Radial And Lateral Runout Of Wheels And Tyres - Volkswagen Jetta 2005 Workshop Manual

Golf Variant 2007 ➤ , Jetta 2005 ➤
Running gear, axles, steering - Edition 07.2010
Note
The imbalance should always be less than 20 grams before you
change the balance weight.
– If necessary, remove the wheel bolts again.
– Rotate the wheel relative to the hub once more, turning it one
or two wheel bolt holes further.
– Tighten the wheel bolts using the method described above.
Note
Do not try to reduce the imbalance using balance weights until
the imbalance is less than 20 grams.
– Balance the wheels until the imbalance is less than 5 grams.
– Tighten wheel bolts to specified torque if you have not already
done so.
WARNING
Always tighten wheel bolts to specified torque using a torque
wrench!
12.7 Radial and lateral runout of wheels and
tyres
Radial and lateral runout occur when the wheel and tyre do not
run absolutely true.
For technical reasons, 100% true running is not possible.
Therefore, the manufacturers of these components allow a pre‐
cisely determined tolerance.
Mounting the tyre in an unfavourable position on the wheel can
cause the maximum allowed tolerance for wheel with tyre to be
exceeded.
The table shows the maximum permissible tolerances for a wheel
with mounted tyre.
Tolerances for radial and lateral runout of wheels with tyres
Wheel with tyre
Passenger cars
12.8 Checking radial and lateral runout on
wheels and tyres with tyre gauge -V.A.G
1435-
Checking lateral runout
– Preload tyre gauge about 2 mm.
286
Rep. gr.44 - Wheels, tyres, vehicle geometry
Radial runout (mm)
0.9
Lateral runout (mm)
1.1
(1.3 in vicinity of lettering)