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
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