Mitsubishi Pajero Pinin 1999 Workshop Manual page 40

11A-8
Oil pump pulley
A
Crankshaft
pulley
ENGINE <4G9-GDI> ±
POWER STEERING OIL PUMP AND AIR CONDITIONER
COMPRESSOR DRIVE BELT TENSION CHECK AND
ADJUSTMENT
Tension
pulley
1. Check if the belt tension is within the standard value using
one of the methods below.
B
Standard value:
A/C
compressor
pulley
<When measuring the vibration frequency>
With your finger tip lightly tap the centre 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.11A-7 for information regarding the vibration
frequency measurement method using MUT- II .
<When measuring the tension>
Use a belt tension gauge to measure the belt tension.
<When measuring the deflection>
Apply 98 N of pressure against the location between the
pulleys shown by the arrow in the illustration and then
measure the deflection.
2. If the tension or deflection is outside the standard value,
adjust by the following procedure.
(1) Loosen tensioner pulley fixing nut A.
(2) Adjust the amount of belt deflection using adjusting
(3) Tighten fixing nut A.
(4) Check the belt deflection amount and tension, and
On-vehicle Service
Items When
checked
Vibration 114 ± 139
frequency
Hz
Tension N 392 ± 588
Deflection 10.0 ± 12.0
(Reference
value) mm
bolt B.
Tightening torque: 25 Nm
readjust if necessary.
Caution
Check after turning the crankshaft once or more
clockwise (right turn).
When When
adjusted replaced
121 ± 133 145 ± 166
441 ± 539 637 ± 834
10.0 ± 11.0 7.0 ± 9.0