Mitsubishi Montero (2004+). Manual — part 1148
COOLING FAN
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ENGINE COOLING
14-11
REMOVAL SERVICE POINT
.
<<A>> DRIVE BELT REMOVAL
The following operations will be needed due to the introduction
of the serpentine drive system with the drive belt auto ten-
sioner.
1. Insert a 12.7 mm (1/2 inch) breaker bar into the square hole
on the drive belt auto tensioner, and rotate it clockwise until
the tensioner touches the stopper.
2. Align hole B with hole A, and insert a 5.0 mm (0.20 inch)
Allen wrench to hold the tensioner. Then loosen the drive
belt, and then remove the drive belt auto tensioner.
INSTALLATION SERVICE POINTS
.
>>A<< DRIVE BELT INSTALLATION
1. Install the drive belt auto tensioner with the Allen wrench
inserted.
2. After the drive belt has been installed, remove the Allen
wrench while holding the drive belt auto tensioner with a
socket wrench drive. Then release the drive belt auto
tensioner slowly.
3. Check for proper tension. (Refer to GROUP
00-Maintenance Service
.
ACX01424AB
HOLE A
HOLE B
SQUARE
HOLE
CLOCKWISE
ALLEN WRENCH
ACX01376AB
ALLEN WRENCH
COOLING FAN
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ENGINE COOLING
14-12
>>B<< RADIATOR SHROUD UPPER COVER
INSTALLATION
1. Install the covers securely until the click can be heard from
the four fixing points.
2. Two lugs around the circumference of the covers should be
seen on the outside of the shroud.
3. After installation, check that the covers are fixed securely.
INSPECTION
M1141002200103
.
Cooling Fan Check
• Check the blades for damage and cracks.
• Check for cracks and damage around bolt holes in the fan
hub.
• If any portion of the fan is damaged or cracked, replace the
cooling fan.
.
Fan Clutch Check
• Check to ensure that fluid in the fan clutch is not leaking at
the case joint and seals. If fluid quantity decreases due to
leakage, the fan speed will decrease and engine overheat-
ing might result.
• When the fan attached to the engine is turned by hand, it
should have some resistance. If the fan turns lightly or
freely with no resistance, it is faulty.
• Check the bimetal strip for damage.
ACX00404 AC
THERMOSTAT
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ENGINE COOLING
14-13
THERMOSTAT
REMOVAL AND INSTALLATION
M1141002400312
REMOVAL SERVICE POINT
.
<<A>> RADIATOR LOWER HOSE DISCONNECTION
Make mating marks on the radiator hose and the hose clamp.
Disconnect the radiator hose.
Pre-removal and Post-installation Operation
• Engine Coolant Draining and Refilling (Refer to
.)
• Intake Air Duct Removal and Installation (Refer to
GROUP 15, Air Cleaner
.)
AC204072
12 ± 1 N·m
102 ± 13 in-lb
1
2
3
AB
REMOVAL STEPS
<<A>> >>B<<
1.
RADIATOR LOWER HOSE
CONNECTION
2.
WATER INLET FITTING
>>A<<
3.
THERMOSTAT
REMOVAL STEPS (Continued)
AC200641AB
MATING MARKS
THERMOSTAT
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ENGINE COOLING
14-14
INSTALLATION SERVICE POINT
.
>>A<< THERMOSTAT INSTALLATION
CAUTION
Make absolutely sure that no oil adheres to the rubber ring
of the thermostat. Also do not fold or scratch the rubber
ring during installation.
Install the thermostat so that the jiggle valve is facing straight
up. Be careful not to fold or scratch the rubber ring.
.
>>B<< RADIATOR LOWER HOSE CONNECTION
1. Insert each hose as far as the projection of the water inlet
fitting.
2. Align the mating marks on the radiator hose and hose
clamp, and then connect the radiator hose.
INSPECTION
M1141002500308
.
Thermostat Check
1. Immerse the thermostat in water, and heat the water while
stirring. Check the thermostat valve opening temperature.
Standard value:
Valve opening temperature: 82
± 2°C (180 ± 36°F)
AC000279
JIGGLE VALVE
RUBBER RING
AB
AC200642
MATING
MARKS
PROJECTION
WATER OUTLET
FITTING
AB
ACX00400
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