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How to measure wheel run-out
To measure the wheel run-out, it is necessary to use an accurate
dial indicator. The tire may be on or off the wheel. The wheel
should be installed to the wheel balancer of the like for proper
measurement.
Take measurements of both lateral run-out (1) and radial run-out (2)
at both inside and outside of the rim flange. With the dial indicator set
in place securely, turn the wheel one full revolution slowly and record
every reading of the indicator.
NOTE:
Total indicator reading ignore indicator "JUMP" due to
weld seams, paint runs, scratches, etc.
When the measured run-out exceeds the specification and cor-
rection by the balancer adjustment is impossible, replace the
wheel.If the reading is affected by welding, paint or scratch, it
should be
ignored.
Run-out limit
Radial run-out limit
2.0 mm (0.078 in.)
Wheel Bolts
All models use metric lug wheel bolts.
Metric lug bolt size
(1): M12 x 1.5
Matched Tires and Wheels
Tires and wheels are match-mounted at the assembly plant.
This means that the radially stiffest part of the tire, or "high spot",
is matched to the smallest radius or "low spot" of the wheel.
This is done to provide the smoothest possible ride.
The "high spot" of the tire is originally marked by paint dot (1) on
the outboard sidewall. This paint dot will eventually be washed off
the tire. The "low spot" of the wheel is originally marked by paint
dot (2) on the wheel rim-flange. Properly assembled, the wheel
rims' paint dot should be aligned with the tires' paint dot as shown
in left figure.
Whenever a tire is dismounted from its wheel, it should be
remounted so that the tire and wheel are matched. If the tire's
paint dot cannot be located, a line should be scribed on the tire
and wheel before dismounting to assure that it is remounted in
the same position.
WHEELS AND TIRES 3F-3
Lateral run-out limit
2.0 mm (0.078 in.)
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