Chrysler Colt/Vista 1990-1993 Repair Information

Rear Wheel Bearings

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REMOVAL, INSPECTION AND INSTALLATION



NOTE:The Colt and 1992-93 Vista may be equipped with the removable tapered bearings and seal or a non-removable bearing/hub assembly. If the axle shaft is not tapered, the bearing/hub is serviced as an assembly.

1990-91 2WD Vista
  1. Loosen the lug nuts, raise the rear of the car and support it on jackstands. Remove the wheel.
  2.  
  3. Remove the grease cap, cotter pin, nut and washer.
  4.  
  5. Remove the brake drum. While pulling the drum, the outer bearing will fall out. Position your hand to catch it.
  6.  
  7. Pry out the grease seal and discard it.
  8.  
  9. Remove the inner bearing.
  10.  
  11. Check the bearing races. If any scoring, heat checking or damage is noted, they should be replaced.
  12.  

When bearings or races need replacement, replace them as a set.

  1. Inspect the bearings. If wear or looseness or heat checking is found, replace them.
  2.  
  3. If the bearings and races are to be replaced, drive out the races with a brass drift.
  4.  
  5. Before installing new races, coat them with lithium based wheel bearing grease. The races are most easily installed using a driver made for that purpose. They can, however, be driven into place with a brass drift. Make sure that they are fully seated.
  6.  
  7. Thoroughly pack the bearings with lithium based wheel bearing grease. Pack the hub with grease.
  8.  
  9. Install the inner bearing and coat the lip and rim of the grease seal with grease. Drive the seal into place with a seal driver.
  10.  
  11. Mount the drum onto the hub, slide the outer bearing into place, install the washer and thread the nut into place, finger-tightly.
  12.  
  13. Install a torque wrench on the nut. While turning the drum by hand, tighten the nut to 15 ft. lbs. Back off the nut until it is loose, then tighten it to 4 ft. lbs. If your torque wrench is not all that accurate below 10 ft. lbs. (most aren't), use an inch lbs. torque wrench and tighten the nut to 48 inch lbs.
  14.  
  15. Install the lock cap and insert a new cotter pin. If the lock cap and hole don't align, and repositioning the cap can't accomplish alignment, back off the nut no more than 15 degrees. If that won't align the holes either, try the adjustment procedure over again.
  16.  

1992-93 2WD Vista

See Figure 1



Click image to see an enlarged view

Fig. Fig. 1: Rear wheel bearing - 1992-93 2WD Vista

  1. Raise the vehicle and support safely. Remove the tire and wheel assembly.
  2.  
  3. If equipped with ABS, remove the caliper assembly, brake disc and rear wheel speed sensor from the adapter. If not equipped with ABS, remove the brake drum.
  4.  

The speed sensor has a pole piece projecting from it. This exposed tip must be protected from impact or scratches. Do not allow the pole piece to contact the toothed wheel during removal or installation.

  1. Remove the dust cap, nut and washer. Do not use an air gun to remove the nut.
  2.  
  3. Remove the rear hub assembly taking care not to scrape or damage the teeth of the speed rotor, if equipped.
  4.  
  5. Inspect the hub unit bearing for wear or damage. If replacement of the bearing is required, the hub assembly and bearing is to be replaced as a unit. The rear hub unit bearing assembly should should not be dismantled.
  6.  

To install:
  1. Installation is the reverse of the removal procedure. Install the drum and/or hub to the vehicle. Lubricate and install the outer wheel bearing to the spindle. Torque the self-locking nut to 166 ft. lbs. (230 Nm). Stake the nut.
  2.  
  3. If equipped with ABS: insert a feeler gauge into the space between the speed sensor's pole piece and the toothed surface. Tighten the speed sensor at the position where the clearance at all places is 0.008-0.028 in. (0.2-0.7mm).
  4.  

Colt

See Figures 2, 3 and 4



Click image to see an enlarged view

Fig. Fig. 2: Rear wheel bearing - 1990 Colt hatchback and sedan



Click image to see an enlarged view

Fig. Fig. 3: Rear wheel bearing - 1991-92 Colt hatchback and sedan



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Fig. Fig. 4: Rear wheel bearing - 1993 Colt hatchback and sedan

Special tools are needed for this procedure.

  1. Loosen the lug nuts. Raise the rear of the car and support it on jackstands.
  2.  
  3. Remove the wheel.
  4.  
  5. Remove the grease cap.
  6.  
  7. Remove the nut.
  8.  
  9. Pull the drum off. The outer bearing will fall out while the drum is coming off, so position your hand to catch it.
  10.  
  11. Pry out the oil seal. Discard it.
  12.  
  13. Remove the inner bearing.
  14.  
  15. Check the bearing races. If any scoring, heat checking or damage is noted, they should be replaced.
  16.  

When bearings or races need replacement, replace them as a set.

  1. Inspect the bearings. If wear or looseness or heat checking is found, replace them.
  2.  
  3. If the bearings and races are to be replaced, drive out the races with a brass drift.
  4.  
  5. Before installing new races, coat them with lithium based wheel bearing grease. The races are most easily installed using a driver made for that purpose. They can, however, be driven into place with a brass drift. Make sure that they are fully seated.
  6.  
  7. Thoroughly pack the bearings with lithium based wheel bearing grease. Pack the hub with grease.
  8.  
  9. Install the inner bearing and coat the lip and rim of the grease seal with grease.Drive the seal into place with a seal driver.
  10.  
  11. Mount the drum on the axleshaft. Install the outer bearing. Don't install the nut at this point.
  12.  
  13. Using a pull scale attached to one of the lugs, measure the starting force necessary to get the drum to turn. Starting force should be 5 lbs. If the starting torque is greater than specified, replace the bearings.
  14.  
  15. Install the nut on the axleshaft. Thread the nut on, by hand, to a point at which the back face of the nut is 2-3mm from the shoulder of the shaft (where the threads end).
  16.  
  17. Using an inch lbs. torque wrench, turn the nut counterclockwise 2 to 3 turns, noting the average force needed during the turning procedure. Turning torque for the nut should be above 48 inch lbs. If turning torque is not within 5 inch lbs., either way, replace the nut.
  18.  
  19. Tighten the nut to 75-110 ft. lbs.
  20.  
  21. Using a stand-mounted gauge, check the axial play of the wheel bearings. Play should be less than 0.2mm. If play cannot be brought within that figure, you probably have assembled the unit incorrectly.
  22.  
  23. Pack the grease cap with wheel bearing grease and install it.
  24.  

ADJUSTMENT



Removable Bearings
COLT
  1. Raise the vehicle and support it safely. Remove the rear wheel and wheel bearing cap.
  2.  
  3. Using an inch lb. torque wrench, turn the nut counterclockwise 2-3 turns, noting the average force needed during the turning procedure. Turning torque for the nut should be about 48 inch lbs. (5.4 Nm). If turning torque is not within 5 inch lbs. (0.5 Nm), either way, replace the nut.
  4.  
  5. Tighten the nut to 108-145 ft. lbs. (150-200 Nm) on 1989-93 vehicles.
  6.  
  7. Using a stand mounted gauge, check the axial play of the wheel bearings. Play should be less than 0.0079 in. (0.2007mm). If play cannot be brought within that figure, the unit is assembled incorrectly.
  8.  
  9. Pack the grease cap with wheel bearing grease and install it.
  10.  

Non-Removable Bearings

Install the drum and/or hub to the vehicle. Lubricate and install the outer wheel bearing to the spindle. Torque the self-locking nut to 108-145 ft. lbs. (150-200 Nm). Stake the nut. Fill the cap with wheel bearings grease and install.

1990-91 2WD VISTA
  1. Raise the vehicle and support it safely. Remove the rear wheel, wheel bearing cap and cotter pin.
  2.  
  3. Install a torque wrench on the nut. While turning the drum by hand, tighten the nut to 15 ft. lbs. (20 Nm). Back off the nut until it is loose, then tighten it to 7 ft. lbs. (9 Nm).
  4.  
  5. Install the lock cap and insert a new cotter pin. If the lock cap and hole don't align and repositioning the cap can't accomplish alignment, back off the nut no more than 15 degrees. If that won't align the holes either, try the adjustment procedure over again.
  6.  

1992-93 2WD VISTA

Install the drum and/or hub to the vehicle. Lubricate and install the outer wheel bearing to the spindle. Torque the self-locking nut to 166 ft. lbs. (230 Nm). Stake the nut. Fill the cap with wheel bearing grease and install.

 
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