FRONT HUB BEARINGS Replacement (Drum Brake Models)

1. Remove the swivel hub assembly from the car as previously detailed. 2. If the driving flange is still in position in the hub, the brake drum should be removed and the flange tapped out of the hub assembly from the inboard side, using a suitable mandrel. NOTE.- The distance ring fitted between the drivingflange and the outer bearing must be fitted with the chamfered side towards the driving flange. The brake shoes should also be removed to avoid the possibility of contamination by grease during the subsequent operations. 3. Extract the outer oil seal from the outboard end of the hub bore. Similarly, remove the inner oil seal together with its spacer ring from the opposite end of the bore. Discard the oil seals. Also remove the plastic water shield from the drive shaft. 4. Drift out the inner race of each bearing and remove the spacer ring fitted between the bearings. Drive out the bearing outer races from the hub bore, but take great care to avoid damaging the bore. 5. Clean all old grease, etc., from the hub bore. 6. Pack the new bearings with suitable High-melting point grease, then install them in the hub with the spacer ring between them. The bearings must be fitted with the sides marked 'THRUST' facing inwards towards each other. Tap the bearings squarely into position, bearing only on the outer race. 7. Lubricate the new oil seals before fitting them. The seals must be installed with the sealing lips facing inwards. Note that the inner seal also has a lip on its outer face. The seals can normally be installed by pressing them into position by hand, or by tapping gently on their outer edge. 8. Fit the water shield on the drive shaft so that it is positioned 1/4 in (6 mm) from the shouldered edge (see illustration). Fill the sealing face of the water shield with grease. 9. Assemble the swivel hub on the car as detailed previously. When refitting the driving flange, ensure that it locates correctly in the bearing spacer before tapping it fully into position. The distance ring must be positioned on the driving flange, with its chamfered side towards the flange, before installing. It should be noted that the brake backplate must be fitted before the driving flange is installed. 10. Once the car is lowered back onto its wheels, tighten the drive shaft nut to 60 lb ft (8.3 kg m) and secure with a new split-pin. Align the nut to the next split pin hole, if necessary. Front Hub Bearings - Disc Brake Models Replacement 1. Remove the swivel hub assembly from the car as detailed previously. This should include withdrawing the driving flange and brake disc assembly. 2. Extract the outer oil seal from the outboard end of the hub bore. Similarly, remove the inner oil seal, together with its spacer ring from the opposite end of the bore. Discard the oil seals. Also remove the plastic water shield from the drive shaft. 3. Remove the bearing inner races, together with the bearing spacer ring, from the hub bore. The inner bearing race may be left on the drive shaft when the swivel hub assembly is removed. Drive out the bearing outer races from the hub bore, but take great care to avoid damaging the bore. 4. Clean all old grease, etc., from the hub bore. 5. Tap the outer races of the new bearings into position in the hub bore, bearing only on their outer edge. Ensure that the races are correctly seated. Pack inner race and roller assemblies with high-melting point grease then install them in the hub with the spacer ring between them. 6. Lubricate the new oil seals before fitting them. The seals must be installed with the sealing lips facing inwards. Note that the inner seal also has a lip on its outer face. The seals can normally be installed by pressing them into position by hand, or by tapping gently on their outer edge. Pack the space between each seal and its adjacent bearing with grease, but do not fill the space between the bearings. 7. Fit the water shield on the drive shaft so that is is positioned 1/4 in (6 mm) from the shouldered edge (see illustration). Fill the sealing face of the water shield with grease. 8. Assemble the swivel hub on the car as detailed previously. When fitting the driving flange and brake disc assembly, ensure that the split tapered collar is correctly fitted under the drive shaft nut. 9. Once the car is lowered back onto its wheels, tighten the drive shaft nut to 150 lb ft (20.7 kg m) and secure with a new split-pin. Align the nut to the next split-pin hole, if necessary.