Mitsubishi Lancer Evolution IX. Manual — part 565

31-1

GROUP 31

WHEEL AND TYRE

CONTENTS

GENERAL INFORMATION . . . . . . . .

31-2

SERVICE SPECIFICATIONS. . . . . . .

31-2

TROUBLESHOOTING . . . . . . . . . . . .

31-3

DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . .

31-3

WHEEL BALANCE ACCURACY . . . . . . . .

31-4

ON-VEHICLE SERVICE . . . . . . . . . . .

31-7

TYRE INFLATION PRESSURE CHECK . . .

31-7

TYRE WEAR CHECK . . . . . . . . . . . . . . . . .

31-7

WHEEL RUNOUT CHECK . . . . . . . . . . . . .

31-7

WHEEL AND TYRE . . . . . . . . . . . . . .

31-7

INSTALLATION SERVICE POINT . . . . . . .

31-7

GENERAL INFORMATION

WHEEL AND TYRE

31-2

GENERAL INFORMATION

M1311000100134

The wheels and tyres of the following specifications
have been established.

SPECIFICATIONS

ROAD WHEEL AND TYRE

Item

Specification

Wheel

Type

Aluminium type

Size

17

× 8JJ

Amount of wheel offset mm

38

Pitch circle diameter (PCD) mm

114.3

Tyre

Size

235/45R17 93W

SPARE WHEEL AND TYRE

Item

Specification

Spare wheel

Type

Steel type

Size

17

× 4T

Amount of wheel offset mm

30

Pitch circle diameter (PCD) mm

114.3

Spare tyre

Size

T125/70D17 98M

NOTE: PCD indicates the pitch circle diameter of the wheel installation holes.

SERVICE SPECIFICATIONS

M1311000300473

Item

Limit

Tread depth of tyre mm

Minimum 1.6

Wheel runout (Radial runout) mm

1.0 or less

Wheel runout (Lateral runout) mm

1.0 or less

TROUBLESHOOTING

WHEEL AND TYRE

31-3

TROUBLESHOOTING

DIAGNOSIS

M1311000700523

Symptom

Probable cause

Remedy

Reference page

Rapid wear
at shoulders

ACX00923AB

Under-inflation
or lack of
rotation

ACX00924 AB

Adjust the tyre
pressure.

For tyre inflation
pressure, refer to
the label on the
driver's side centre
pillar.

Rapid wear
at centre

ACX00925AB

Over-inflation
or lack of
rotation

ACX00926AB

Cracked
treads

ACX00927AB

Under-inflation

Adjust the tyre
pressure.

For tyre inflation
pressure, refer to
the label on the
driver's side centre
pillar.

Wear on one
side

ACX00928 AB

Excessive
camber

ACX00929 AB

Check the camber.

Refer to GROUP
33, On-vehicle
service

− Front

wheel alignment
check and
adjustment

P.33-4

.

Feathered
edge

ACX00930AB

Incorrect toe-in

ACX00931AB

Adjust the toe-in.

Bald spots

ACX00932AB

Unbalanced
wheel

ACX00933 AB

Balance the wheels.

P.31-4

TROUBLESHOOTING

WHEEL AND TYRE

31-4

WHEEL BALANCE ACCURACY

M1311001700582

PURPOSE

This section contains tips and procedures for achiev-
ing accurate wheel balance. Steering wheel vibration
and/or body shake can result if any of these proce-
dures are not carefully observed.
1. Wheels and tyres 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 tyres, shocks,
suspension components, or steering components.

Check your balancer's calibration approximately
every 100 balances. Your wheel balancer's instruc-
tion manual should include calibration procedures. If
the calibration procedures specifically for your bal-
ancer are missing, use the generic steps in this sec-
tion for zero calibration, static balance, and dynamic
balance checks. The wheel balancer calibration
checks are also described in the flowchart (Refer to

P.31-6

).

PROCEDURE <BALANCING TIPS>

AC000041AB

Hub/shaft assembly

Clamping cup

Wing nut

Standard passenger car wheel

Wheel mounting cone

Spring plate

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 centre hole on the

hub side has a chamfered edge. Use a
back-mounting cone on your wheel balancer to
centre the wheel on the balancer shaft.

3. Install a wheel mounting cone. The appropriate

size cone for this vehicle is 67.0 mm.

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.

<CONFIRMING PROPER BALANCE>

1. After balancing the wheel, loosen the wing nut

and turn the wheel 180

° against the balancer's

hub. Then re-tighten the wing nut and check the
balance again. Repeat wheel balance if
necessary.

2. Turn the wheel again 180

° against the balancer's

hub. If the wheel becomes out-of-balance each
time it is turned against the balancer's hub, the
wheel balancer may require calibration.

Scalloped
wear

ACX00934

Lack of rotation of tyres or worn
or out-of-alignment suspension

Rotate the tyres, and
check the front
suspension
alignment.

Refer to GROUP
33, On-vehicle
service

− Front

wheel alignment
check and
adjustment

P.33-4

.

Symptom

Probable cause

Remedy

Reference page