Rear Hub Bearing and Seal Service
REAR HUB BEARING AND REAR HUB OIL SEAL, RENEWFig.1 Sectional View Hub Assembly:
Removal
^ Disconnect vehicle battery ground lead.
^ Slacken appropriate axle shaft hub nut.
^ Support the vehicle at the rear and remove rear road wheel.
Note: To aid assembly, mark the position of the head of the hub carrier fulcrum, relative to the wishbone slot.
^ Disconnect handbrake cable inner and outer.
^ Remove brake caliper, but do not disconnect hydraulics.
^ Slacken hub carrier fulcrum and remove ABS sensor from hub carrier.
^ Remove axle shaft hub nut (and discard), collar and hub carrier fulcrum.
Fig.1:
^ Using service tools JD 1D/7 and JD 1D (Fig. 1), push shaft through hub and pull the hub carrier assembly clear.
Fig.2:
^ Using Hub tool JD 132 - 1 (1 Fig. 2) and a suitable press, align the hub assembly to the tool ensuring the hand brake expander locates into the tool cut out.
^ Locate button JD 132 - 2 and press the hub from the carrier.
^ Remove the outer bearing race and seal from either the hub or the carrier and place the ABS rotor to one side.
^ Remove from the carrier; bearing spacer, adjustable spacer, inner race and seal.
Renew Bearings / Seal(s)
^ Using a suitable drift remove the inner and outer bearing cups.
^ Clean all components paying particular attention to the removal of all traces of locking compound from the hub AND axle shaft splines.
^ Using service tools JD 550-4/2, 4/1 and 18G 134, fit new cups to the hub carrier ensuring that they are 'square' and fully seated.
^ Fit the new outer bearing race to the hub.
Note: Do not fit seals or 'pack' bearing at this point.
^ Assemble the hub and race to the carrier along with bearing spacer (noting orientation) and the largest available adjustable spacer, i.e. 3.47 mm.
^ Fit the new inner bearing and ABS rotor to the hub.
^ Apply a compressive load to the hub/bearing assembly, using a press, vice or long bolt. Ensure that the force that the axle shaft fixing would normally provide is not exceeded.
^ Measure the hub end-float, using service tool JD 13B dial test indicator (DTI).
^ Using the indicated endfloat dimension, select a suitable adjustable spacer to give the specified pre-load.
Note: See Specifications / Service Data for pre-load specification and typical example.
^ Remove the outer bearing from the hub.
^ Lubricate the bearings as specified.
^ Locate the outer bearing to the hub carrier assembly.
^ Using service tools JD 550 - 4/2, 4/1 and 18G 134, fit new seal to the hub carrier ensuring that it is 'square' and fully seated.
^ Invert the assembly and locate the bearing spacer (noting orientation) and selected adjustable spacer over the hub.
^ Assemble the inner bearing race and locate the inner seal using service tools JD 550 - 4/2, 4/1 and 18G 134, ensuring that the seal is 'square' and fully seated.
^ Press the ABS rotor into position.
^ Assembly and fitting is the reversal of this procedure taking note of the following:
- Adhesive should be applied to axle shaft splines over a radial area of 30 to 50%.
- For the initial setting, position the head of the hub carrier fulcrum to the mark previously made on the wishbone prior to checking and adjusting (if required) rear wheel toe-in.
- Renew all bolts that were originally fitted with thread locking adhesive.
- Replace all locking wire and split pins (cotter pins).
- Tighten all fixings to the specified torque.
- Verify operation of brakes.
- Renew all self locking nuts.
Note: The axle shaft nut is a self-locking item with a thread insert and must NOT be re-used.