Chrysler Colt/Vista 1990-1993 Repair Information

Hub, Knuckle and Wheel Bearings

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REMOVAL & INSTALLATION



See Figures 1 through 6



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Fig. Fig. 1: Hub and knuckle removal/installation - 1990-92 Colt Hatchback and sedan



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Fig. Fig. 2: Hub and knuckle removal/installation - 1990 Colt Wagon



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Fig. Fig. 3: Hub and knuckle removal/installation - 1990-91 2WD Vista



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Fig. Fig. 4: Hub and knuckle removal/installation - 1992-93 Vista



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Fig. Fig. 5: Hub and knuckle removal/installation - 1993 Colt Hatchback and sedan



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Fig. Fig. 6: Hub and knuckle removal/installation - 1990-91 4WD Vista

Colt and 2WD Vista

The following procedure requires the use of several special tools

  1. Remove the axleshaft nut.
  2.  
  3. Raise and support the car with jackstands positioned so that the wheels hang freely.
  4.  
  5. Remove the wheels.
  6.  
  7. Remove the caliper and suspend it out of the way without disconnecting the brake hose.
  8.  
  9. Disconnect the lower ball joint from the knuckle.
  10.  
  11. Disconnect the tie rod end from the knuckle.
  12.  
  13. Using a two-jawed puller, press the axleshaft from the hub.
  14.  
  15. Unbolt the strut from the knuckle. Remove the hub and knuckle assembly from the car.
  16.  
  17. Install first the arm, then the body of special tool MB991056 (Colt), or MB991001 (Vista) on the knuckle and tighten the nut.
  18.  
  19. Using special tool MB990998, separate the hub from the knuckle.
  20.  

Prying or hammering will damage the bearing. Use these special tools, or their equivalent to separate the hub and knuckle.

  1. Place the knuckle in a vise and separate the rotor from the hub.
  2.  
  3. Using special tools, C-293-PA, SP3183 and MB990781, remove the outer bearing inner race.
  4.  
  5. Drive the oil seal and inner bearing inner race from the knuckle with a brass drift.
  6.  
  7. Drive out both outer races in a similar fashion.
  8.  

Always replace bearings and races as a set. Never replace just an inner or outer bearing. If either is in need of replacement, both sets must be replaced.

  1. Thoroughly clean and inspect all parts. Any suspect part should be replaced.
  2.  
  3. Pack the wheel bearings with lithium based wheel bearing grease. Coat the inside of the knuckle with similar grease and pack the cavities in the knuckle. Apply a thin coating of grease to the outer surface of the races before installation.
  4.  
  5. Using special tools C-3893 and MB990776, install the outer races.
  6.  
  7. Install the rotor on the hub and torque the bolts to 36-43 ft lb.
  8.  
  9. Drive the outer bearing inner race into position.
  10.  
  11. Coat the out rim and lip of the oil seal and drive the hub side oil seal into place, using a seal driver.
  12.  
  13. Place the inner bearing in the knuckle.
  14.  
  15. Mount the knuckle in a vise. Position the hub and knuckle together. Install tool MB990998 and tighten the tool to 147-192 ft. lbs. Rotate the hub to seat the bearing.
  16.  
  17. With the knuckle still in the vise, measure the hub starting torque with an in. lb. torque wrench and tool MB990998. Starting torque should be 11.5 inch lbs. If the starting torque is 0, measure the hub bearing axial play with a dial indicator. If axial play exceeds 0.2mm, while the nut is tightened to 145-192 ft. lbs., the assembly has not been done correctly. Disassemble the knuckle and hub and start again.
  18.  
  19. Remove the special tool.
  20.  
  21. Place the outer bearing in the hub and drive the seal into place.
  22.  
  23. Assemble and install the knuckle.
  24.  

4WD Vista

The following procedure requires the use of several special tools.

  1. Remove the hub cap and halfshaft nut.
  2.  
  3. Raise and support the car on jackstands.
  4.  
  5. Remove the front wheels.
  6.  
  7. Drain the transaxle fluid.
  8.  
  9. Disconnect the lower ball joint from the knuckle.
  10.  
  11. Remove the strut and stabilizer bar from the lower arm.
  12.  
  13. Remove the center bearing snapring from the bearing bracket.
  14.  
  15. Lightly tap the double off-set joint outer race with a wood mallet and disconnect the halfshaft from the cardan joint.
  16.  
  17. Disconnect the halfshaft from the bearing bracket.
  18.  
  19. Using a two-jawed puller secured to the hub lugs, press the halfshaft from the hub.
  20.  
  21. Unbolt the strut from the hub. Remove the hub and knuckle assembly from the car.
  22.  
  23. Install first the arm, then the body of special tool MB991056 (Colt) or MB991001 (Vista) on the knuckle and tighten the nut.
  24.  
  25. Using special tool MB990998, separate the hub from the knuckle.
  26.  

Prying or hammering will damage the bearing. Use these special tools, or their equivalent to separate the hub and knuckle.

  1. Matchmark the hub and rotor. The rotor should slide from the hub. If not, insert M8x1.25 bolts in the holes between the lugs and tighten them alternately to press the hub from the rotor. NEVER HAMMER THE ROTOR TO REMOVE IT!
  2.  
  3. Using a two-jawed puller, remove the outer bearing inner race.
  4.  
  5. Remove and discard the outer oil seal.
  6.  
  7. Remove and discard the inner oil seal.
  8.  
  9. Remove the bearing snapring from the knuckle.
  10.  
  11. Using special tools C-4628 and MB991056 or MB991001, remove the bearing from the knuckle. Using a driver, drive the bearing from the knuckle.
  12.  

NOTE: Always replace bearings and races as a set. Never replace just an inner or outer bearing. If either is in need of replacement, both sets must be replaced.

  1. Thoroughly clean and inspect all parts. Any suspect part should be replaced.
  2.  
  3. Pack the wheel bearings with lithium based wheel bearing grease. Coat the inside of the knuckle with similar grease and pack the cavities in the knuckle. Apply a thin coating of grease to the outer surface of the races before installation.
  4.  
  5. Using special tool C-4171 and MB990985, press the bearing into place in the knuckle. Install the snapring.
  6.  
  7. Coat the lips of a new hub-side seal with lithium grease. Using a seal driver, install the seal. Make sure it is flush.
  8.  
  9. Install the rotor on the hub.
  10.  
  11. Using special tool MB990998, join the hub and knuckle. Torque the special tool nut to 188 ft. lbs.
  12.  
  13. Rotate the hub several times to seat the bearing.
  14.  
  15. Mount the knuckle in a vise. Using MB990998 and an in. lb. torque wrench, measure the turning torque. Turning torque should be 15.6 inch lbs. or less. Next, measure the axial play using a dial indicator. Axial play should be 0.2mm. If either the axial play or the turning torque are not within the specified values, the hub and knuckle have not been properly assembled. You will have to do the procedure over again. If everything checks out okay, to onto the next step.
  16.  
  17. Remove all the special tools.
  18.  
  19. Using a seal driver, drive a new seal coated with lithium grease, into place on the halfshaft side, until it contacts the snapring.
  20.  
  21. Assemble and install the knuckle.
  22.  

 
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