Chrysler PT Cruiser 2001 Service Manual Supplement page 1404

PT
DIAGNOSIS AND TESTING (Continued)
Fig. 10 Checking Wheel Lateral Run Out
1 – MOUNTING CONE
2 – SPINDLE SHAFT
3 – WING NUT
4 – PLASTIC CUP
5 – DIAL INDICATOR
6 – WHEEL
7 – DIAL INDICATOR
If the point of greatest wheel radial runout is near
the original chalk mark, remount the tire on the rim
180 degrees from its original position. Recheck the
runout. If this does not reduce the runout to an
acceptable level, replace the wheel or the tire.
SERVICE PROCEDURES
TIRE AND WHEEL BALANCE
Balancing need is indicated by vibration of seats,
floor pan, or steering wheel. The vibration will be
noticed mostly when driving over 90 km/h (55 mph)
on a smooth road.
It is recommended that a two plane dynamic bal-
ancer be used when a wheel and tire assembly
require balancing. Static balancing should be used
only when a two plane balancer is not available.
TIRES AND WHEELS
The cast aluminum wheels on this vehicle require
special balance weights to fit the contour of the
wheel flange (Fig. 11).
Fig. 11 Aluminum Wheel Weight
1 – TIRE
2 – WHEEL
3 – STYLED WHEEL WEIGHT
Off-vehicle tire and wheel balancing is recom-
mended to be used on this vehicle.
NOTE: If on-vehicle equipment is being used to bal-
ance a tire and wheel assembly on the driving axle,
remove the opposite tire and wheel from the vehi-
cle.
For static balancing, find the location of heavy spot
on tire/wheel causing the imbalance. Counter balance
wheel directly opposite the heavy spot. Determine
weight required to counterbalance the area of imbal-
ance. Place half of this weight on the inner rim
flange and the other half on the outer rim flange
(Fig. 12).
For dynamic balancing, the balancing equipment is
designed to indicate the location and amount of
weight to be applied to both the inner and outer rim
flanges (Fig. 13)
22 - 13