Cars up to 9/89 issue. and all "station wagon" models (not all-wheel drive)
1. Change the position of the wheel disk relative to the hub so that the balanced wheel can be installed in its original position.
2. Loosen the wheel nuts of the vehicle while it is parked on the ground.
3. Raise the car.
4. Remove the wheel.
5. Remove the hub cap using a screwdriver without damaging it.
6. Bend back the bent flange of the nut so that the nut can be rotated.
7. Unscrew the hub nut and replace it with a new one.
Attention! The hub nut on the left side of the car has a left-hand thread, to loosen it you need to turn it to the right (clockwise).
8. Screw the hub nut on by hand until it is snug. Then tighten the nut with a torque wrench to 25 Nm.
Caution! Rotate the brake drum when tightening the nut to avoid pinching the hub bearing.
9. Turn the hub several times to ensure the bearing is seated correctly.
10. Loosen the hub nut slightly until it can be turned by hand.
11. Adjustment method without a torque gauge: Lightly tighten the hub nut again while turning the hub. The brake drum should rotate easily, but there should be no noticeable lateral play. If there is play, check it with a dial indicator, see Section Checking the hub bearing.
12. In MAZDA workshops, the hub bearing is adjusted as follows. (In practice, with some experience, the adjustment described above is sufficient):
- If the hub bearing is loose, install a dynamometer at a right angle to one of the wheel bolts.
- Pull the dynamometer until the hub starts to turn. The force when the hub starts to turn depends on the seal. Remove and record the readings.
- Slowly tighten the hub nut while rotating the hub until the correct tension is achieved. Required value is 2.6 - 8.5 N. The previously measured value of the seal resistance should be added to it.
- When the bearing is adjusted correctly, the torque at which the hub begins to rotate is 0,15 — 0.49 Nm.
13. Hammer the flange of the hub nut into the groove of the journal with a not very sharp chisel. This serves to prevent the nut from loosening.
14. Score new hub cap using a pipe.
Attention! Deformed caps must be replaced, as due to leaks, moisture can get into the hub bearing and destroy it in a short time.
15. Screw on the wheel, taking into account the markings on the hub. Lower the car and tighten the wheel nuts crosswise with force 100 Nm.