Item | Description |
|---|---|
2 | Cone |
3 | Wheel and tire assembly |
4 | Finger plate |
5 | Balancer wing nut |
5. Measure the Road Force®.
Temporarily mark the high spot and the Road Force® value on the sidewall of the tire. If the wheel and tire assembly Road Force® value is greater than 9 kg (20 lb), carry out the Match Mounting procedure to optimize the wheel and tire assembly. If the wheel and tire assembly Road Force® value is 9 kg (20 lb) or less, permanently mark the high spot and the Road Force® value on the inward sidewall of the tire for reference during future wheel and tire service. Balance the assembly and install the wheel and tire on the vehicle using the Wheel-to-Hub Optimization procedure.
Radial Runout Measurement - Dial Indicator Method
NOTE: Diagnosis of tire/wheel vibration should not be performed on tires with less than 320 km (200 mi). Some initial tire/wheel vibration issues (such as flat spotting) will correct themselves after the tires have been in service for 320 km (200 mi).
NOTE: Loaded run-out measurements are the preferred method for verifying tire serviceability. While a dial indicator can be used to optimize the position of the tire on the wheel, the unloaded run-out measurement cannot accurately determine if the tire should be removed from service.
NOTE: The following procedures should be used if normal diagnostics leads to a potential runout issue.
NOTE: Some vehicles may exhibit a wheel and tire vibration caused by excessive runout. Radial runout measurements can be taken using a dial indicator and should be measured with the wheel and tire assembly mounted on a suitable wheel balancer. The dial indicator should be mounted securely to eliminate gauge movement when measuring runout.
NOTE: Use only a digital tire pressure gauge any time tire pressures are measured to be sure that accurate values are obtained.
1. Make sure that the tire pressures are set to the correct pressure as indicated on the VC label.
2. Using a tire crayon, record the vehicle position on the inward sidewall of all 4 tires.
3. Remove the wheel and tire assemblies. REFER to: Wheel and Tire (204-04A Wheels and Tires, Removal and Installation).
4. NOTICE: Make sure that the correct wheel balancer adapters are used when mounting the
assembly to the wheel balancer or damage to the wheel may occur.
NOTE: Make sure that the wheel and tire assembly is clean and free of foreign material prior to installation on the balancer.
NOTE: The wheel balancer inflation station must be turned OFF for tires with inflation pressures of
60.0 psi (414 kPa) or above.
Mount the wheel and tire assembly on a suitable wheel balancer using the correct wheel balancer adapters as shown.
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.