Diesel Data: Automotive Repair

Wheel and Tire System Inspection



GENERAL INSPECTION
1. Inspect tires.
a. Check the tires for wear and for the proper inflation pressure.

Cold Tire Inflation Pressure (P205/65R15 92H)
Normal Driving:
- For all loads including full rated loads: 180 kPa (26 psi).
- For reduced loads (1 to 4 passengers): 220 kPa (32 psi).




b. Check the tire runout.
Max. allowed: 1.0 mm (0.039 inch) or less.




2. Rotating tires.
NOTE: See the image for where to rotate each tire.





3. Inspect wheel balance.
a. Check and adjust the Off-The-Car balance.
b. If necessary, check and adjust the On-The-Car balance.

Unbalance After Adjustment: 8.0 g (0.018 lb) or less





4. Check wheel bearing looseness.
a. Check the backlash in the bearing shaft direction.
Max. allowed: 0.05 mm (0.0020 inch)

b. Check the axle hub deviation.
Max. allowed: 0.05 mm (0.0020 inch)

5. Check front suspension for looseness.
6. Check steering linkage for looseness.
7. Check ball joint for looseness.
8. Check shock absorber works properly.
- Check for oil leak
- Check mounting bushings for wear
- Bounce front and rear of the vehicle