WHEEL AND TIRE DIAGNOSIS
TSB Revision
WHEEL AND TIRE
31-3
WHEEL BALANCE ACCURACY
M1311001700010
PURPOSE
This section contains tips and procedures for
achieving accurate wheel balance. Steering wheel
vibration and/or body shake can result if any of these
procedures are not carefully observed.
1. Wheels and tires must be properly mounted on a
balancer in order to achieve correct balance.
Centering the wheel on the shaft of the balancer is
essential for proper mounting.
2. Off-the-car wheel balancers must be calibrated
periodically to ensure good balancing results. An
inaccurately calibrated balancer could cause
unnecessary replacement of tires, shocks,
suspension components, or steering components.
Check your balancer's calibration approximately
every 100 balances. Your wheel balancer's
instruction manual should include calibration
procedures. If the calibration procedures specifically
for your balancer are missing, use the generic steps
in this section for zero calibration, static balance, and
dynamic balance checks. The wheel balancer
calibration checks are also described in the
flowchart. (Refer to
P.31-5
.)
PROCEDURE <Balancing Tips>
1. Confirm that the balancer's cone and the wheel
mounting cone are undamaged and free of dirt
and rust.
2. On this vehicle, the wheel's center hole on the
hub side has a chamfered edge. Use a back-
mounting cone on your wheel balancer to center
the wheel on the balancer shaft.
3. Install a wheel mounting cone. The appropriate
size cone for this vehicle is 67.0 mm (2.64
inches).
4. Before balancing the wheel, remove any wheel
weights from both sides. Also check both sides for
any damage.
5. When installing wheel weights, hammer them at a
straight (not diagonal) angle.
Feathered
edge
Incorrect toe-in
Adjust the toe-in.
Bald spots
Unbalanced
wheel
Balance the wheels.
−
Scalloped
wear
Lack of rotation of tires or worn
or out-of-alignment suspension
Rotate the tires,
check the front
suspension
alignment.
Refer to GROUP
33A, On-vehicle
Service
−
Front
Wheel Alignment
Check and
Adjustment
P.33A-
6
.
SYMPTOM
PROBABLE CAUSE
REMEDY
REFERENCE
PAGE
ACX00930AB
ACX00931 AB
ACX00932AB
ACX00933 AB
ACX00934