Mitsubishi Galant (2004+). Manual - part 1656

WATER HOSE AND WATER PIPE

TSB Revision

ENGINE COOLING

14-23

REMOVAL SERVICE POINT

.

<<A>> RADIATOR UPPER HOSE DISCONNECTION
After making mating marks on the radiator hose and hose 
clamp, disconnect the radiator hose.

INSTALLATION SERVICE POINTS

.

>>A<< O-RINGS INSTALLATION

CAUTION

Do not let the O-ring get contaminated with grease or 
engine oil.
Fit an O-ring into the groove of the water inlet pipe and apply 
water or coolant to the circumference of the O-ring or the inside 
of the mounting surface of the water pump or thermostat case 
for insertion.

.

>>B<< THERMOSTAT CASE/WATER OUTLET FITTING 
INSTALLATION
1. Use a gasket scraper or wire brush to completely eliminate 

all gasket material on the gasket mounting surface.

2. Apply a bead of the sealant to the cylinder head mating 

surface of the thermostat case as shown.

Specified Sealant: 3M

 AAD Part No.8672, 3M AAD 

Part No.8679/8678 or equivalent

AC200641AB

MATING MARKS

AC200644 AC

O-RING

WATER INLET PIPE

WATER PUMP OR THERMOSTAT CASE

AC305204AE

φ 3 mm
(0.12 in)

THERMOSTAT CASE

WATER OUTLET
FITTING

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 DISCONNECTION
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.

.

>>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

.

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

AC208408AB

WATER HOSE AND WATER PIPE

TSB Revision

ENGINE COOLING

14-26

>>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.

AC200642

MATING
MARKS

PROJECTION

WATER OUTLET
FITTING

AB