Checking Radial And Lateral Run-Out On Wheel Rim - Seat Leon 2013 Workshop Manual

2.5.2 Checking radial and lateral runout on
wheels and tyres with tyre gauge
Checking lateral runout
– Preload the tyre gauge by approx. 2 mm.
– Apply the micrometer dial to the side wall of the tyre.
– Turn the wheel slowly.
– Make a note of the smallest and largest deflection of the indi‐
cator needle.
Note
If the difference is over 1.3 mm, there is too much axial run-out.
In this case, the axial run-out can be reduced by applying the
Match balancing ⇒ page 318
Ignore the one-off peak measurements on the micrometer caused
by the elevation or depression of the material.
Checking radial runout
– Preload the tyre gauge by approx. 2 mm.
– Apply the micrometer dial to the running surface of the tyre.
– Turn the wheel slowly.
– Make a note of the smallest and largest deflection of the indi‐
cator needle.
Note
If the difference is over 1 mm, there is too much radial run-out.
In this case, the radial run-out can be reduced by applying Match
balancing ⇒ page 318 .
2.6 Checking radial and lateral run-out on
wheel rim
– Attach the disc wheel to the wheel balancing machine .
– Use the centring system for wheel balancing machines - VAS
5271- .
– Preload the tyre gauge by approx. 2 mm.
– Slowly rotate the wheel.
.
2. Rough running due to wheels/tyres - causes and rectification
León 2013 ➤ , León ST 2013 ➤
Running gear, axles, steering - Edition 06.2018
317