Acura 1986 to 1993 Front Wheel Hub,Knuckle and Bearings Replacement?

The procedure is for Acura  integra,Legend and Vigor 1986 to 1993 car models.


Front Wheel Hub,Knuckle and Bearings
REMOVAL & INSTALLATION

The details are as follows :----

The following procedures for hub and wheel bearing removal and installation necessitate the use of many special tools and a hydraulic press. Do not attempt this procedure without these special tools.

1986-89 Integra

1. Pry the lock tab away from the spindle and loosen the nut. Slightly loosen the lug nuts.
2. Raise and safely support the vehicle. Remove the front wheel and spindle nut.

3. Remove the brake caliper bolts and the caliper from the knuckle. Do not allow the caliper to hang by the brake hose, support it with a length of wire.
4. Remove the disc brake rotor retaining screws, if equipped. Screw two 8 × 1.25 12mm bolts into the disc brake removal holes and turn the bolts to press the rotor from the hub.

Only turn each bolt 2 turns at a time to prevent cocking the disc excessively.

5. Remove the tie rod from the knuckle using a tie rod end removal tool. Use care not to damage the ball joint seals or threads.
6. Use a floor jack to support the lower control arm, then remove the cotter pin and the castle nut from the lower arm ball joint.

Be sure to place the jack securely beneath the lower control arm at the ball joint. Otherwise, the tension from the torsion bar may cause the arm to suddenly jump away from the steering knuckle as the ball joint is removed.

7. Remove the lower arm from the knuckle using the ball joint removal tool.
8. Loosen the pinch bolt which retains the shock in the knuckle. Tap the top of the knuckle with a hammer and slide it off the shock.
9. Remove the knuckle and hub, if still attached, by sliding the assembly off of the halfshaft.
10. Remove the hub from the knuckle, hydraulic press and the proper rams.
11. Remove the splash guard and the snapring.
12. Press the bearing outer race out of the knuckle using a hydraulic press and the proper rams.
13. Remove the outboard bearing inner race from the hub using a bearing puller.

Whenever the wheel bearings are removed, always replace them with a new set of bearings and an outer dust seal.

14. Clean all old grease from the halfshaft and spindles on the vehicle.
15. Remove the old grease from the hub and knuckle and thoroughly dry and wipe clean all components.

To install:

16. When installing a new bearing into the knuckle, be sure to press only on the outer race or the bearing will be destroyed. Properly support the knuckle.
17. Install the snapring and the splash guard.
18. Support the hub properly and press on the inner race of the bearing to install the knuckle onto the hub. Do not press on the outer race or on the knuckle or the bearing will be destroyed.
19. The remaining installation is the reverse of the removal procedure. Torque the ball joint and tie rod end nuts to 29 ft. lbs. (40 Nm) and install new cotter pins. Torque the pinch bolt to 47 ft. lbs. (65 Nm).
20. With the vehicle on its wheels, torque the spindle nut to 134 ft. lbs. (185 Nm). Use a new spindle nut and stake it after torquing.

CAUTION

Spindle nut torque is very high. Tighten or loosen the spindle nut only with the vehicle on the ground. Attempting to loosen or torque the spindle nut while the vehicle is on jack stands or a lift may cause the vehicle to fall.

1990-93 Integra

See Figure 1

1. Pry the lock tab away and loosen the spindle nut. Slightly loosen the lug nuts.
2. Raise and safely support the vehicle. Remove the front wheel and spindle nut.
3. Remove the brake caliper bolts and the caliper from the knuckle. Do not allow the caliper to hang by the brake hose, support it with a length of wire.
4. Remove the disc brake rotor retaining screws, if equipped. Screw two 8 × 1.0 12mm bolts into the disc brake removal holes and turn the bolts to press the rotor from the hub.

Only turn each bolt 2 turns at a time to prevent cocking the disc excessively.

5. Remove the cotter pin from the tie rod end and remove the castle nut. Break loose the tie rod ball joint using a suitable ball joint removal tool and lift the tie rod out the steering knuckle.

Fig. Fig. 1: Exploded view of the front wheel bearing and hub assembly-1990-93 Integra

6. Remove the cotter pin and loosen the lower arm ball joint nut half the length of the joint threads. Separate the ball joint and lower arm using a puller with the pawls applied to the lower arm. Avoid damaging the ball joint thread. If necessary, apply a suitable penetrating type lubricant to loosen the ball joint.
7. Remove the knuckle protector. Remove the cotter pin and remove the upper ball pin nut. Separate the upper ball joint and the knuckle using a suitable ball joint removal tool.
8. Remove the steering knuckle and hub by sliding them off of the halfshaft.
9. Remove the splash guard screws from the knuckle. Separate the hub from the knuckle using a suitable hydraulic press. Be careful not to distort the splash guard. Hold onto the hub to keep it from falling when pressed clear. To prevent damage to the tool make sure the threads are fully engaged before pressing.

Always replace the bearing with a new one after removal.

10. Remove the snapring and knuckle ring from the knuckle. Press the wheel bearing out of the knuckle using suitable press tools and a hydraulic press.
11. Remove the outboard bearing inner race from the hub by using a suitable bearing puller.

To install:

12. Remove the old grease from the hub and knuckle and thoroughly dry and wipe clean all components. When pressing a new bearing into the hub, be sure to press only on the outer race or the bearing will be destroyed. Install the snapring securely in the knuckle groove.
13. Install the splash guard and tighten the screws.
14. Support the hub properly and press on the inner race of the bearing to install the knuckle onto the hub. Do not press on the outer race or on the knuckle or the bearing will be destroyed. Install the front knuckle ring.
15. The remaining installation is the reverse of the removal procedure. Torque the upper ball joint and tie rod end nuts to 32 ft. lbs. (44 Nm). Torque the lower ball joint nut to 40 ft. lbs. (55 Nm). Install new cotter pins.
16. With the vehicle on its wheels, torque the spindle nut to 134 ft. lbs. (185 Nm). Use a new spindle nut and stake it after torquing.

Legend

See Figures 2 and 3

1. Pry the lock tab away from the spindle and loosen the 36mm nut. Slightly loosen the lug nuts.
2. Raise and safely support the vehicle. Remove the front wheel and spindle nut.
3. Remove the bolts retaining the brake caliper and the caliper from the knuckle. Do not allow the caliper to hang by the brake hose, support it with a length of wire.
4. Remove the disc brake rotor retaining screws if equipped. Screw both 8 × 1.25 × 12mm bolts into the disc brake removal holes and turn the bolts to press the rotor from the hub.

Only turn each bolt 2 turns at a time to prevent cocking the disc excessively.

Fig. Fig. 2: Exploded view of the front wheel bearing and hub assembly-1986-90 Legend

Fig. Fig. 3: Exploded view of the front wheel bearing and hub assembly-1991-93 Legend

5. Remove the tie rod from the knuckle using a tie rod end removal tool. Use care not to damage the ball joint seals.
6. Remove the cotter pin from the lower arm ball joint and the castle nut.
7. Remove the lower control arm from the knuckle using the ball joint removal tool.
8. Remove the cotter pin from the upper arm ball joint and the castle nut.
9. Remove the upper arm from the knuckle using the ball joint remover.
10. Remove the knuckle and hub by sliding the assembly off of the halfshaft.

Any time the hub is removed, the wheel bearing must be replaced with a new one.

11. On 1986-90 Legend, properly support the knuckle and press the hub out of the bearing.
12. On 1991-93 Legend, the hub can be removed with a slide hammer. Clamp the knuckle in a vise and secure the slide hammer to the wheel studs.
13. Remove the splash guard and snaprings.
14. Support the knuckle and press the bearing out towards the wheel side.
15. If the inner bearing race stayed on the hub, use a puller to remove it.

To install:

16. Clean all parts and examine for wear. A worn or damaged hub will cause premature bearing failure and should be replaced.
17. When pressing in a new bearing, install the inner snapring first and press the bearing in from the wheel side. Be sure to press only on the outer race or the bearing will be damaged.
18. Install the outer snapring and the splash guard.
19. Properly support the knuckle and press the hub into the bearing. Do not press on the wheel studs or they will press out of the hub. Be sure to support the knuckle by the inner race or the bearing will be damaged.
20. Install the knuckle in the reverse order of removal. Torque the lower ball joint nut to 54 ft. lbs. (75 Nm) and tighten as required to install a new cotter pin.
21. Torque the upper ball joint nut to 32 ft. lbs. (44 Nm) and tighten as required to install a new cotter pin. Torque the tie rod end to 36 ft. lbs. (50 Nm) and tighten as required to install a new cotter pin.
22. With the wheel installed and all 4 wheels on the ground, torque the spindle nut and stake it in place.
    
    
    1986-90 Legend-180 ft. lbs. (250 Nm)

    1991-93 Legend-242 ft. lbs. (335 Nm)

Vigor

See Figure 4

The front wheel bearing and hub can be removed as an assembly without removing the steering knuckle.

Fig. Fig. 4: Exploded view of the front wheel bearing and hub assembly-Vigor

1. Pry the lock tab away from the spindle and loosen the 36mm nut. Slightly loosen the lug nuts.
2. Raise and safely support the vehicle. Remove the front wheel and spindle nut.
3. Remove the bolts retaining the brake caliper and remove the caliper from the knuckle. Do not allow the caliper to hang by the brake hose, support it with a length of wire.
4. Remove the ABS speed sensor from the knuckle.
5. Remove the tie rod from the knuckle using a properly sized ball joint pressing tool. Use care not to damage the joint seals.
6. Remove the cotter pin from the lower arm ball joint and the castle nut. Remove the lower control arm from the knuckle using the ball joint pressing tool.
7. Remove the cotter pin from the upper arm ball joint and the castle nut. Remove the upper arm from the knuckle using the ball joint pressing tool.
8. Remove the knuckle and hub by sliding the assembly off of the halfshaft.
9. To remove the hub from the knuckle, remove the 4 self-locking bolts from the back of the knuckle. Remove the 4 bolts from the hub to remove the brake disc.

Any time the hub and bearing are separated, the wheel bearing must be replaced with a new one.

10. The bearing can be pressed off the hub with a hydraulic press. The inner race of the outer row will stay on the hub and can be removed with a bearing puller.

To install:

11. Clean all parts and examine for wear. A worn or damaged hub will cause premature bearing failure and should be replaced.
12. When pressing on a new bearing, be sure to press only on the inner race or the bearing will be damaged.
13. Install the brake disc and torque the bolts to 40 ft. lbs. (55 Nm). Do not over torque or the disc will warp.
14. Make sure the splash guard is installed on the knuckle. Install the hub assembly and torque the self-locking bolts to 33 ft. lbs. (45 Nm). Do not over torque or the hub will be distorted.
15. Install the knuckle in the reverse order of removal. Torque the lower ball joint nut to 40 ft. lbs. (54 Nm) and tighten as required to install a new cotter pin.
16. Torque the upper ball joint nut to 32 ft. lbs. (44 Nm) and tighten as required to install a new cotter pin. Torque the tie rod end to 36 ft. lbs. (50 Nm) and tighten as required to install a new cotter pin.
17. With the wheel installed and all 4 wheels on the ground, torque the spindle nut to 180 ft. lbs. (250 Nm) and stake it in place.

This details will help.

Thanks.

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Car repair guide?

http://technoanswers.blogspot.in/2012/03/car-repair-guide.html