Wheel Hub: Service and Repair
Front Hub and Disc (2WD Model)
Disassembly
1. Raise the vehicle with a jack. Support the frame with chassis stand.
2. Remove the brake caliper from the bracket. Secure the caliper with a wire so that it does not interfere with the work process.
3. Remove the disk rotor.
Apply penetrating oil to the bearing and disc rotor contact surfaces if the surfaces are stuck together because of rust.
4. Inspect the hub unit bearing.
5. Use a dial gauge to measure the bearing axial rattle.
Bearing axial rattle: 0.05 mm max
If abnormal conditions are discovered during inspection, go to Step 6. If there are no abnormal conditions, reassemble the front disc rotor and caliper.
NOTE: Hub, wheel bearing and spindle is integrated to the hub unit bearing so it must not be disassembled. If it has abnormal rattle or noise, replace the hub unit bearing.
6. Remove the ABS sensor connector.
7. Remove the 4 bolts fixing the hub unit bearing to the knuckle.
Apply penetrating oil to the bearing and knuckle contact surfaces if the surfaces are stuck together because of rust.
8. Temporarily install long bolts to 2 of the fixing bolt holes (the bolts must have the same diameter and thread width).
9. Strike the long bolts with a hammer to loosen and remove the hub unit bearing from the knuckle.
Take care not to drop the bearing.
10. If necessary, replace the wheel pin in the following manner.
- Place hub on a suitable work surface and remove wheel studs, as required, using a hammer.
Inspection and Repair
Inspect the parts listed below for abrasion, breakage, and other abnormal conditions. Repair, or replace the parts as required.
- Disc
- Caliper
- Wheel pin
- Hub unit bearing
Reassembly
1. Install wheel pin.
- Place hub on a wood workbench or a block of wood approximately 6" by 6" to protect the wheel stud ends and threads.
- Install wheel stud, using a hammer.
Note: Be sure wheel stud is started squarely and seats completely.
2. Install the hub unit bearing to the knuckle.
Tighten the bolts to the specified torque.
Hub unit bearing bolt
Torque: 103 +/-10 Nm (10.5 +/-1 kg m)
If there is rust on the bearing and knuckle contact surfaces, use sandpaper to remove it before installation.
3. Install the AB sensor connector.
4. Install the disc rotor.
5. Install the brake caliper to the bracket.