Mitsubishi Pajero Pinin. Manual - part 11

ENGINE <4G9-GDI> – 

Special Tools

11A-4

SPECIAL TOOLS

Tool

Number

Name

Use

MB991502

MUT

-II

 sub

assembly

D

Measuring the drive belt tension

D

Checking the ignition timing

D

Checking the idle speed

D

Erasing diagnosis code

MB991668

Belt tension meter
set

Measuring the drive belt tension
(used together with the MUT-

II

)

MB990767

End yoke holder

D

Holding the camshaft sprocket

D

Holding the crankshaft sprocket

MD998719 or
MD998754

Crankshaft pulley
holder pin

D

Holding the camshaft sprocket

D

Holding the crankshaft sprocket

MD998713

Camshaft oil seal
installer

Press-in of the camshaft oil seal

MD998781

Flywheel stopper

Securing the flywheel or drive plate

MD998776

Crankshaft rear oil
seal installer

Press-in of the crankshaft rear oil seal

MB990938

Handle

Press-in of the crankshaft rear oil seal

MD998717

Crankshaft front oil
seal installer

Press–in of crankshaft front oil seal

ENGINE <4G9-GDI> – 

Special Tools

11A-5

Tool

Use

Name

Number

MB991653

Cylinder head bolt
wrench

Cylinder head bolt removal and installation

MD998767

Tension pulley
socket wrench

Timing belt tension adjustment

ENGINE <4G9-GDI> – 

On-vehicle Service

11A-6

ON-VEHICLE SERVICE

DRIVE BELT TENSION CHECK AND
ADJUSTMENT

ALTERNATOR DRIVE BELT TENSION CHECK

Check the drive belt tension in the following procedure.

Standard value:

Vibration frequency Hz

143 – 185

Tension N

294 – 490

Deflection (Reference value) mm

9.7 – 12.9

<When using the MUT-

II

>

1.

Connect the special tool (belt tension meter set) to the
MUT-

II

.

2.

Connect the MUT-

II

 to the diagnosis connector.

3.

Turn the ignition switch to ON and select “Belt Tension
Measurement” from the menu screen.

4.

Hold the microphone to the middle of the drive belt between
the pulleys (at the place indicated by the arrow), about
10 – 20 mm away from the rear surface of the belt and
so that it is perpendicular to the belt (within an angle of

±

 15

_

).

5.

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.

Caution
(1) The temperature of the surface of the belt should

be as close as possible to normal temperature.

(2) Do not let any contaminants such as water or oil

get onto the microphone.

(3) If strong gusts of wind blow against the

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

(4) If the microphone is touching the belt while the

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

(5) Do not take the measurement while the vehicle’s

engine is running.

MB991668
(Microphone)

Alternator pulley

Crankshaft pulley

15

_

15

_

10 – 20 mm

ENGINE <4G9-GDI> – 

On-vehicle Service

11A-7

<When using a tension gauge>

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

<Belt deflection check>

Apply 98 N 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 is within the standard value.

ALTERNATOR DRIVE BELT TENSION ADJUSTMENT

1.

Loosen the nut of the alternator pivot bolt.

2.

Loosen the lock bolt.

3.

Use the adjusting bolt to adjust the belt tension and belt
deflection to the standard values.

Standard value:

Items

When adjusted

When replaced

Vibration frequency Hz

155 – 175

203 – 234

Tension N

343 – 441

588 – 784

Deflection
(Reference value) mm

10.5 – 12.0

6.7 – 8.5

4.

Tighten the nut of the alternator pivot bolt.

Tightening torque: 44 Nm

5.

Tighten the lock bolt.

Tightening torque: 22 Nm

6.

Tighten the adjusting bolt.

Tightening torque: 5 Nm

Crankshaft pulley

Alternator pulley

Belt tension
gauge

Crankshaft pulley

Alternator pulley

98 N

Adjusting bolt

Alternator
pivot bolt

Lock bolt

Alternator
pivot nut