Front Wheel Bearing — Replacement (Opel Vectra A)

Removal

1. Remove the appropriate strut/steering knuckle assembly as described in Chapter 4.

2. Unscrew the mounting screw and remove the brake disc from the hub.

3. Support the steering knuckle with two metal rods, installing them as shown (see illustration), then use a metal rod or tube of suitable diameter to push or tap the hub out of the wheel bearing. Alternatively, screw two wheel bolts into the hub and, using successively thicker shims, tighten the bolts to push the hub out of the bearing. Note that one half of the inner bearing track will remain on the hub.

3. Support the steering knuckle with two metal rods, installing them as shown (see illustration),…

4. Remove half of the bearing track from the hub using a puller. Alternatively, support the track with thin metal rods and push or tap the hub out of it (see illustration).

5. Unscrew the three mounting screws and remove the brake disc shield from the steering knuckle (see illustration).

6. Remove the inner and outer bearing retaining rings (see illustration).

7. Remove the bearing from the knuckle using a bearing puller by pressing on the outer track. Alternatively, support the knuckle and push or tap the bearing out.

Installation

8. Before installing the new bearing, thoroughly clean the area where it will be installed on the steering knuckle. Install the outer bearing retaining ring (see illustration). Please note that the retaining ring tabs must be bent towards the base of the steering knuckle.

9. Install the new bearing into place by pressing on its outer race until the bearing rests against the outer retaining ring (see illustration).

10. Install the inner bearing snap ring with the tabs facing the base of the steering knuckle.

11. Install the brake disc shield.

12. Install the hub into the bearing. During this operation, support the inner bearing race with a socket, long bolt, washer and suitable rod as shown in the illustration.