Wheel hub assembly

Call Kia with your VIN to make sure yours wasn't affected by the recall. You may be able to have that rear bearing replaced for free at Kia.

HUBCAP & OUTER BEARING REPLACEMENT PROCEDURE: 1. Remove the two (2) cross-tip locating screws on the brake drum.

2. Remove the brake drum.

3. Remove cotter pin and cover set.

4. Remove nut, claw washer, outer bearing and hub assembly.

5. Inspect inner bearing area in both hubs for any sign of moisture, corrosion, grease discoloration or contamination. If "yes" discard entire hub and replace with new assembly. If "no" proceed with outer bearing replacement below: 6. Carefully remove the outer bearing race from the hub. If the hub assembly is damaged then replace the hub assembly as a complete unit. (If inner seal is damaged while removing the outer race replace with new seal.)

7. Clean all contaminated grease from outer bearing cavity of the hub.

8. Install a new outer race into the hub using an appropriate race installation tool.

9. Apply grease MS511-33 WBG2 or equivalent to the hub assembly and the new bearing(s) especially to the shaded areas.

10. Install hub assembly, new pre-greased outer bearing and new claw washer on spindle. (Or alternatively, install entire new hub assembly, as supplied). Ensure bearings are properly seated then tighten hub/spindle nut, torque nut to 20-25 lb-ft (27-33 Nm.) Verify hub spins freely without signs of binding or excessive play.

11. Install new cover set and cotter pin; never reuse the old cotter pin.

12. Install new hub cap with Loctite # 5910(TM) or equivalent sealant to prevent moisture intrusion.

13. Install the rear brake drum using tapered locating screws.

14. Install rear wheels and torque lug nuts to proper specification. (65-79 lb-ft) (88-108 Nm, 9-11 kgm)

15. Lower vehicle.

Brake Rotor (Disc) - REMOVAL & INSTALLATION

1. Loosen the wheel lug nuts.
   
2. Jack up the front of the vehicle and support on jackstands.
   
3. Remove the wheel and tire.
   
4. Remove the brake caliper assembly as described earlier in this section, but do not disconnect the brake hose.
   
5. Suspend the caliper assembly by a piece of wire. Do not allow it to hang by the brake hose.
   
6. Follow the procedure given under wheel bearing removal in Suspension and Steering for models with manual and automatic locking hubs (lines down).

New rotor assemblies come protected with an anti-rust coating which should be removed with denatured alcohol or degreaser. New hubs must be packed with EP wheel bearing grease.

1. Installation is the reverse of the removal procedure.

Front Wheel Bearings - REMOVAL & INSTALLATION
(see Figure 1 )

Fig. 1: Inspect the bearings for abnormal wear and/or damage

With Manual Locking Hubs
(see Figures 2 through 17)

1. Raise the vehicle and install jackstands.
   
2. Remove the wheel and tire assembly.
   
3. Remove the retainer washers from the lug nut studs and remove the manual locking hub assembly from the spindle.
   
4. Remove the snapring and spacer from the end of the spindle shaft.
   
5. Remove the outer wheel bearing locknut from the spindle using 4 prong spindle nut spanner wrench, T86T-1197-A or equivalent. Make sure the tabs on the tool engage the slots in the locknut.
   
6. Remove the locknut washer from the spindle.
   
7. Remove the inner wheel bearing locknut from the spindle using 4 prong spindle nut spanner wrench, T86T-1197-A or equivalent. Make sure the tabs on the tool engage the slots in the locknut.
   
8. Remove the outer bearing cone and roller assembly from the hub. Remove the hub and rotor from the spindle.
   
9. Using seal removal tool 1175-AC or equivalent remove and discard the grease seal. Remove the inner bearing cone and roller assembly from the hub.
   
10. Clean the inner and outer bearing assemblies in solvent. Inspect the bearings and the cones for wear and damage. Replace defective parts, as required.
    
11. If the cups are worn or damaged, remove them with front hub remover tool T81P-1104-C and tool T77F-1102-A or equivalent.
    
12. Wipe the old grease from the spindle. Check the spindle for excessive wear or damage. Replace defective parts, as required.

Fig. 2: Before beginning the wheel bearing removal, and after the outer hub is removed, wipe off any excess grease

Fig. 3: After the grease is wiped off, remove the axle shaft snapring ...

Fig. 4: ... then pull the splined spacer from the axle shaft end

Fig. 5: Use a 4 pronged socket to loosen the outer wheel bearing locknut ...

Fig. 6: ... then remove the outer locknut

Fig. 7: Remove the lockwasher from behind the outer locknut ...

Fig. 8: ... then loosen and remove the inner locknut-note the lockwasher engagement pin (arrow)

Fig. 9: While pushing inwards on the rotor/hub assembly, remove the outer wheel bearing ...

Fig. 10: ... then pull the rotor/hub assembly from the spindle, taking care not to scratch the bearing cups in the hub

Fig. 11: Pry out the grease seal on the back of the rotor/hub assembly ...

Fig. 12: ... then remove the inner wheel bearing. Thoroughly clean and inspect all of the parts for wear or damage

continue...

Section 05-03C: Wheel Hubs and Bearings, Front Wheels, 4-Wheel Drive 1997 F-250/350/Super Duty Workshop Manual REMOVAL AND INSTALLATION Procedure revision date: 05/17/2000 Locking Hubs, Manual




Item Part Number Description 1 3A329 Halfshaft 2 3C132 Rolling Diaphragm Seal (Axle) 3 3299 Integral Spacer Needle Bearing Seal 4 3123 Bearing, Caged Needle 5 3105 Front Wheel Spindle 6 1190 Wheel Hub Grease Seal 7 4221 Inner Wheel Bearing (with Bearing Cup 4222) 8 1102 Front Disc Brake Hub and Rotor 9 4221 Outer Wheel Bearing (with Bearing Cup 4222) 10 - Pin (Part of 1195) 11 1195 Inner Lock Nut 12 1198 Lockwasher 13 1197 Outer Lock Nut 14 - Steel Thrust Washer
(Part of 3B458) 15 - Plastic Thrust Washer
(Part of 3B458) 16 - Splined Thrust Washer
(Part of 3B458) 17 3B457 Snap Ring 18 1K105 Hub Body 19 - Lock Ring (Part of 1K106) 20 1K104 Cap 21 1K104 Capscrew A - While Rotating Front Disc Brake Hub and Rotor, Tighten Inner Lock Nut to 68 Nm (50 Lb-Ft) to Seat Bearings. Back Nut Off 90 Degrees (1/4 Turn). B - Tighten to 217-278 Nm (160-205 Lb-Ft) C - Tighten to 4-6 Nm
(35-53 Lb-In) Removal

1. Separate cap assembly from hub body by removing the three Torx® head capscrews.
   
   
   
   
   
   
   
   
   

1. Remove the lock ring seated in the groove of the front disc brake hub and rotor (1102).
   
   
   
   
   

1. Remove the hub body assembly from the front disc brake hub and rotor. If the body is difficult to remove, install two capscrews and pull the body assembly out of the front disc brake hub and rotor.
   
   
   
   
   

Installation

1. NOTE: Do not pack the hublock body assembly or cap with grease. Excessive grease can cause excessive dialing effort and hub failure.
   
   Follow removal procedure in reverse order.
   

1. Tighten three Torx® head capscrews to 4-6 Nm (35-53 lb-in).
   

replace the bearing or wheel hub assembly.

REMOVAL & INSTALLATION 2wd Models NOTE: Refer to wheel bearing service and bearing preload adjustment procedures found in Section 1.

1. Raise the front of the truck and support it with safety stands. Remove the wheels.
2. Remove the brake caliper and suspend it with wire, out of the way. Remove the caliper torque plate if equipped.
3. Remove the dust cap and then remove the cotter pin, lock washer (if equipped) nut lock and nut.
4. Pull the hub/disc assembly off the spindle with the outer bearing. Don't let the bearing fall out.
5. Pry the inner oil seal out and remove the inner bearing. To install:
   
6. Clean and inspect the bearings and outer races.
7. Using a brass drift and a hammer, drive out the bearing outer race. Press a new one into position.
8. Pack the bearings with grease until it oozes out the other side. Coat the inside of the hub and cap with grease.
9. Position the inner bearing into the hub, coat the oil seal with grease and press it into the hub.
10. Press the hub assembly onto the spindle and install the outer bearing and thrust washer.
11. Install the hub nut. Turn the hub a few times to seat the bearings and then loosen the nut until there is 0mm axial play. Using a spring tension gauge, check that the preload (with new grease seal installed) is 2.2–6.4 lbs. (9.8–28.4N)
12. Install the lock-nut, new cotter pin and hub grease cap.
13. Install the brake torque plate. Install the brake caliper.
14. Install the wheels and lower the truck.

4wd Models The hub and bearing service procedures for a 4wd models are basically the same as those for a 2wd version, with the exception of removing the free running hub assembly and the bearing preload adjustment. Refer to Sections 1 and 7 for additional information. Adjust the preload after the wheel bearing is replaced or the front axle assembly is reassembled. BEARING PRELOAD ADJUSTMENT

1. Thoroughly clean all parts and pack the wheel bearings.
2. Apply grease to threaded portions of the spindle, grease seal lip and wheel hub.
3. Tighten the wheel bearing lock-nut with a socket and torque wrench to 58–72 ft. lbs. (78–98 Nm).
4. Rotate the hub in both directions a few times to seat the bearings. Loosen wheel bearing lock-nut.
5. Retighten the lock-nut to 0.4–1.1 ft. lbs. (0.5–1.5 Nm).
6. Turn wheel hub several times in both directions.
7. Retighten the lock-nut to 0.4–1.1 ft. lbs. (0.5–1.5 Nm). Fig. 1: Exploded view of the front axle assembly — 2wd models
   Fig. 2: Removing the bearing outer races
   Fig. 3: Packing the wheel bearing with grease
   Fig. 4: Pack the lip cavity of grease seal with grease
   Fig. 5: Exploded view of the front axle assembly — 4wd models
   
   
8. Measure wheel bearing axial end-play. The wheel bearing end-play specification is 0.
9. Install lock washer by tightening the lock-nut within 15–30 degrees.
10. Turn wheel hub several times in both directions. Wheel bearing should be seated correctly.
11. If necessary, measure wheel bearing preload. NOTE: Measure wheel bearing preload with a spring-type gauge; measure at wheel hub bolt, with tire removed. The hub assembly should rotate with 1.6–4.7 lbs. (0.73–2.13 kg) of pressure.
    

The Constant Velocity (CV) joints are located on the inner and outer edges of the axle shaft. The axle shaft runs through the hub and bearing in the spindle.

Sodium based grease is not compatible with lithium based grease. Do not lubricate the wheel bearings without first thoroughly cleaning all old grease from the bearing. Use of incompatible bearing lubricants could result in premature lubricant breakdown.

1. Raise and support the vehicle safely.
   
2. Remove the wheels.
   
3. Remove the brake drum or brake disc.
   
4. Remove the hub grease cap.
   
5. Remove the cotter pin retainer, adjusting nut and flatwasher from the rear wheel spindle. Discard the cotter pin.
   
6. Remove the outer bearing and cone assembly.
   
7. Remove the rear hub from rear wheel spindle.
   
8. Using Seal Remover (TOOL-1175-AC) or equivalent, remove and discard the oil seal.
   
9. Remove the inner bearing cone and roller assembly.
   
10. Clean the inner and outer bearing cups with solvent. Inspect the bearing cups for scratches, pits, excessive wear and other damage. If the bearing cups are worn or damaged, remove them using a Bearing Cup Puller (T77F-1102A) or equivalent.
    

To install:

1. Throughly clean old grease from the surrounding surfaces. If a new hub assembly is being installed, remove the protective coating using degreaser.
   
2. If the inner or outer bearing cups were removed, install replacement cups using Bearing Cup Replacer (T73-1202-A) or equivalent. Seat the cups properly in the hub.
   

If a bearing packer is not available, work as much grease as possible between the rollers and cages. Grease the cone surfaces.

1. Using a bearing packer, pack the bearing cone and roller assemblies with a premium bearing grease.
   
2. Place inner bearing cone and roller assembly in the inner cup. A light film of grease should be included between the lips of the new grease retainer.
   
3. Install the retainer with Hub Seal Replacer (T83T-1175-B) or equivalent. Be sure the retainer is properly seated.
   

Keep the hub centered on the spindle to prevent damage to the retainer and spindle threads.

1. Install the hub assembly on the spindle.
   
2. Install the outer bearing cone and roller assembly on the spindle.
   
3. Install the flat washer and nut. Tighten the nut to 18-23 ft. lbs. (24-31 Nm) while rotating the hub to set the end-play. Back off the nut and retighten to 18 inch lbs. (2 Nm).
   
4. Install the new cotter pin.
   
5. Install hub grease cap.
   
6. Install brake drum or disc.
   
7. Install the wheels.
   
8. Lower the vehicle.
   

1. Remove the steering knuckle assembly from the vehicle, and secure in a soft-jawed vise.
   
2. 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.
   
   
3. Remove the rotor shield.
   
4. Remove the inner and outer seals.
   
5. Remove the snapring from the steering knuckle.
   
6. Press the inner bearing race to remove the outer bearing.
   
7. If equipped with ABS, remove the tone ring.
   
8. Press the wheel lugs from the hub.
   
   NOTE To prevent deforming the hub, do not hammer the lugs out.
   
   

To install:

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

Front axle and bearing assembly—Sedan, Coupe, Loyale, XT, Wagon and Brat


Driving out the inner bearing assembly


Pressing the bearing in

its actually pretty easy if you have the basic tools needed and a little mechanical knowledge, because i dont think you can buy just the bearing at a auto parts store. they sell you the whole hub assembly which is great for the DIYer.

lift the car off the ground and block it from rolling and place a jack stand under it so it cant fall on anyone.


Wheel Bearings

• REMOVAL & INSTALLATION

Removal & Installation

These vehicles are equipped with sealed hub and bearing assemblies. The hub and bearing assemblies are non-serviceable. If the assembly is damaged, the complete unit must be replaced.

1. Before servicing the vehicle, refer to the precautions section.
2. Remove or disconnect the following:
   WARNING DO NOT allow the caliper to hang unsupported from the brake hose.
   
   
   Front wheel Halfshaft nut and washer Caliper from the steering knuckle and support it aside
   
   
   Brake rotor Anti-lock Brake System (ABS) connector, if equipped 3 hub/bearing assembly bolts Halfshaft from the hub/bearing assembly Hub/bearing assembly
   
   Fig. Exploded view of the front hub/bearing assembly
   
   

To install:
Install or connect the following:

Hub/bearing assembly onto the halfshaft, making sure the splines engage smoothly Hub/bearing assembly to the steering knuckle. Torque the bolts to 70 ft. lbs. (95 Nm). Anti-lock Brake System (ABS) connector, if equipped Brake rotor Caliper onto the steering knuckle. Torque the bolts to 38 ft. lbs. (51 Nm). Halfshaft nut. Torque the hub nut to 284 ft. lbs. (385 Nm) on nuts colored black, or 173 ft. lbs. (235 Nm) on gray colored nuts. Front wheel. Torque the nuts to 100 ft. lbs. (140 Nm).

NOTE: After the wheel bearings have been removed or replaced or the front axle has been reassembled be sure to adjust wheel bearing preload. Refer to the Adjustment service procedure below. On the 1989–92 240SX there is just one wheel bearing, pressed into the hub and no adjusting cap. Refer to the exploded views of the Front Axle Hub Assembly. Review the complete service procedure.

1. Raise and support the vehicle safely.
2. Remove the front wheels and the brake caliper assemblies. NOTE: Brake hoses do not need to be disconnected from the brake caliper assemblies. Make sure the brake hoses are secure and do not let caliper assemblies hang unsupported from the vehicle.
   
3. Work off center hub cap by using thin tool. If necessary tap around it with a soft hammer while removing.
4. Pry off cotter pin and take out adjusting cap and wheel bearing lock nut.
5. Remove wheel hub with disc brake rotor from spindle with bearings installed. Remove the outer bearing from the hub.
6. Remove inner bearing and grease seal from hub using long brass drift pin or equivalent.
7. If it is necessary to replace the bearing outer races, drive them out of the hub with a brass drift pin and mallet.
8. Install the outer bearing race with a tool (KV401021S0 special tool number) until it seats in the hub flush. NOTE: Place a large glob of grease into the palm of one hand and push the bearing through it with a sliding motion. The grease must be forced through the side of the bearing and in between each roller. Continue until the grease begins to ooze out the other side through the gaps between the rollers. The bearing must be completely packed with grease.
   
9. Pack each wheel bearing with high temperature wheel bearing grease. Pack hub and hub cap with the recommended wheel bearing grease up to shaded portions. Refer to the illustration.
10. Install the inner bearing and grease seal in the proper position in the hub.
11. Install the wheel hub with disc brake rotor to the spindle.
12. Install the outer wheel bearing, lock washer, wheel bearing lock nut, adjusting cap, cotter pin (always use a new cotter pin and O-ring for installation after adjustment), spread cotter pin then install the O-ring and dust cap.
13. Install the brake caliper assemblies and bleed brakes if necessary. Install the front wheels.

Here's the steps....getting some pics for you....hang on a minute or two.

Front Hub Removal & Installation To Remove:

1. Remove steering knuckle.
2. Using a suitable slap hammer, remove wheel hub assembly.
3. Using a suitable bearing press, remove outer bearing, oil seal, outer bearing race and preload spacer.
4. Remove inner oil seal, inner wheel bearing and inner bearing race.

NOTE: It is not necessary to remove dust cover (back plate).
To Install:

1. Using a suitable bearing press, install bearing races in steering knuckle.
2. Pack the bearings and hub area with lithium grease.
3. Install inner bearing in steering knuckle.
4. Lubricate lip of NEW inner seal and press seal into knuckle.
5. Install preload spacer into bore.
6. Install outer bearing into bore.
7. Lubricate lip of NEW outer seal and press seal into knuckle.
8. Using an appropriate tool, support inner wheel bearing and press wheel hub into knuckle with a force of 2500kg.
9. Install NEW inner seal.
10. Install knuckle assembly.