Radial And Lateral Run-Out On Wheels/Tires, Checking With Tire Dial Gauge VAG 1435

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Checking lateral run-out:

-- Preload tire dial gauge approximately 2 mm.

-- Position dial gauge on tire side wall as shown in illustration.

-- Slowly rotate the wheel.

-- Note the smallest and the largest dial readings.

Fig 1: Checking Lateral Run-Out

Courtesy of AUDI OF AMERICA, LLC

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 MATCHING .

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

Checking Radial Run-Out:

-- Preload tire dial gauge approximately 2 mm.

-- Position dial gauge on tire running surface as shown in illustration.

-- Slowly rotate the wheel.

-- Note the smallest and the largest dial readings.

Fig 2: Checking Radial Run-Out

Courtesy of AUDI OF AMERICA, LLC

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 MATCHING .