Removal and installation the front wheel hub assembly (Opel Corsa C)

Attention: Wheel bearings are pressed into steering knuckles! Removal and installation of the bearing must be performed only using a hydraulic press and other special devices! If the master is sufficiently qualified, pipes of the appropriate diameter can be used instead of some devices. Never knock off the bearing using a heavy hammer and a metal rod (mandrel)! This may lead to distortion of the bearing and damage to the steering knuckle!

Attention: The removed bearing must be replaced with a new one without fail! Re-use of a previously installed bearing is not allowed!

1. Hub assemblies and wheel bearings do not require adjustments and routine maintenance. If signs of wheel bearing failure appear, replace the corresponding bearing. The main signs of bearing damage are characteristic noise when taking sharp turns, heavy wheel travel with the brake released. The elements of the hub assembly are shown in the accompanying illustration.





2. Remove the steering knuckle (see section 4).

3. Clamp the steering knuckle in a vice. Unscrew the 3 mounting bolts and remove the brake shield (see illustration 5.1). Note: Access to the mounting bolts is provided through the mounting holes in the hub.

4. Install the special tool Opel-KM-466-5 (see accompanying illustration) and, using a hydraulic press, press the hub off the wheel bearing. This will damage the wheel bearing and it must be replaced without fail.



5. Clamp the steering knuckle again in a vice and use special pliers to remove the wheel bearing retaining ring (see accompanying illustration).





6. Install the steering knuckle into the special device KM-500-2 (see accompanying illustration) and press the wheel bearing with a hydraulic press using the Opel-KM-248-1 device and the appropriate punch.



7. Before installing a new bearing, clean the working surfaces of the steering knuckle and lubricate with bearing grease.

8. Install the steering knuckle on the KM-466-2 tool and press in the new bearing using the KM-466-A device (see accompanying illustration).



9. Clamp the steering knuckle in a vice and insert the retaining ring. Make sure the ring fits into its groove.



10. Install the steering knuckle on the Opel-KM-500-3 tool and press the hub into the wheel bearing on a hydraulic press using the KM-466-5 device (see accompanying illustration).

Note: Use a wooden block as a lining.

11. Clamp the steering knuckle again in a vice, install and secure the brake shield. Install the steering knuckle in place (see Section 4).