- Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
in General Information.
- Closely inspect each tire for proper and even bead seating.
- If any of the tire beads were not properly or evenly seated, reseat
the tire bead, then proceed to step 4. Refer to
Tire Mounting and Dismounting
in Tires and Wheels.
- Wrap the circumference
of each tire with tape (1) in the center tread area.
Wrapping the tread with tape allows for a smooth and accurate reading
of radial runout to be obtained.
- Position the dial indicator on the taped portion of the tire tread
such that the dial indicator is perpendicular to the tire tread surface.
- Slowly rotate the tire and wheel assembly one complete revolution
in order to find the low spot.
- Set the dial indicator to zero at the low spot.
- Slowly rotate the tire and wheel assembly one more complete revolution
and measure the total amount of radial runout.
Specification
Maximum tire and wheel assembly radial runout - measured on-vehicle:
1.52 mm (0.060 in)
- Position the dial indicator
on a smooth portion of the tire sidewall, as close to the tread as possible,
such that the dial indicator is perpendicular to the tire sidewall surface.
- Slowly rotate the tire and wheel assembly one complete revolution
in order to find the low spot. Ignore any jumps or dips due to sidewall splices.
- Set the dial indicator to zero at the low spot.
- Slowly rotate the tire and wheel assembly one more complete revolution
and measure the total amount of lateral runout. Ignore any jumps or dips
due to sidewall splices and attain an average runout measurement.
Specification
Maximum tire and wheel assembly lateral runout - measured on-vehicle:
1.52 mm (0.060 in)
- Repeat steps 4 through 12 until all of the tire
and wheel assembly radial and lateral runout measurements have been taken.
- Lower the vehicle.