Mitsubishi Galant (2004+). Manual - part 1655

WATER PUMP

TSB Revision

ENGINE COOLING

14-19

2. Check that the amount of valve lift is at the standard value 

when the water is at the full-opening temperature.
NOTE: Measure the valve height when the thermostat is 
fully closed, and use this measurement to compare the 
valve height when the thermostat is fully open.

Standard value:

Full-opening temperature:

<2.4L Engine> 95

°C (203°F)

<3.8L Engine> 100

°C (212°F)

Amount of valve lift:

<2.4L Engine> 8.5 mm (0.33 inch) or more
<3.8L Engine> 9.0 mm (0.35 inch) or more

WATER PUMP

REMOVAL AND INSTALLATION <2.4L ENGINE>

M1141002700487

ACX00401AB

VALVE LIFT

Pre-removal and Post-installation Operation
• Engine Coolant Draining and Refilling (Refer to 

P.14-7

).

• Timing Belt Removal and Installation (Refer to GROUP 

11A, Timing Belt 

P.11A-49

).

AC306675AB

1

2

3

N

N

14 ± 1 N·m
120 ± 13 in-lb

14 ± 1 N·m
120 ± 13 in-lb

BOLT SPECIFICATIONS

THREAD DIAMETER × LENGTH mm(in)

8 × 55
(0.3 × 2.2)

8 × 55
(0.3 × 2.2)

8 × 22
(0.3 × 0.9)

8 × 22
(0.3 × 0.9)

8 × 14
(0.3 × 0.6)

REMOVAL STEPS 

1.

WATER PUMP

2.

WATER PUMP GASKET

>>A<<

3.

O-RING

REMOVAL STEPS  (Continued)

WATER PUMP

TSB Revision

ENGINE COOLING

14-20

INSTALLATION SERVICE POINT

.

>>A<< O-RING INSTALLATION

CAUTION

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

REMOVAL AND INSTALLATION <3.8L ENGINE>

M1141002700498

AC103005

WATER PUMP

O-RING

WATER INLET PIPE

AC

Pre-removal and Post-installation Operation
• Engine Coolant Draining and Refilling (Refer to 

P.14-7

).

• Timing Belt Removal and Installation (Refer to GROUP 

11C, Timing Belt 

P.11C-48

).

• Crankshaft Position Sensor Removal and Installation 

(Refer to GROUP 16, Crankshaft Position Sensor 

P.16-43

).

AC205662

24 ± 3 N·m
18 ± 2 ft-lb

42 ± 8 N·m
31 ± 6 ft-lb

24 ± 3 N·m
18 ± 2 ft-lb

1

2

3

4

N

N

AB

BOLT SPECIFICATIONS

THREAD DIAMETER × LENGTH mm(in)

10 × 38
(0.4 × 1.5)

8 × 25
(0.3 × 1.0)

8 × 25
(0.3 × 1.0)

8 × 20
(0.3 × 0.8)

REMOVAL STEPS 

1.

WATER PUMP BRACKET

2.

WATER PUMP

3.

WATER PUMP GASKET

>>A<<

4.

O-RING

REMOVAL STEPS  (Continued)

WATER PUMP

TSB Revision

ENGINE COOLING

14-21

INSTALLATION SERVICE POINT

.

>>A<< O-RING INSTALLATION

CAUTION

Do not let the O-ring get contaminated with grease or 
engine oil.
Fit the O-ring into the groove of the water pipe ends, and apply 
water or coolant to the circumference of the O-ring and the pipe 
bores to insert the pipe assembly.

AC200644 AB

O-RING

WATER PIPE

WATER HOSE AND WATER PIPE

TSB Revision

ENGINE COOLING

14-22

WATER HOSE AND WATER PIPE

REMOVAL AND INSTALLATION <2.4L ENGINE>

M1141003300501

Pre-removal and Post-installation Operation
• Engine Coolant Draining and Refilling (Refer to 

P.14-7

).

• Powertrain Control Module (PCM) Removal and Installa-

tion (Refer to GROUP 13A, Powertrain Control Module 

(PCM) 

P.13A-1121

).

• Air Cleaner Removal and Installation (Refer to GROUP 

15, Air Cleaner 

P.15-4

).

• Thermostat Removal and Installation (Refer to 

P.14-15

).

AC306676

1

12

10

9

8

7

5

11

2

N

4

3

AB

13 ± 2 N·m
111 ± 22 in-lb

24 ± 4 N·m
18 ± 3 ft-lb

6

13 ± 2 N·m
111 ± 22 in-lb

13

N

13

11 ± 1 N·m
98 ± 8 in-lb

REMOVAL STEPS

<<A>> >>C<<

1.

RADIATOR UPPER HOSE 
CONNECTION

2.

RADIATOR LOWER HOSE 
CLAMP

3.

WATER HOSE CLAMP

4.

WATER COOLER HOSE 
CONNECTION

>>B<<

5.

WATER OUTLET FITTING

6.

HEATER WATER HOSE 
CONNECTION

7.

WATER HOSE

>>B<<

8.

THERMOSTAT CASE

9.

HEATER WATER HOSE 
CONNECTION

10. WATER COOLER HOSE 

CONNECTION

11. WATER HOSE
12. WATER INLET PIPE

>>A<<

13. O-RINGS

REMOVAL STEPS (Continued)