Rear wheel hub (2WD)
1. Measure the axial clearance of the hub
A) (Models with drum brakes) Remove the cap and brake drum from the rear wheel hub.
b) (Models with disc brakes) Remove the brake caliper and brake disc.
V) Install a dial gauge as shown in the figure and measure the hub end play by moving it back and forth.
Maximum allowable value - 0.05 mm
G) If the axial play of the rear wheel hub bearing exceeds the limit, loosen and re-tighten the rear wheel hub nut and recheck the bearing breakaway torque.
Tightening torque - 175±25 N.m
d) If the bearing breakaway torque cannot be adjusted, replace the bearing.
2. Measure the breakaway moment.
A) (Models with drum brakes) Remove the cap and brake drum from the rear wheel hub.
b) (Models with disc brakes) Remove the brake caliper and brake disc.
V) Using the special tool, measure the bearing preload.
Maximum bearing breakaway torque - 22 N.m
G) If the bearing breakout torque exceeds the maximum, loosen and retighten the rear wheel hub nut and recheck the bearing breakaway torque.
Tightening torque - 175 + 25 N.m
d) If the bearing breakaway torque cannot be adjusted, replace the bearing.
Checking the total clearance in the rear gearbox
If the vehicle vibrates or makes noise due to wheel drive imbalance, then measure the total clearance in the gearbox in the following order to see if the gearbox assembly needs to be removed.
1. Park the vehicle on a flat, level surface.
2. Move the CVT or automatic transmission selector to the neutral position ("N"). Tighten the parking brake lever (top position) and jack up the car.
3. Turn the cardan shaft clockwise by hand until it stops. Mark the relative position on the boot (stuffing box cover) main gear drive flange and gearbox housing.
4. Turn the cardan shaft counterclockwise until it stops. Measure the distance between the marked marks. If the gap exceeds the maximum allowable value, then remove the gearbox housing and adjust the gaps in the gear engagement.
Maximum allowable value - 6 mm
5. Check for oil leakage from the viscous coupling.
Checking the oil level in the rear gear housing
Make sure that the oil level in the gearbox housing is under the cut of the filler plug (see picture). If necessary, add oil to the gearbox housing.
Oil class according to API - GL-5
Recommended oil viscosity (temperature dependent) according to SAE:
- Above 10°C - SAE90
- Below 10°C - SAE80VI
- Plug tightening torque - 49+9 Nm
Replacing the gearbox housing oil seal
1. Disconnect the drive shaft from the gearbox.
2. Remove the oil seal from the gearbox housing.
3. Using the special tool, press the new oil seal into the gear housing until it stops.
4. Apply multipurpose grease to the seal lip and drive shaft contact surface.
5. Replace the drive shaft circlip with a new one, then install the shaft into the gearbox housing.