Mitsubishi Galant (2004+). Manual - part 1405

 

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Mitsubishi Galant (2004+). Manual - part 1405

 

 

MAINTENANCE SERVICE

TSB Revision

GENERAL

00-43

7. TIMING BELT (REPLACE)

M1001002300273

Replace the belt with a new one according to the maintenance 
schedule 

P.00-37

 to assure proper engine performance.

<2.4L ENGINE>

For removal and installation procedures, refer to GROUP 11A, 
Engine Mechanical <2.4L Engine> 

− Timing Belt − Removal 

and Installation 

P.11A-49

.

<3.8L ENGINE>

For removal and installation procedures, refer to GROUP 11C,  
Engine Mechanical <3.8L Engine> 

− Timing Belt − Removal 

and Installation 

P.11C-48

.

8. DRIVE BELTS (FOR GENERATOR, POWER 
STEERING PUMP AND AIR CONDITIONING) 
(CHECK)

M1001008700031

DRIVE BELT TENSION CHECK <2.4L ENGINE>

CAUTION

Check the drive belt tension after turning the crankshaft 
clockwise one turn or more.
1. Make sure that the indicator mark is within the area marked 

with A in the illustration.

2. If the mark is out of the area, replace the drive belt. (Refer to 

P.11A-26

).

NOTE: The drive belt tension adjustment is not necessary 
as auto-tensioner is adopted.

GENERATOR DRIVE BELT TENSION CHECK 
<3.8L ENGINE>

.

When using scan tool MB991958

Required Special Tools:

• MB991668: Belt Tension Meter Set

• MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991910: MUT-III Main Harness A

AC301702AB

INDICATOR MARK

A

MAINTENANCE SERVICE

TSB Revision

GENERAL

00-44

CAUTION

To prevent damage to scan tool MB991824, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991824.
1. Connect special tool MB991668 to scan tool MB991824.
2. Connect scan tool MB991910 to scan tool MB991824.
3. Connect scan tool MB991910 to the data link connector.
4. Turn the ignition switch to the "ON" position and select "Belt 

Tension" from the menu scan tool MB991824 screen.

CAUTION

• The temperature of the surface of the belt should be as 

close as possible to underhood temperature.

• Do not let any contaminants such as water or oil get 

onto the microphone.

• If strong gusts of wind blow against the microphone or 

if there are any loud sources of noise nearby, the val-
ues measured by the microphone may not correspond 
to actual values.

• If the microphone is touching the belt while the mea-

surement is being made, the values measured by the 
microphone may not correspond to actual values.

• Do not take the measurement while the vehicle's engine 

is running.

5. Hold special tool MB991668 (microphone) to the middle of 

the drive belt between the pulleys (at the place indicated by 
the arrow), about 10 

− 20 mm (0.4 − 0.8 inch) away from the 

rear surface of the belt and so that it is perpendicular to the 
belt (within an angle of 

± 15 degree angle).

6. Gently tap the middle of the belt between the pulleys (the 

place indicated by the arrow) with your finger as shown in 
the illustration, and check that the vibration frequency of the 
belt is within the standard value.

Standard value: 143 

 169 Hz

.

AC302077
AC305412

AC306958AB

MB991824

MB991910

MB991668

DATA LINK

CONNECTOR

AK303692AB

15˚ 15˚

MB991668
(MICROPHONE)

10 – 20mm
(0.4 – 0.8in)

AIR 
CCONDITIONING
COMPRESSOR
PULLEY

GENERATOR
PULLEY

TENSIONER
PULLEY

CRANK
SHAFT
PULLEY

TAP LIGHTLY
WITH A FINGER

MAINTENANCE SERVICE

TSB Revision

GENERAL

00-45

When using the tension gauge
Use a belt tension gauge to check that the belt tension is within 
the standard value.

Standard value: 490 

 686 N (110  154 lb)

.

Belt deflection check
Apply approximately 98 N (22 lb) of force to the middle of the 
drive belt between the pulleys (at the place indicated by the 
arrow) and check that the amount of deflection in within the 
standard value.

Standard value: 8.4 

 10.7 mm (0.33  0.42 in)

AK303693AB

TENSION
GAUGE

AIR 
CCONDITIONING
COMPRESSOR
PULLEY

GENERATOR
PULLEY

TENSIONER
PULLEY

CRANK
SHAFT
PULLEY

AK303694AB

AIR 
CCONDITIONING
COMPRESSOR
PULLEY

GENERATOR
PULLEY

TENSIONER
PULLEY

CRANK
SHAFT
PULLEY

APPROXIMATELY
98 N (22 lb)

MAINTENANCE SERVICE

TSB Revision

GENERAL

00-46

GENERATOR DRIVE BELT TENSION 
ADJUSTMENT

.

1. Loosen the tensioner pulley fixing nut.
2. With the tensioner pulley fixing nut temporarily tightened to 

15 

± 5 N⋅m (11 ± 4 ft-lb), set the belt tension or defection 

amount to the standard value using the adjusting bolt.

Standard value:

3. Tighten the tension pulley fixing nut.

Tightening torque: 49 

± 10 Nm (36 ± 7 ft-lb)

POWER STEERING DRIVE BELT TENSION 
CHECK

.

When using scan tool MB991958

Required Special Tools:

• MB991668: Belt Tension Meter Set

• MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: Vehicle Communication Interface (V.C.I.)

• MB991910: MUT-III Main Harness A

Gently tap the middle of the belt between the pulleys (the loca-
tion indicated by the arrow) with your finger as shown in the 
illustration, and check that the vibration frequency of the belt is 
within the standard value.
NOTE: Refer to 

P.00-43

 for details on the method of measuring 

the vibration frequency using the scan tool.

Standard value:

.

ITEMS

DURING 
ADJUSTMENT

DURING 
REPLACEMENT

Vibration 
frequency Hz

150 

− 163

180

− 202

Tension N (lb)

539 

− 637

(121 

− 143)

785 

− 981

(176 

− 221)

Deflection 
(Reference value) 
mm (in)

8.9 

− 10.1 

(0.35 

− 0.40)

6.2 

− 7.5

(0.24 

− 0.30)

AK303695

TENSIONER
PULLEY

FIXING
NUT

ADJUSTING BOLT

AB

ITEM

WHEN 
CHECKED

DURING 
ADJUSTMENT

DURING 
REPLACEMENT

Vibration 
frequency 
Hz

124 

− 160

134 

− 151

160 

− 189

AC210247

15˚

15˚

MB991668
(MICROPHONE)

10 - 20 mm
(0.4 - 0.8 in)

TAP LIGHTLY
WITH A FINGER

POWER STEERING
OIL PUMP PULLEY

AB

 

 

 

 

 

 

 

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