Early Mustang Front Wheel Bearing Service

Standard

Mustang Front Wheel Bearings

CLEANING, REPACKING, & ADJUSTING FRONT WHEEL BEARINGS

Drum Brakes – The procedure for cleaning, repacking, and adjusting front wheel bearings on vehicles equipped with self-adjusting drum brakes is as follows:

  1. Taking proper safety precautions, raise the car until the wheel and tire clear the
    floor.
  2. Remove the wheel cover. Remove the grease cap from the hub. Then remove the cotter pin, nut lock, adjusting nut, and flat washer from the spindle. Remove the outer bearing cone and roller assembly.
  3. Pull the wheel, hub, and drum assembly off the spindle. When encountering a brake drum that will not come off, disengage the adjusting lever from the adjusting screw by inserting a narrow screwdriver through the adjusting hole in the carrier plate. While the lever is disengaged, back off the adjusting screw star wheel with a brake adjusting tool. The self-adjusting mechanism will not function properly if the adjusting screw is burred, chipped, or otherwise damaged in the process, so be careful.
  4. Remove the grease retainer, inner bearing cone, and roller assembly from the hub.
  5. Clean all grease off the inner and outer bearing cups with solvent. Inspect the cups for pits, scratches, or excessive wear. If the cups are damaged, remove them with a drift.
  6. Clean the inner and outer cone and roller assemblies with solvent and shake them dry. If the cone and roller assemblies show excessive wear or damage, replace them with the bearing cups as a unit.
  7. If the new grease retainer is leather, soak it in light engine oil for 30 minutes, prior
    to installation. Wipe any excess from the metal portion of the retainer. Clean the spindle and the inside of the hub with solvent to thoroughly remove all old grease.
  8. Covering the spindle with a clean cloth, brush all loose dirt and dust from the brake
    assembly. Remove the cloth carefully to keep dirt from the spindle.
  9. If the inner and/or outer bearing cups were removed, install the replacement cups on the hub. Be sure that the cups seat properly in the hub.
  10. It is imperative that all old grease be removed from the bearings and surrounding
    surfaces before repacking. The new lithium-base grease is not compatible with the sodium-base grease used in the past.
  11. Pack the inside of the hub with wheel bearing grease. Add grease to the hub until it is
    flush with the inside diameter of both bearing cups. Work as much grease as possible between the rollers and cages in the cone and roller assemblies. Lubricate the cone surfaces with grease.
  12. Position the inner bearing cone and roller assembly in the inner cup. If the leather
    grease retainer has soaked for 30 minutes, wipe all excess from the metal portion of the retainer and install it. Other types of grease retainers require a light film of grease on the lips before installation. Make sure that the retainer is properly seated.
  13. Install the wheel, hub, and drum assembly on the wheel spindle. To prevent damage to the grease retainer and spindle threads, keep the hub centered on the spindle.
  14. Install the outer bearing cone, roller assembly, and flat washer on the spindle. Install
    the adjusting nut.
  15. Adjust the wheel bearings by tightening the adjusting nut to 17-25 ft. lbs. with the
    wheel rotating. Then back off the adjusting nut 1/2 turn. Retighten the adjusting nut to
    10-15 ft. lbs. Install the locknut so that the castellations are aligned with the cotter pin
    hole. Install the cotter pin. Bend the ends of the cotter pin around the castellations of the locknut to prevent interference with the radio static collector in the grease cap. Install the grease cap.
  16. Remove the adjusting hole cover from the carrier plate. From the carrier plate side, turn the adjusting screw star wheel upward with a brake adjusting tool. Expand the brake shoes until a slight drag is felt with the drum rotating. Replace the adjusting hole cover.
  17. Install the wheel cover.

Disc Brakes – The procedure for cleaning, repacking, and adjusting front wheel bearings on vehicles equipped with disc brakes is as follows:

  1. Taking proper safety precautions, raise the car until the wheel and tire clear the
    floor.
  2. Remove the wheel cover. Remove the wheel and tire from the hub.
  3. On vehicles equipped with four-piston fixed-caliper brakes, remove the two bolts
    attaching the caliper to the spindle. Remove the caliper to the spindle. Remove the caliper from the rotor and wire it to the underbody to prevent damage to the brake hose. On cars with floating-caliper brakes follow steps two and three under Caliper Assembly Overhaul.
  4. Remove the grease cap from the hub, and the cotter pin, nut lock, adjusting nut, and flat washer from the spindle. Remove the outer bearing cone and roller assembly.
  5. Pull the hub and rotor assembly off the wheel spindle.
  6. Remove and discard the old grease retainer. Remove the inner bearing cone and roller assembly from the hub.
  7. Clean all grease off the inner and outer bearing cups with solvent. Inspect for excessive wear or damage and remove with a drift if necessary.
  8. If the new grease retainer is leather, soak it in light engine oil for 30 minutes prior
    to installation. Wipe any excess from the metal portion of the retainer.
  9. Clean the inner and outer cone and roller assemblies with solvent and shake them dry. If the cone and roller assemblies show excessive wear or damage, replace them with the bearing cups as a unit.
  10. Clean the spindle and the inside of the hub with solvent to thoroughly remove all old
    grease. Covering the spindle with a clean cloth, brush all loose dirt and dust from the brake assembly. Remove the cloth carefully so as to not get dirt on the spindle.
  11. If the inner and/or outer bearing cups were removed, install the replacement cups on the hub. Be sure that the cups seat properly in the hub.
  12. It is imperative that all old grease be removed from the bearings and surrounding
    surfaces before repacking. Sodium-based grease is not compatible with the new lithium-based grease.
  13. Pack the inside of the hub with wheel bearing grease. Add grease to the hub until it is
    flush with the inside diameter of both bearing cups. Work as much grease as possible between the rollers and cages in the cone and roller assemblies. Lubricate the cone surfaces with grease.
  14. Position the inner bearing cone and roller assembly in the inner cup. If a leather grease retainer has soaked for 30 minutes, wipe all excess from the metal portion of the retainer and install. Other types of grease retainers require a light film of grease applied to the lips prior to installation. Make sure that the retainer is properly seated.
  15. Install the hub and rotor on the wheel spindle. To prevent damage to the grease retainer and spindle threads, keep the hub centered on the spindle.
  16. Install the outer bearing cone and roller assembly and the flat washer on the spindle.
    Install the adjusting nut.
  17. Adjust the wheel bearings by torqueing the adjusting nut to 17-25 ft. lbs. with the wheel
    rotating. Then back off the adjusting nut 1/2 turn. Retighten the adjusting nut to 10-15 ft. lbs. Install the locknut so that the castellations are aligned with the cotter pin hole.
    Install the cotter pin. Bend the ends of the cotter pin around the castellations of the
    locknut to prevent interference with the radio static collector in the grease cap. Install
    the grease cap.
  18. On vehicles equipped with four-piston fixed-caliper brakes, install the caliper to the
    spindle and torque attaching bolts to specifications. New bolts must be used when servicing. The upper bolt must be tightened first. On cars with floating-caliper brakes, follow steps 19, 20, and 21 under Caliper Assembly Overhaul.
  19. Install the wheel and tire on the hub.
  20. Install the wheel cover.

 

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