Front Wheel Hub and Bearings — Removal and Installation (Opel Omega B2)

Please note: A torque wrench is required.

Removal

1. Apply the handbrake, then jack up the front of the car and place it on axle stands. Remove the front wheel.

2. Press the dust cap away from the hub, then install the wheel and lower the vehicle to the ground to loosen the hub nut.

3. Block the wheels, then use the socket and extension rod to loosen the hub nut about half a turn. Note that this will require considerable force.

4. Jack up the front of the car again and place it on axle stands. Remove the wheel.

5. Remove the brake caliper and brake disc (see Section 9).

6. Remove the hub nut and pull the hub out of the steering knuckle (see illustrations). If the inner bearing race remains on the steering knuckle, remove it with a universal bearing puller and remove the oil seal.

Installation

7. Bearings cannot be replaced separately from the hub. If they are worn out or the seal is leaking, the hub must be replaced. The new hub is equipped with a plastic sleeve that tightens the inner bearing rings during installation.

8. Install the hub and plastic bushing onto the steering knuckle, then carefully push the inner races into the steering knuckle using a suitable socket or metal pipe (see illustration). Remove the bushing.



9. Install the components in the reverse order of removal, paying attention to the following: (see illustration):

• a) Tighten all nuts and bolts to the torque specified in the Specifications.
• b) Use a new hub nut.
• c) Install the brake disc and caliper as described in Section 9.
• d) Install a new hub dust cap.