Mitsubishi MOTORS Space Runner 1998, Workshop Manual

Page: 41 / 1164

ENGINE <4G6> -
On-vehicle Service
11A-7
<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.
<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.
MB991668
(Micro-
phone)
Alternator
pulley
Crankshaft
pulley
15 _
15 _
10 - 20 mm
Water pump
pulley
Belt tension gauge
Crankshaft
pulley
Alternator
pulley
Water pump
pulley
Crankshaft
pulley
Alternator
pulley
98 N
Water pump
pulley