Content .. 70 71 72 73 ..

Mitsubishi Montero Sport (2004+). Manual - part 72

MAINTENANCE SERVICE

TSB Revision

GENERAL <BODY AND CHASSIS>

00-47

4. As shown in the illustration, keep the microphone

(MB991668) 10 to 20 mm (0.39

− 0.79 inch) away from the

back side of the belt perpendicularly (within an inclination of
± 15 degrees).

5. With your finger tip lightly tap the center of the belt between

the pulleys in the location shown by the arrow in the
illustration to check whether the belt vibration frequency is
within the standard.

Standard value:

CAUTION

• Measure when the belt surface temperature is close to

room temperature.

• Make sure that water or oil, etc., does not get on the

microphone.

• If a strong wind blows or noise is made close to the

microphone during measure, the meter will show a
value that differs from the actual value.

• If the measurement is taken with the microphone touch-

ing the belt, the meter will show a value that differs
from the actual value.

• Do not measure while the engine is running.

ITEM

SPECIFICATION

Vibration frequency Hz A

216

− 265

146

− 180

AC003360

MB991668
(MICROPHONE)

10 – 20 mm
(0.39 – 0.79 in)

15˚

10 – 20 mm
(0.39 – 0.79 in)

MB991668
(MICROPHONE)

COOLING FAN
PULLEY

TENSION
PULLEY

GENERATOR
PULLEY

CRANKSHAFT PULLEY

MAINTENANCE SERVICE

TSB Revision

GENERAL <BODY AND CHASSIS>

00-48

<When not using scan tool (MUT-III)>
1. Use a belt tension gauge to check that the belt tension is at

the standard value at a point half-way between the two
pulleys (indicated by an arrow in the illustration). In addition,
press this section with a force of 98 N (22 lb) and check that
the amount of the belt deflection is at the standard value.

Standard value:

2. If the tension or deflection is not within the standard value,

adjust by the following procedure.

(1) Loosen the tension pulley fixing nut.
(2) Tighten provisionally the tension pulley fixing nut to 15

⋅m (11 ft-lb), and turn the adjusting bolt to adjust the belt

tension or deflection to the standard value.

Standard value:

(3) Tighten the tension pulley fixing nut.

Tightening torque: 49

± 10 N⋅m (36 ± 7 ft-lb)

Power Steering Oil Pump Drive Belt

<When using scan tool (MUT-III)>
With your finger tip lightly tap the enter of the belt between the
pulley in the location shown by the arrow in the illustration and
then measure the belt vibration frequency.
NOTE: Refer to

P.00-46

for information regarding the vibration

frequency measurement method using the scan tool (MUT-III).

ITEM

SPECIFICATION

Tension (lb)

392

− 588 (88 − 132)

Deflection <Reference
value> mm (in)

6.5

− 8.9 (0.26 − 0.35)

9.3

− 12.5 (0.37 − 0.49)

ITEM

DURING
ADJUSTMENT

DURING
REPLACEMENT

Vibration
frequency Hz

230

− 254

307

− 342

156

− 172

208

− 232

Tension N (lb)

441

− 539 (99 −

121)

784

− 980 (176 −

220)

Deflection
<reference
value> mm
(in)

7.0

− 8.4 (0.28

− 0.33)

4.0

− 5.2 (0.16 −

0.20)

10.1

− 1.7 (0.40

− 0.46)

6.0

− 7.4 (0.24 −

0.29)

AC003361

COOLING
FAN PULLEY

CRANK-
SHAFT
PULLEY

TENSION PULLEY

GENERATOR
PULLEY

AC003362AB

FIXING NUT

ADJUSTING BOLT

TENSION
PULLEY

MAINTENANCE SERVICE

TSB Revision

GENERAL <BODY AND CHASSIS>

00-49

<When not using scan tool (MUT-III)>
1. Use a belt tension gauge to check that the belt tension is at

Standard value:

2. If the tension or deflection is not within the standard value,

adjust by the following procedure.

(1) Loosen the tension pulley nut.
(2) Adjust the amount of belt deflection using the adjusting

bolt.

(3) Tighten the tension pulley nut.

Tightening torque: 49 N

⋅m (36 ft-lb)

CAUTION

Turn the crankshaft once or more clockwise.

(4) Check the belt deflection amount and tension, and

readjust if necessary.

Air Conditioning Compressor Drive Belt

<When using scan tool (MUT-III)>
With your finger tip lightly tap the center of the belt between the
pulleys in the location shown by the arrow in the illustration and
then measure the belt vibration frequency.
NOTE: Refer to

P.00-46

for information regarding the vibration

frequency measurement method using the scan tool (MUT-III).

ITEM

WHEN
CHECKED

DURING
ADJUSTME
NT

DURING
REPLACEM
ENT

Vibration
frequency Hz

107

− 137

115

− 130

137

− 163

Tension N
(lb)

294

− 490

(66

− 110)

343

− 441

(77

− 99)

490

− 86

(110

− 154)

Deflection
(reference
value) mm
(in)

14.3

− 18.6

(0.57

− 0.73)

15.3

− 17.4

(0.61

− 0.68)

11.1

− 14.3

(0.44

− 0.56)

AC003363

POWER
STEERING OIL
PUMP PULLEY

TENSION
PULLEY

COOLING FAN PULLEY

DEFLEC-
TION

AC003364AB

TENSION
PULLEY NUT

ADJUSTING
BOLT

MAINTENANCE SERVICE

TSB Revision

GENERAL <BODY AND CHASSIS>

00-50

<When not using scan tool (MUT-III)>
1. Use a belt tension gauge to check that the belt tension is at

he standard value at a point half-way between the two
pulleys (indicated by an arrow in the illustration). In addition,
press this section with a force of 98 N (22 lb) and check that
the amount of belt deflection is at the standard value.

Standard value:

2. If the tension or deflection is not within the standard value,

adjust by the following procedure.

(1) Loosen the tension pulley fixing nut.
(2) Adjust the amount of belt deflection using the adjusting

bolt.

(3) Tighten the fixing nut.

CAUTION

Turn the crankshaft once or more clockwise before check-
ing.

(4) Check the belt deflection amount and tension, and

readjust if necessary.

9. EXHAUST SYSTEM (CONNECTIONS PORTION
OF MUFFLER, MUFFLER PIPES AND
CONVERTER HEAT SHIELDS) (CHECK AND
SERVICE AS REQUIRED)

M1001005800307

1. Check for holes and exhaust gas leaks due to damage,

corrosion, etc.

2. Check the joints and connections for looseness and exhaust

gas leaks.

3. Check the rubber hangers and brackets for damage.

ITEM

WHEN
CHECKED

DURING
ADJUSTME
NT

DURING
REPLACEM
ENT

Vibration
frequency Hz

207

− 232

207

− 232

243

− 264

Tension N
(lb)

392

− 490

(88

− 110)

392

− 490

(88

− 110)

593

− 637

(121

− 143)

Deflection
(reference
value) mm
(in)

5.6

− 6.4

(0.22

− 0.25)

5.6

− 6.4

(0.22

− 0.25)

4.3

− 5.1

(0.17

− 0.20)

AC003365

CRANKSHAFT
PULLEY

TENSION
PULLEY

A/C COMPRESSOR PULLEY

DEFLECTION

AC003366AB

CRANKSHAFT
PULLEY

TENSION
PULLEY

ADJUSTING BOLT

FIXING NUT

A/C
COM-
PRES-
SOR
PULLEY

Content .. 70 71 72 73 ..