SWIVEL HUB ASSEMBLY

Removal (Drum Brake Models) 1. With the car still on its wheels, remove the split pin and slacken the hub nut on the end of the drive shaft. Also slacken the road wheel nuts. 2. Jack up the front of the car and support on stands, then remove the road wheel. 3. If the driving flange is required to be removed from the drive shaft, release the brake shoe adjustment and withdraw the brake drum. Remove the hub nut together with its thrust washer, then pull the driving flange off the drive shaft splines, using a suitable hub puller. Note the distance ring fitted between the driving flange and the hub bearing - this ring must be fitted with the chamfered side towards the driving flange . 4. If required, the brake shoes can also be removed from the backing plate at this time. 5. Slacken the flexible brake hose at the brake backplate. The hose will be detached later. Ideally the brake hose should be sealed by clamping it with a proper brake hose clamp, otherwise the hose end must be plugged to minimise fluid loss. 6. Remove the ball pin nut and disconnect the track rod end from the steering arm, using a suitable joint separator tool. 7. Similarly, separate the upper and lower swivel joints from their respective suspension arms. 8. Press or lever down on the lower suspension arm and tie rod to disengage the lower swivel joint from the arm, then pull the swivel hub down to disengage the upper swivel joint. NOTE.- It will aid removal if the rebound rubber under the upper suspension arm is removed and a solid wedge of roughly the same thickness fitted in its place . However, this must be done at the outset, while the car is still standing on its wheels. 9. If the driving flange was removed previously, pull the swivel hub outwards to release it from the drive shaft. 10. If the driving flange is still in place in the hub, remove the hub nut and thrust washer and tap the end of the drive shaft to drive it inwards out of the flange and hub. This should be done with a soft-headed mallet to avoid damaging the drive shaft threads. 11. Disconnect the brake hose by rotating the backplate assembly to release the hose connection threads from the wheel cylinder. Plug or cap the hose end to prevent loss of fluid. The hose is reconnected in the same manner on reassembly. Installation The swivel hub is refitted in the reverse order of removing, with special attention to the following points: a) Ensure that the plastic water shield on the drive shaft is positioned 1/4 in (6 mm) from the shouldered edge of the shaft . b) Reconnect the brake hose to the backplate before fitting the hub assembly over the drive shaft. Rotate the backplate to screw the hose connection into the wheel cylinder union. Do not forget to fully tighten the hose connection once the swivel hub assembly has been fitted. c) If the driving flange was removed, ensure that it locates correctly in the spacer ring between the hub bearings before tapping it fully into position on the drive shaft splines. d) Tighten the swivel joint ball pin nuts to 38 lb ft (5.3 kgm) and the track rod ball pin nut to 22 lb ft (3.0 kgm). e) Adjust the brake shoes and bleed the hydraulic system as detailed in the BRAKES section. f) Once the car is lowered back into its wheels, tighten the drive shaft nut to 60 lb ft (8.3 kgm) and secure with a new split pin. Align the nut to the next split-pin hole, if necessary. Swivel Hub Assembly Removal (Disc Brake Models) 1. With the car still on its wheels, remove the split pin and slacken the hub nut on the end of the drive shaft. Also slacken the road wheel nuts. 2. Jack up the front of the car and support on stands, then remove the road wheel. 3. Remove the two securing bolts and detach the brake calliper from the swivel hub. Support the calliper from a suitable point on the suspension to avoid straining the brake hose. 4. Remove the hub nut together with its split tapered collar, then withdraw the driving flange and brake disc assembly from the drive shaft, using a suitable hub puller. 5. Remove the ball pin nut and disconnect the track rod end from the steering arm, using a suitable joint separator tool. 6. Similarly, separate the upper and lower swivel joints from their respective suspension arms. 7. Press or lever down on the lower suspension arm and tie rod to disengage the lower swivel joint from the arm, then pull the swivel hub down to disengage the upper swivel joint. It will facilitate removal if the rebound rubber under the upper suspension arm is removed and a solid wedge of roughly the same thickness fitted in its place . However, this must be done at the outset, while the car is still standing on its wheels. 8. Pull the swivel hub assembly outwards to release it from the drive shaft. Installation Installation is basically a reversal of the removal procedure, but special attention should be paid to the following points: a) Ensure that the plastic water shield on the drive shaft is located 1/4 in (6 mm) from the shouldered edge of the shaft . b) Tighten the swivel hub ball pin nuts to 38 lb ft (5.3 kgm) and the track rod ball pin nut to 22 lb ft (3-0 kgm). c) Once the car is lowered back onto its wheels, tighten the drive shaft nut to 150 lb ft (20.7 kgm) and secure with a new split-pin. Align the nut to the next split-pin hole, if necessary.