Removal and installation rear wheel hub bearings (Opel Vectra A)

Removal

Loosen the rear wheel mounting bolts.

Raise the rear of the vehicle.

Remove the rear wheel.

Release the parking brake.



Disc brakes: remove the caliper and hang it on a wire. Do not disconnect, tighten or twist the brake hose.

Drum brakes: Remove the brake drum.

Remove the hub cap.

Attention! Be careful not to damage the cap. Replace damaged cap (water can penetrate through it and damage the bearing).

Remove the cotter pin and unscrew the hub nut.

Remove the hub from the axle. If necessary, turn the parking brake shoe adjusting screw.



Remove the seal from the hub using a large screwdriver.

[The source is on the online website www.OPELBOOK.ru]

Remove the inner tapered roller bearing from the hub.

Caution! If the bearing is to be reinstalled, it must be carefully protected from contamination when removed. Tapered roller bearings must not be washed (it is almost inevitable that foreign bodies that get in during washing cannot be removed from the bearing).

Knock out the outer races of the outer and inner bearings using a special Opel tool or a suitable drift. For disc brakes: use the KM-672 tool, placing the KM-266-1 part underneath. For drum brakes: use the KM-266-1, KM-266-2 or KM-266-3 tool, placing the KM-466-2 part underneath.

If the above mentioned devices are not available, knock out the collars with a copper drift. In doing so, apply the drift in a circle in different places of the collar to avoid distortion.

Caution! Use only a punch made of soft material that prevents scoring.

Wipe the brake drum and hub with a clean cloth soaked in alcohol. Check the integrity of the axle seats, replace the axle if necessary.

Installation

Insert the outer bearing races until they stop. In workshops, the KM-266-4 device and the KM-466-2 part are used for this purpose (for lining). If these devices are not available, a suitable bushing can be used, but care must be taken.



Fill the tapered roller bearing with lithium grease (e.g. Opel ET N1941574 (900001812).

Insert the inner bearing into the hub.

Fill the space between the edges of the seal with grease and press the seal into the hub. If there is no press, install the seal into the hub using a suitable mandrel.

Caution! Be sure to replace the seal. If the seal is damaged or poorly installed, water may enter the bearing and cause its destruction.

Fill the hub cavity with grease.

Place the hub together with the bearing filled with grease on the journal.

Place the washer and tighten the nut by hand.

Adjust the bearing clearance.

Secure the hub cap.

For disc brakes: install the caliper and tighten its bolts to a torque of 80 Nm.



For drum brakes: tighten the drum to the hub with a torque of 4 Nm.

Check the operation of the parking brake and adjust if necessary.

Lower the car.

Tighten the wheel mounting bolts crosswise to 110 Nm.