Design of the front wheel hub assembly for Mirage and Diamante models
1 - Inner seal; 2 - Hub; 3 - Dust shield; 4 - Retaining ring; 5 - Wheel bearing; 6 - Outer seal; 7 - Steering knuckle
Design of the hub assembly of Galant models produced in 1994÷1998.
1 - Cotter pin; 2 - Hub nut; 3 - Wheel sensor (models with ABS); 4 - Brake caliper; 5 - Brake disc; 6 - Upper ball joint; 7 - Hub assembly
Diamante, Mirage and Galant models produced up to 1993 and since 1999.
Removal
1. The design of the front wheel hub assembly of the models under consideration is shown in the illustration.
2. Disconnect the negative cable from the battery.
Warning! If the car stereo system is equipped with a security code, make sure you have the correct combination to activate the audio system before disconnecting the battery!
3. Jack up the car and place it on supports. Remove the corresponding front wheel and loosen the hub nut.
4. On models equipped with ABS, remove the wheel sensor.
5. On models with active suspension (Active-ECS) disconnect the ride height sensor from the lower control arm.
6. Remove the brake caliper and brake pads. Tie the caliper to the suspension elements, trying not to allow the brake hose to be stretched.
7. Using a special puller, release the ball joint and steering rod end from the steering knuckle assembly.
8. Release the drive shaft from the hub.
9. Unbolt the lower end of the strut and remove the hub assembly with the steering knuckle from the vehicle.
10. Transfer the removed assembly to the workbench.
11. Using a small screwdriver with a blunt tip, remove the oil seal installed on the side of the steering knuckle facing the drive shaft from its seat.
12. Using a puller, separate the hub from the steering knuckle.
13. Using a puller, remove the inner race of the wheel bearing from the hub.
Caution! To avoid damaging the bearing, never knock the race out of the hub with a hammer! Make sure that the hub does not fall when removing the race.
14. Remove the retaining ring installed on the drive shaft side of the steering knuckle. Use a puller to release the bearing from the knuckle assembly.
15. Once the bearing has been removed, its outer race can be knocked out using a brass drift.
Installation
1. Pack the wheel bearing with multi-purpose grease. Apply a thin layer of the same grease to the bearing surfaces of the steering knuckle.
2. Press the bearing into the knuckle, then use a special tool to install the inner bearing race.
3. Using a suitable drift, drive the inner seal into its seat flush with the end surface of the knuckle.
4. Using a special device such as MB990998, seat the hub in the knuckle - the seating tool nut is tightened with a force of 200÷260 N·m. Rotate the hub to seat the bearing.
5. Clamp the knuckle in a vice with soft jaws and measure the hub turning torque using the MB990998 attachment and a torque wrench. The maximum permissible value is 1.8 N·m. Check the bearing for freedom of rotation.
6. Install the dial gauge so that its plunger rests against the machined end surface of the hub and determine the amount of axial clearance of the assembly. The maximum permissible value is 0.05 mm.
7. If, when the hub nut is tightened to the required force (200÷260 N·m), the axial play or turning moment exceeds their maximum permissible values, which means that there is a violation during the installation of the bearing or knuckle, repeat the assembly procedure.
8. Install the hub assembly with the knuckle to its standard place on the car. Insert the ball joint pin into the knuckle and tighten its new nut to the required force (72 N·m).
9. Thread the drive shaft into the hub.
10. Connect the rack and tighten its mounting bolts to the required torque (110÷130 Nm: for Mirage models and 90÷105 Nm: for Diamante models).
11. Place the tie rod end into the knuckle and tighten the tie rod end ball nut to the required torque (34 Nm: for Mirage models and 29 Nm: for Diamante models).
12. Install the brake disc and caliper.
13. On models with active suspension (Active-ECS) install the ride height sensor and tighten its mounting bolt to 20 Nm.
14. On models with ABS, reinstall the wheel sensor (see Chapter Brake system).
15. Install the washer, screw the new lock nut onto the drive shaft journal and tighten it to the required torque (200÷260 Nm).
16. Install the wheel and lower the car to the ground.
Galant models 1994÷1998.
Removal
Attention! The front wheel hub assembly on Galant models produced in 1994÷1998 cannot be disassembled or serviced!
1. The design of the hub assembly on Galant models produced in 1994–1998 is shown in the illustration.
2. Remove the cotter pin, loosen the hub nut and remove the washer.
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3. Jack up the car and place it on stands. Remove the corresponding front wheel.
4. On ABS equipped models, remove the wheel sensor.
5. Remove the caliper and brake pads. Remove the retainer and release the brake hose from the bracket on the steering knuckle assembly. Tie the caliper to the suspension components, making sure that the brake hose is not stretched.
6. Remove the brake disc from the hub assembly.
7. Release the upper ball joint from the steering knuckle and pull the latter assembly outward, releasing the drive shaft from it.
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8. From the rear of the steering knuckle, remove the four hub mounting bolts.
9. Remove the hub assembly with the wheel bearing - the hub cannot be repaired and must be replaced if it fails.
Installation
1. If the steering knuckle needs to be replaced, transfer the brake dust shield and hydraulic hose support bracket to the new assembly
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2. Install the hub onto the steering knuckle assembly and tighten its mounting bolts to the required torque (88 Nm).
3. Insert the upper ball joint into the knuckle and tighten the ball stud self-locking nut to the required torque (28 Nm).
4. Install the washer and tighten the hub nut to the required torque (200÷260 Nm).
5. Install the brake disc onto the hub assembly.
6. Install the anchor bracket and brake caliper.
7. On models with ABS, install a wheel sensor.
8. Install the wheel and lower the car to the ground.