speed sensor assembly and harness. Remove the bolt that retains the sensor harness to the strut.
  20.  
  21. Remove the transverse link ball joint from the housing.
  22.  
  23. Remove the inner joint from the transmission spindle.
    NOTE
    Do not pull the inner joint when removing the front halfshaft.

  24.  
  25. Remove the front halfshaft from the hub. Use tools ST92647000 and ST28099PA100 if necessary.
    NOTE
    Be careful not to damage the oil seal lip and tone wheel when removing the halfshaft. If the front halfshaft is removed, replace the inner seal with a new one.

  26.  
  27. After scribing an alignment mark on the camber adjusting bolt head, remove the bolts which connect the housing and the strut. Disconnect the housing from the strut.
  28.  

To install:

  1. While aligning the alignment mark on the camber adjusting bolt head, connect the housing and strut. Tighten the bolt to 130 ft. lbs. (177 Nm).
    NOTE
    When the self locking nut is removed, replace it with a new one.

  2.  
  3. Install the halfshaft.
  4.  
  5. Continue the installation in the reverse order of the removal procedure.
  6.  
  7. Be sure to use a new axle nut. While depressing the brake pedal, tighten the axle nut to 162 ft. lbs. (220 Nm). Lock it securely in place.
    NOTE
    Install the tire and wheel after installation of the axle nut. Failure to do this may result in wheel bearing damage. Do not over tighten, as this too could cause wheel bearing damage.

  8.  
  9. Continue the installation in the reverse order of the removal procedure.
  10.  

 
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