Mitsubishi Pajero Pinin. Manual - part 135

ENGINE COOLING – 

On-vehicle Service

14-11

FAN CONTROL RELAY CONTINUITY 
CHECK

Battery voltage

Terminal No.

1

2

3

4

When current is not
supplied

When current is
supplied

Fan control relay

ENGINE COOLING – 

Thermostat

14-12

THERMOSTAT

REMOVAL AND INSTALLATION

Pre-removal and Post-installation Operation

D

Engine Coolant Draining and Supplying 
(Refer to P.14-9.)

D

Engine Cover and Under Cover Removal and
Installation

D

Air Cleaner Removal and Installation 
(Refer to GROUP 15.)

1

22 – 25  Nm

2

3

Removal steps

A

A

" "

B

A

1. Radiator lower or upper hose con-

nection

2. Water inlet or outlet fitting

"

A

A

3. Thermostat

REMOVAL SERVICE POINT

A

A

"

RADIATOR LOWER OR UPPER HOSE
DISCONNECTION

After making mating marks on the radiator hose and the hose
clamp, disconnect the radiator hose.

ENGINE COOLING – 

Thermostat

14-13

INSTALLATION SERVICE POINTS

"

A

A

THERMOSTAT INSTALLATION

Install the thermostat so that the jiggle valve is facing straight
up.

Caution
Make absolutely sure that no oil is adhering to the rubber
ring of the thermostat. In addition, be careful not to fold
over or scratch the rubber ring when inserting. If the rubber
ring is damaged, replace the thermostat.

"

B

A

RADIATOR LOWER OR UPPER 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

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

1.5

_

C

2.

Check that the amount of valve lift is at the standard value
when the water is at the full-opening temperature.

Standard value:

Full-opening temperature: 95

_

C

Amount of valve lift: 8.5 mm or more

NOTE
Measure the valve height when the thermostat is fully
closed, and use this measurement to calculate the valve
height when the thermostat is fully open.

Jiggle valve

Rubber ring

Valve lift

ENGINE COOLING – 

Water Pump

14-14

WATER PUMP

REMOVAL AND INSTALLATION

Pre-removal and Post-installation Operation

D

Engine Coolant Draining and Supplying 
(Refer to P.14-9.)

D

Timing Belt Removal and Installation 
(Refer to GROUP 11.)

D

Idler Pulley Removal and Installation 
(Refer to GROUP 11A.)

24 Nm

1

10 – 12  Nm

2

Sealant:
Mitsubishi Genuine Part No.
MD970389 or equivalent

Removal steps

1. Timing belt rear cover

"

A

A

2. Water pump

INSTALLATION SERVICE POINT

"

A

A

WATER PUMP INSTALLATION

Squeeze out the sealant from the tube evenly and apply it
so that there is not too much sealant and no places without
sealant.

Specified Sealant:

Mitsubishi Genuine Parts No. MD970389 or equivalent