Mitsubishi Galant 9G. Manual - part 344

WATER HOSE AND WATER PIPE

TSB Revision

ENGINE COOLING

14-24

3. Apply sealant to the thread of the thermostat case bolts as 

shown.

Specified Sealant: 3M

 AAD Part No.8730, 8731 or 

equivalent

4. With the sealant still wet (within 15 minutes after the sealant 

is applied), install the thermostat case. Do not apply the 
sealant in an area more than the required.

.

>>C<< RADIATOR UPPER HOSE CONNECTION

1. Insert each hose as far as the projection of the water outlet 

fitting.

2. Align the mating marks on the radiator hose and hose 

clamp, and then connect the radiator hose.

REMOVAL AND INSTALLATION <3.8L ENGINE>

M1141003300493

AC303724AD

THERMOSTAT CASE

AC200642

MATING
MARKS

PROJECTION

WATER OUTLET
FITTING

AB

Pre-removal and Post-installation Operation
Thermostat Removal and Installation (Refer to 

P.14-15

).

AC306960

N

1

9

7

3

4

5

6

2

8

30 ± 9 N·m
22 ± 7 ft-lb

19 ± 1 N·m
14 ± 1 ft-lb

19 ± 1 N·m
14 ± 1 ft-lb

AB

N

9

N

N

6

11 ± 1 N·m
98 ± 8 in-lb

2

WATER HOSE AND WATER PIPE

TSB Revision

ENGINE COOLING

14-25

REMOVAL SERVICE POINT

.

<<A>> RADIATOR UPPER HOSE DISCONNEC-
TION

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

INSTALLATION SERVICE POINTS

.

>>A<< O-RING INSTALLATION

CAUTION

Do not allow engine oil or other grease to adhere to the 
O-ring
Insert the O-ring to the water pipe, and coat the outer portion of 
the O-ring with water or engine coolant.

.

REMOVAL STEPS

<<A>> >>C<<

1.

RADIATOR UPPER HOSE 
CONNECTION

2.

HEATER HOSE CONNECTION

3.

THROTTLE BODY WATER FEED 
HOSE

4.

THROTTLE BODY WATER 
RETURN HOSE

5.

THERMOSTAT HOUSING

6.

GASKET

>>B<<

7.

ENGINE COOLANT 
TEMPERATURE SENSOR

8.

WATER PUMP INLET PIPE

>>A<<

9.

O-RING

REMOVAL STEPS (Continued)

AC200641AB

MATING MARKS

AC200644 AB

O-RING

WATER PIPE

WATER HOSE AND WATER PIPE

TSB Revision

ENGINE COOLING

14-26

>>B<< ENGINE COOLANT TEMPERATURE 
SENSOR INSTALLATION

Apply the specified sealant to the thread of the engine coolant 
temperature sensor, and then tighten it to the specified torque.

Specified Sealant: 3M

 AAD Part No. 8731 or equiva-

lent

.

>>C<< RADIATOR UPPER HOSE CONNECTION

1. Insert each hose as far as the projection of the water outlet 

fitting.

2. Align the mating marks on the radiator hose and hose 

clamp, and then connect the radiator hose.

INSPECTION

M1141003400337

.

Water Pipe and Hose Check

Check the water pipe and hose for cracks, damage and clogs. 
Replace them if necessary.

AC208408AB

AC200642

MATING
MARKS

PROJECTION

WATER OUTLET
FITTING

AB

SPECIFICATIONS

TSB Revision

ENGINE COOLING

14-27

SPECIFICATIONS

FASTENER TIGHTENING SPECIFICATIONS

M1141005000346

ITEM

SPECIFICATION

Cylinder block drain plug <2.4L Engine>

44 

± 5 N⋅m (33 ± 3 ft-lb)

Cylinder block drain plug <3.8L Engine>

39 

± 5 N⋅m (29 ± 3 ft-lb)

Radiator
Front end structure bar bolt

M8 

× 10

11 

± 2 N⋅m (98 ± 17 in-lb)

M8 

× 20

22 

± 4 N⋅m (16 ± 3 ft-lb)

Thermostat <2.4L ENGINE>
Harness bracket bolt

11 

± 1 N⋅m (98 ± 8 in-lb)

Water inlet fitting bolt 

13 

± 2 N⋅m (111 ± 22 in-lb)

Thermostat <3.8L ENGINE>
Control harness bolt

5.0 

± 1.0 N⋅m (44 ± 9 in-lb)

Grounding bolt

M6

9.0 

± 2.0 N⋅m (80 ± 17 in-lb)

M8

22 

± 4 N⋅m (16 ± 3 ft-lb)

Water inlet fitting bolt 

19 

± 1 N⋅m (14 ± 1 ft-lb)

Water hose and water pipe <2.4L ENGINE>
Radiator lower hose clamp bolt

11 

± 1 N⋅m (98 ± 8 in-lb)

Thermostat case bolt

24 

± 4 N⋅m (18 ± 3 ft-lb)

Water hose clamp bolt

11 

± 1 N⋅m (98 ± 8 in-lb)

Water inlet pipe bolt 

13 

± 2 N⋅m (111 ± 22 in-lb)

Water outlet fitting bolt 

13 

± 2 N⋅m (111 ± 22 in-lb)

Water hose and water pipe <3.8L ENGINE>
Engine coolant temperature sensor

30 

± 9 N⋅m (22 ± 7 ft-lb)

Thermostat housing bolt

19 

± 1 N⋅m (14 ± 1 ft-lb)

Water pump inlet pipe

11 

± 1 N⋅m (98 ± 8 ft-lb)

Water pump <2.4L ENGINE>
Water pump bolt

14 

± 1 N⋅m (120 ± 13 in-lb)

Water pump <3.8L ENGINE>
Water pump bolt

M8

42 

± 8 N⋅m (31 ± 6 ft-lb)

M10

24 

± 3 N⋅m (18 ± 2 ft-lb)

Water pump bracket bolt

24 

± 3 N⋅m (18 ± 2 ft-lb)