Hub installation
Signs of a damaged rear wheel bearing are extraneous noise that occurs when the speed reaches a certain value.
The rear wheel bearings consist of two high precision ball bearings. The bearing is located in the wheel hub, to which the brake drum and brake disc are attached. The bearing is installed in place using a special mandrel and a press. Therefore, it is advisable to remove the hub with the bearing to install the bearing and install a new bearing in a specialized workshop.
Examination
Loosen the wheel nuts while the vehicle is on the ground.
Mark the position of the wheel disk relative to the hub so that a balanced wheel can be installed in the same place.
Raise the rear of the car.
Remove rear wheel.
Turn the brake drum and brake disc by hand with the hand brake released. The bearing should rotate easily and smoothly.
Remove brake drum with brake disc.
In the conditions of a specialized workshop, the axial play in the wheel hub is measured using a dial indicator. The axial play must not exceed 0.05 mm. If there is more play, replace the bearing. With experience, the axial clearance can also be determined manually by moving the hub by hand in both directions.
Removing the hub
For drum brake only.
Disconnect the brake hose from the brake wheel cylinder.
Attention: Place a container to collect the escaping liquid. Comply with the rules for handling brake fluid.
Unscrew the 4 hub mounting bolts and remove the hub complete with the brake shoe support pin.
Remove the o-ring between the hub and the brake finger.
The bearing must be replaced by a specialist workshop.
Hub installation
Fit and bolt hub with brake shoe pin and new O-ring, tighten bolts to 80 Nm.
Brake drum. Attach the brake hose to the wheel brake cylinder with a torque of 15 Nm.
Install brake drum and disc with brake caliper.
With rear brake drums. Since the brake system was opened, bleed the system after assembly.
Install the wheel, observing the markings. Screw nuts. Lower the vehicle and tighten the nuts crosswise to 105 Nm.