Wheel And Tire Radial And Lateral Run-Out, Checking With Tire Dial Gauge

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Checking Lateral Run-Out

-- Load the tire dial gauge approximately 2 mm.

-- Set up tire dial gauge on the side wall of the tire.

Fig 1: Identifying Lateral Run-Out

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Slowly rotate the wheel.

-- Note the smallest and the largest dial readings.

NOTE:

If the difference is greater than 1.3 mm, the lateral run-out is too great.

In this case, lateral run-out can be reduced by matched mounting of the tire. Refer to MATCHED MOUNTING .

Peak values on the tire dial gauge due to small irregularities in the rubber may be disregarded.

Checking Radial Run-Out

-- Load the tire dial gauge approximately 2 mm.

-- Set up tire dial gauge on the tire tread.

Fig 2: Identifying Radial Run-Out

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Slowly rotate the wheel.

-- Note the smallest and the largest dial readings.

NOTE:

If the difference is greater than 1 mm, the radial run-out is too great.

In this case, radial run-out can be reduced by matched mounting of the tire. Refer to MATCHED MOUNTING .