Mitsubishi Lancer Evolution X. Manual — part 216

WHEEL AND TIRE DIAGNOSIS

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WHEEL AND TIRE

31-5

<Confirming Proper Balance>

1. After balancing the wheel, loosen the wing nut

and turn the wheel 180 degree angle 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 degree angle 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.

<Wheel Balancer Calibration Checks>

1. Mount an undamaged original-equipment alloy

rim and tire assembly (wheel) onto your
off-the-car wheel balancer. Balance the wheel.

2. <<Zero Calibration Check>>

Loosen the balancer wing nut, rotate the wheel a
half-turn (180 degree angle), and retighten the
nut. Recheck the balance.

• If the imbalance is 5 g (0.18 ounce) or less, the

zero calibration is OK. Rebalance the wheel, then
go to Step 4 to check static balance.

• If the imbalance is more than 5 g (0.18 ounce), go

to Step 3.

3. Loosen the balancer wing nut, rotate the wheel

1/4 turn (90 degree angle), and retighten the nut.
Recheck the wheel balance.

• If the imbalance is 5 g (0.18 ounce) or less, the

wheel may not be centered on the balancer, or
the balancing cones, the cup, and/or wing nut are
damaged, dirty, or inappropriate for the wheel.
You may need to refer to the balancer manufac-
turer's instructions to verify the correct attach-
ments. After making the necessary corrections,
recheck the wheel balance. If OK, then go to Step
4.

• If the imbalance is more than 5 g (0.18 ounce),

the balancer requires calibration. Contact the bal-
ancer manufacturer for calibration by their repair
representative.

4. <<Static Balance Check>>

Attach a 5 g (0.18 ounce) weight to the outer rim.
Recheck the balancer. The balancer should
detect 5 ± 2 g (0.18 ± 0.06 ounce) of imbalance

170 to 190 degree angle away from the 5 g (0.18
ounce) weight.

• If the imbalance is within specification, the static

balance calibration is correct. Go to Step 5 to
check the dynamic balance.

• If the imbalance is out of specification, the bal-

ancer requires calibration. Contact the balancer
manufacturer for calibration by their repair repre-
sentative.

5. <<Dynamic Balance Check>>

Attach a 5 g (0.18 ounce) weight to the inner rim
at 180 degree angle opposite the 5 g (0.18 ounce)
weight that was added in Step 4. Recheck the
balance. The balancer should detect 5 ± 2 g (0.18
± 0.06 ounce) of imbalance 170 to 190 degree

angle away from both the inner and outer 5 g
(0.18 ounce) weights.

• If the imbalance is within specification, the

dynamic balance calibration is correct. The bal-
ancer calibration checks are complete.

• If the imbalance is out of specification, the bal-

ancer requires calibration. Contact the balancer
manufacturer for calibration by their repair repre-
sentative.

WHEEL AND TIRE DIAGNOSIS

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WHEEL AND TIRE

31-6

WHEEL BALANCER CALIBRATION CHECKING FLOW CHART

AC403557

Balance wheel.

Rotate wheel 1/2 turn.

Imbalance = 5 g (0.18 oz) or less

Imbalance = more than 5 g (0.18 oz)

Rebalance wheel.

Rotate wheel 1/4 turn.

Imbalance = 5 g (0.18 oz) or less

Imbalance = more than 5 g (0.18 oz)

Verify wheel is properly centered.
Verify cones, cup, and wing nut are clean,
undamaged, and appropriate for wheel.
Make necessary corrections, then recheck
wheel balance.

Attach a 5 g (0.18 oz) weight to the outer rim.
Is the imbalance 5 ± 2 g (0.18 ± 0.06 oz) at 170

–

190

degree angle away from the 5 g (0.18 oz) weight?

YES

NO

Attach a 5 g (0.18 oz) weight to the inner rim at 180
degree angle opposite the weight on the outer rim.
Is the imbalance 5 ± 2 g (0.18 ± 0.06 oz) at 170

–

190

degree angle away from both 5 g (0.18 oz) weights?

YES

NO

Balancer does not require
calibration.

Balancer requires calibration.
Contact balancer manufacturer.

ZERO CALIBRATION
CHECK

STATIC BALANCE
CHECK

DYNAMIC BALANCE
CHECK

AC

ON-VEHICLE SERVICE

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WHEEL AND TIRE

31-7

ON-VEHICLE SERVICE

TIRE INFLATION PRESSURE CHECK

M1311000900668

NOTE: For information on tire inflation pressure, refer to the
label attached to the center pillar on the driver's side.
NOTE: The TPMS is not a substitute for regular checks of the
tire inflation pressure. Be sure to check the tire inflation pres-
sure as usual.

TIRE WEAR CHECK

M1311001000721

Measure the tread depth of the tires.

Minimum limit: 1.6 mm (0.06 inch)

If the remaining tread depth is less than the minimum limit,
replace the tire.
NOTE: When the tread depth of the tires is reduced to 1.6 mm
(0.06 inch) or less, wear indicators will appear.

WHEEL RUNOUT CHECK

M1311001100869

Jack up the vehicle so that the wheels are clear of the floor.
While slowly turning the wheel, measure wheel runout with a
dial indicator.

Limit:

If wheel runout exceeds the limit, replace the wheel.

WHEEL AND TIRE

INSTALLATION SERVICE POINT

M1311001300573

Tighten the wheel nuts to the specified torque.

Tightening torque: 98 ± 10 N⋅ m (73 ± 7 ft-lb)

Items

Aluminum wheel

Radial runout

1.0 mm (0.04 inch) or less

Lateral runout

1.0 mm (0.04 inch) or less

ACX00651AD

Lateral

Radial

TIRE PRESSURE MONITORING SYSTEM (TPMS)

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WHEEL AND TIRE

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TIRE PRESSURE MONITORING SYSTEM (TPMS)

REMOVAL AND INSTALLATION

M1311003800109

Refer to GROUP 42B − Keyless Operation System

(KOS)

P.42B-247

or GROUP 42C − Wireless Control

Module (WCM)

P.42C-134

.