Hyundai Coupes/Sedans 1986-1993 Repair Guide

Rear Wheel Bearings

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Removal, packing and installation of the rear wheel bearings is covered in this Section. In addition to bearing service we also tell you how to replace the bearing races and grease seals if such service is required, but you need use only the steps that apply to packing the bearings.

For front wheel bearing service, please refer to Drive Train .

REMOVAL, PACKING AND INSTALLATION



See Figures 1, 2 and 3

Sodium based grease is not compatible with lithium based grease. Read the package labels and be careful not to mix the two types. If there is any doubt as to the type of grease used, completely clean the old grease from the bearing and hub before replacing.

Before handling the bearings, there are a few things that you should remember to do and not to do.

Remember to DO the following:



Remove all outside dirt from the housing before exposing the bearing.
 
Treat a used bearing as gently as you would a new one.
 
Work with clean tools in clean surroundings.
 
Use clean, dry canvas gloves, or at least clean, dry hands.
 
Clean solvents and flushing fluids are a must.
 
Use clean paper when laying out the bearings to dry.
 
Protect disassembled bearings from rust and dirt. Cover them up.
 
Use clean rags to wipe bearings.
 
Keep the bearings in oil-proof paper when they are to be stored or are not in use.
 
Clean the inside of the housing before replacing the bearing.
 

Do NOT do the following:



Don't work in dirty surroundings.
 
Don't use dirty, chipped or damaged tools.
 
Try not to work on wooden work benches or use wooden mallets.
 
Don't handle bearings with dirty or moist hands.
 
Do not use gasoline for cleaning. Use a safe solvent.
 
Do not spin dry bearings with compressed air. They will be damaged.
 
Avoid using cotton waste or dirty cloths to wipe bearings.
 
Try not to scratch or nick bearing surfaces.
 
Do not allow the bearing to come in contact with dirt or rust at any time.
 



Click image to see an enlarged view

Fig. Fig. 1: 1986-89 Excel rear hub assembly



Click image to see an enlarged view

Fig. Fig. 2: 1989-91 Sonata rear hub assembly



Click image to see an enlarged view

Fig. Fig. 3: 1990-93 Excel, Elantra and Scoupe rear hub assembly

Elantra
  1. Safely raise and support the rear of the vehicle. Remove the tire and wheel assembly.
  2.  
  3. Remove the grease cap, axle shaft nut and washer.
  4.  
  5. Pull outward on the brake drum slightly to remove the outer wheel bearing.
  6.  
  7. Slide the drum down the spindle and remove from the vehicle.
  8.  
  9. Pry the inner grease seal from the rear hub of the drum and discard.
  10.  
  11. Remove the inner wheel bearing. If the bearings are being replaced, drive the bearing races from the hub taking care not to damage the inner surface of the drum.
  12.  

To install:
  1. Coat the new races with EP lithium wheel bearing grease and drive them into the hub, making sure they are fully and squarely seated.
  2.  
  3. Pack the hub cavity with new EP lithium wheel bearing grease.
  4.  
  5. Install the inner bearing and drive a new grease seal into place. Make sure to pack the bearings completely with grease prior to installing into the drum.
  6.  
  7. Before installing the rear drum assembly, inspect the rear bearing nut as follows:
    1. Thread the wheel nut onto the spindle until the gap between the shoulder of the spindle and the nut is 0.07-0.11 in. (2.0-3.0mm).
    2.  
    3. Measure the torque required to rotate the rear wheel bearing nut while turning counterclockwise. The limit is 48 ft. lbs. (5.5 Nm). If torque is less than the limit, replace the nut.
    4.  

  8.  
  9. Install the brake drum and bearing assembly onto the spindle and install the outer bearing and shaft nut. Tighten the nut to 108-145 ft. lbs. (150-200 Nm).
  10.  
  11. Check for correct bearing end play by placing a dial indicator on the hub surface and moving the hub outward. Note the movement of the gauge and compare to the desired reading of 0.008 in. or less (0.2mm or less). If end-play exceeds the desired reading, retighten the rear hub bearing nut and recheck end-play. If reading is still excessive, replace the hub unit.
  12.  
  13. If end-play is correct, check the starting torque by attaching a spring balance to the hub lug bolts and pulling at a 90 degree angle while noting the required force to turn the hub. If the torque required is above the desired reading of 4.9 lbs. or less (22 Nm or less), loosen the nut and again tighten to the desired torque. Recheck the starting torque. If torque is still above the desired reading, replace the rear bearings.
  14.  
  15. Install the tire and wheel assembly and lower the vehicle. Prior to moving the vehicle, pump the brakes until a firm pedal is obtained.
  16.  

Excel
  1. Safely raise and support the rear of the vehicle. Remove the tire and wheel assembly.
  2.  
  3. Remove the grease cap, cotter pin, serrated nut cap, axle shaft nut and washer from the spindle as equipped.
  4.  
  5. Pull outward on the brake drum slightly to remove the outer wheel bearing.
  6.  
  7. Slide the drum down the spindle and remove the assembly from the vehicle.
  8.  
  9. Pry the inner grease seal from the rear hub of the drum and discard.
  10.  
  11. Remove the inner wheel bearing. If the bearings are being replaced, drive the bearing races from the hub taking care not to damage the inner surface of the drum.
  12.  

To install:
  1. Coat the new races with EP lithium wheel bearing grease and drive them into the hub, making sure they are fully and squarely seated.
  2.  
  3. Pack the hub cavity with new EP lithium wheel bearing grease.
  4.  
  5. Install the inner bearing and drive a new grease seal into place. Make sure to pack the bearings completely with grease prior to installing into the drum.
  6.  
  7. Install the brake drum onto the spindle. Install the outer bearing, washer and shaft nut onto spindle.
  8.  
  9. On 1986-90 vehicles equipped with castellated nut and cotter pin, torque the bearing nut to 15 ft. lbs. (20 Nm) while turning the drum. Back off the nut until it is loose, then torque it to 48 inch lbs. Install the serrated nut cap and a new cotter pin. If the cotter pin holes have to be re-aligned, back off on the nut no more than 15 degrees; if not, repeat the adjustment procedure.
  10.  
  11. On 1991-93 vehicles equipped with bearing locknut, install and tighten bearing locknut as follows:
    1. Prior to installation, inspect the rear bearing nut by threading the nut onto the spindle until the distance between the shoulder of the spindle and the inner flat on the nut is 0.07-0.11 in. (2.0-3.0mm).
    2.  
    3. Measure the torque required to rotate the rear wheel bearing locknut while turning counterclockwise. The limit is 48 ft. lbs. (5.5 Nm). If required torque is less than the limit, replace the nut.
    4.  
    5. Install the brake drum and outer bearing onto the spindle. Install and torque the nut to 108-145 ft. lbs. (147-196 Nm).
    6.  
    7. Check for correct bearing end-play by placing a dial indicator on the hub surface and moving the drum outward. Note the movement of the gauge and compare to the desired reading of 0.0043 in. or less (0.11mm or less). If end-play exceeds the desired reading, retighten the rear hub bearing nut and recheck end-play. If reading is still excessive, replace the hub unit.
    8.  
    9. If end-play is correct, check the starting torque by attaching a spring balance to the hub lug bolts and pulling at a 90 degree angle while noting the required force to turn the hub. If the torque required is above the desired reading of 4.9 lbs. or less (22 N or less), loosen the nut and again tighten to the desired torque. Recheck the starting torque. If torque is still above the desired reading, replace the rear bearings.
    10.  
    11. After final tightening the wheel bearing nut, align with the spindle's indentation and crimp the edge of the nut to wedge in position.
    12.  

  12.  
  13. Install the tire and wheel assembly and lower the vehicle. Prior to moving the vehicle, pump the brakes until a firm pedal is obtained.
  14.  

Scoupe
  1. Safely raise and support the rear of the vehicle. Remove the tire and wheel assembly.
  2.  
  3. Remove the grease cap, axle shaft nut and washer.
  4.  
  5. Pull outward on the brake drum slightly to remove the outer wheel bearing.
  6.  
  7. Slide the drum down the spindle and remove from the vehicle.
  8.  
  9. Pry the inner grease seal from the rear hub of the drum and discard.
  10.  
  11. Remove the inner wheel bearing. If the bearings are being replaced, drive the bearing races from the hub taking care not to damage the inner surface of the drum.
  12.  

To install:
  1. Coat the new races with EP lithium wheel bearing grease and drive them into the hub, making sure they are fully and squarely seated.
  2.  
  3. Pack the hub cavity with new EP lithium wheel bearing grease.
  4.  
  5. Install the inner bearing and drive a new grease seal into place. Make sure to pack the bearings completely with grease prior to installing into the drum.
  6.  
  7. Before installing the rear drum assembly, inspect the rear bearing nut as follows:
    1. Thread the wheel nut onto the spindle until the gap between the shoulder of the spindle and the nut is 0.07-0.11 in. (2.0-3.0mm).
    2.  
    3. Measure the torque required to rotate the rear wheel bearing nut while turning counterclockwise. The limit is 48 ft. lbs. (5.5 Nm). If torque is less than the limit, replace the nut.
    4.  

  8.  
  9. Install the brake drum and bearing assembly onto the spindle and install the outer bearing and shaft nut. Tighten the nut to 108-145 ft. lbs. (150-200 Nm).
  10.  
  11. Check for correct bearing end play by placing a dial indicator on the hub surface and moving the hub outward. Note the movement of the gauge and compare to the desired reading of 0.0043 in. or less (0.11mm or less). If end-play exceeds the desired reading, retighten the rear bearing nut and recheck end-play. If reading is still excessive, replace the rear bearings.
  12.  
  13. Once end-play is correct, check the hub and drum starting force by attaching a spring balance to the lug bolts and pulling at a 90 degree angle while noting the required force to turn the drum assembly. If the torque required is above the desired reading of 4.8 lbs. or less (22 N or less), loosen the nut and again tighten to the desired torque. Recheck the starting torque. If torque is still above the desired reading, replace the rear bearings.
  14.  
  15. After final tightening the wheel bearing nut, align with the spindle's indentation and crimp the edge of the nut to wedge in position.
  16.  
  17. Install the tire and wheel assembly and lower the vehicle. Prior to moving the vehicle, pump the brakes until a firm pedal is obtained.
  18.  

Sonata
1989-91

The rear hub bearing unit cannot be disassembled. If the hub shows signs of wear or damage, replacement of the unit is required.

  1. Safely raise and support the rear of the vehicle. Remove the tire and wheel assembly.
  2.  
  3. If equipped with rear disc brakes, remove the brake caliper and support out of the way using wire. Do not disconnect the brake hose from the caliper. Remove the brake rotor. If equipped with drum brakes, remove the brake drum from the hub assembly.
  4.  
  5. Remove the grease cap, cotter pin, serrated nut cap, axle shaft nut and washer from the spindle as equipped.
  6.  
  7. Pull outward on the rear hub assembly slightly to remove the outer wheel bearing.
  8.  
  9. Slide the hub down the spindle and remove the assembly from the vehicle.
  10.  
  11. Pry the inner grease seal from the hub and discard.
  12.  
  13. Remove the inner wheel bearing. If the bearings are being replaced, drive the bearing races from the hub taking care not to damage the inner surface of the hub.
  14.  

To install:
  1. Coat the new races with EP lithium wheel bearing grease and drive them into the hub, making sure they are fully and squarely seated.
  2.  
  3. Pack the hub cavity with new EP lithium wheel bearing grease.
  4.  
  5. Install the inner bearing and drive a new grease seal into place. Make sure to pack both bearings completely with grease prior to installing into the hub.
  6.  
  7. Install the hub assembly onto the spindle. Install the outer bearing, washer and shaft nut onto the spindle.
  8.  
  9. Torque the bearing nut to 14 ft. lbs. (20 Nm) while turning the hub or drum. Back off the nut until it is loose, then torque it to 7 ft. lbs. (10 Nm). Install the serrated nut cap and a new cotter pin. If the cotter pin holes have to be re-aligned, back off on the nut no more than 15 degrees; if not, repeat the adjustment procedure.
  10.  
  11. If equipped with drum brakes, install the brake drum to the hub assembly and adjust the brake shoes as required. If equipped with disc brakes, install the rotor and caliper.
  12.  
  13. Install the tire and wheel assembly and lower the vehicle. Pump the brake pedal to seat the brake pads against the rotors prior to moving the vehicle.
  14.  

1992-93

The rear hub bearing unit can not be disassembled. If the hub shows signs of wear or damage, replacement of the unit is required.

  1. Safely raise and support the rear of the vehicle. Remove the tire and wheel assembly.
  2.  
  3. If equipped with rear disc brakes, remove the brake caliper and support out of the way using wire. Do not disconnect the brake hose from the caliper. Remove the brake rotor. If equipped with drum brakes, remove the brake drum from the hub assembly.
  4.  
  5. Remove the grease cap, wheel bearing nut and washer from the center of the hub bearing unit. Remove the rear hub unit from the vehicle.
  6.  

To install:
  1. Install the rear bearing unit onto the spindle. Install the outer bearing and the tonged washer into the rear hub unit.
  2.  

Press the inner race further until the inner race contacts with the spindle end.

  1. Install and tighten the rear wheel bearing nut to 174-217 ft. lbs. (240-300 Nm).
  2.  
  3. Check for correct bearing end-play by placing a dial indicator on the hub surface and moving the hub outward. Note the movement of the gauge and compare to the desired reading of 0.004 in. or less (0.01mm or less). If end-play exceeds the desired reading, retighten the rear hub bearing nut and recheck end-play. If reading is still excessive, replace the hub unit.
  4.  
  5. If end-play is correct, check the starting torque by attaching a spring balance to the hub lug bolts and pulling at a 90 degree angle while noting the required force to turn the hub. If the torque required is above the desired reading of 7 lbs. or less (31 N or less), loosen the nut and again tighten to the desired torque. Recheck the starting torque. If torque is still above the desired reading, replace the rear hub bearing unit.
  6.  
  7. After final tightening the wheel bearing nut, align with the spindle's indentation and crimp the edge of the nut to wedge in position.
  8.  
  9. If equipped with rear disc brakes, install the brake disc and caliper to the vehicle. If equipped with drum brakes, install drum to hub assembly.
  10.  
  11. Install the tire and wheel assembly and lower the vehicle. Pump the brake pedal to assure correct brake operation, prior to moving the vehicle.
  12.  

ADJUSTMENT



Excel
  1. Raise the vehicle and support it safely. Remove the rear wheel assembly.
  2.  
  3. Remove the dust cover from the hub.
  4.  
  5. On 1986-90 vehicles equipped with castellated nut and cotter pin, remove the cotter pin and nut cap. Torque the bearing nut to 15 ft. lbs. (20 Nm) while turning the drum. Back off the nut until it is loose, then torque it to 48 inch lbs. Install the serrated nut cap and a new cotter pin. If the cotter pin holes have to be re-aligned, back off on the nut no more than 15 degrees; if not, repeat the adjustment procedure.
  6.  
  7. On 1991-93 vehicles equipped with bearing locknut, adjust bearing locknut as follows:
    1. Loosen the nut and then torque the nut to 108-145 ft. lbs. (147-196 Nm).
    2.  
    3. Check for correct bearing end-play by placing a dial indicator on the hub surface and moving the drum outward. Note the movement of the gauge and compare to the desired reading of 0.0043 in. or less (0.11mm or less). If end-play exceeds the desired reading, retighten the rear hub bearing nut and recheck end-play. If reading is still excessive, replace the hub unit.
    4.  
    5. If end-play is correct, check the starting torque by attaching a spring balance to the hub lug bolts and pulling at a 90 degree angle while noting the required force to turn the hub. If the torque required is above the desired reading of 4.9 lbs. or less (22 N or less), loosen the nut and again tighten to the desired torque. Recheck the starting torque. If torque is still above the desired reading, replace the rear bearings.
    6.  
    7. After final tightening the wheel bearing nut, align with the spindle's indentation and crimp the edge of the nut to wedge in position.
    8.  

  8.  
  9. Fill the dust cap with grease and install.
  10.  
  11. Install the tire and wheel assembly.
  12.  

Sonata
1989-91
  1. Safely raise and support the rear of the vehicle. Remove the tire and wheel assembly.
  2.  
  3. Remove the grease cap, cotter pin and serrated nut cap.
  4.  
  5. Torque the bearing nut to 14 ft. lbs. (20 Nm) while turning the hub or drum. Back off the nut until it is loose, then torque it to 7 ft. lbs. (10 Nm). Install the serrated nut cap and a new cotter pin. If the cotter pin holes have to be re-aligned, back off on the nut no more than 15 degrees; if not, repeat the adjustment procedure.
  6.  
  7. Install the nut lock and a new cotter pin.
  8.  
  9. Install the tire and wheel assembly and lower the vehicle. Pump the brake pedal to seat the brake pads against the rotors prior to moving the vehicle.
  10.  

1992-93
  1. Safely raise and support the rear of the vehicle. Remove the tire and wheel assembly.
  2.  
  3. If equipped with rear disc brakes, remove the brake caliper and support out of the way using wire. Do not disconnect the brake hose from the caliper. Remove the brake rotor. If equipped with drum brakes, remove the brake drum from the hub assembly.
  4.  
  5. Remove the grease cap and loosen the wheel bearing nut.
  6.  
  7. Tighten the rear wheel bearing nut to 174-217 ft. lbs. (240-300 Nm).
  8.  
  9. Check for correct bearing end-play by placing a dial indicator on the hub surface and moving the hub outward. Note the movement of the gauge and compare to the desired reading of 0.004 in. or less (0.01mm or less). If end-play exceeds the desired reading, retighten the rear hub bearing nut and recheck end-play. If reading is still excessive, replace the hub unit.
  10.  
  11. If end-play is correct, check the starting torque by attaching a spring balance to the hub lug bolts and pulling at a 90 degree angle while noting the required force to turn the hub. If the torque required is above the desired reading of 7 lbs. or less (31 N or less), loosen the nut and again tighten to the desired torque. Recheck the starting torque. If torque is still above the desired reading, replace the rear hub bearing unit.
  12.  
  13. After final tightening the wheel bearing nut, align with the spindle's indentation and crimp the edge of the nut to wedge in position.
  14.  
  15. If equipped with rear disc brakes, install the brake disc and caliper to the vehicle. If equipped with drum brakes, install drum to hub assembly.
  16.  
  17. Install the tire and wheel assembly and lower the vehicle. Pump the brake pedal to assure correct brake operation, prior to moving the vehicle.
  18.  

Elantra
  1. Safely raise and support the rear of the vehicle. Remove the tire and wheel assembly.
  2.  
  3. Remove the grease cap and loosen the axle shaft nut.
  4.  
  5. Tighten the nut to 108-145 ft. lbs. (150-200 Nm).
  6.  
  7. Check for correct bearing end play by placing a dial indicator on the hub surface and moving the hub outward. Note the movement of the gauge and compare to the desired reading of 0.008 in. or less (0.2mm or less). If end-play exceeds the desired reading, retighten the rear hub bearing nut and recheck end-play. If reading is still excessive, replace the hub unit.
  8.  
  9. If end-play is correct, check the starting torque by attaching a spring balance to the hub lug bolts and pulling at a 90 degree angle while noting the required force to turn the hub. If the torque required is above the desired reading of 4.9 lbs. or less (22 Nm or less), loosen the nut and again tighten to the desired torque. Recheck the starting torque. If torque is still above the desired reading, replace the rear bearings.
  10.  
  11. Install the tire and wheel assembly and lower the vehicle. Prior to moving the vehicle, pump the brakes until a firm pedal is obtained.
  12.  

Scoupe
  1. Safely raise and support the rear of the vehicle. Remove the tire and wheel assembly.
  2.  
  3. Remove the grease cap and loosen the axle shaft nut.
  4.  
  5. Tighten the nut to 108-145 ft. lbs. (150-200 Nm).
  6.  
  7. Check for correct bearing end-play by placing a dial indicator on the hub surface and moving the hub outward. Note the movement of the gauge and compare to the desired reading of 0.0043 in. or less (0.11mm or less). If end-play exceeds the desired reading, retighten the rear bearing nut and recheck end-play. If reading is still excessive, replace the rear bearings.
  8.  
  9. Once end-play is correct, check the hub and drum starting force by attaching a spring balance to the lug bolts and pulling at a 90 degree angle while noting the required force to turn the drum assembly. If the torque required is above the desired reading of 4.8 lbs. or less (22 Nm or less), loosen the nut and again tighten to the desired torque. Recheck the starting torque. If torque is still above the desired reading, replace the rear bearings.
  10.  
  11. After final tightening the wheel bearing nut, align with the spindle's indentation and crimp the edge of the nut to wedge in position.
  12.  
  13. Install the tire and wheel assembly and lower the vehicle. Prior to moving the vehicle, pump the brakes until a firm pedal is obtained.
  14.  

 
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