Mitsubishi Grandis. Manual - part 659

INLET MANIFOLD AND WATER PUMP

ENGINE OVERHAUL

11B-31

INLET MANIFOLD AND WATER PUMP

REMOVAL AND INSTALLATION

M1113025500067

AK305764 AB

1

2

3

4

5

6

7

9

10

11

8

12

13

14

15

16

17

18

19

20 ± 2 N·m

24 ± 3 N·m

14 ± 1 N·m

13 ± 2 N·m

24 ± 4 N·m

31 ± 3 N·m

23 ± 2 N·m

19 ± 3 N·m

13 ± 2 N·m

30 ± 9 N·m

24 ± 3 N·m

13 ± 2 N·m

13 ± 2 N·m

11 ± 1 N·m

Removal steps

1. Water hose
2. Water hose
3. Water pump
4. Water pump gasket

>>G<<

5. O-ring

>>G<<

6. Water inlet pipe

>>G<<

7. O-ring

>>F<<

8. Inlet manifold stay
9. Water inlet fitting

>>E<<

10. Thermostat

>>D<<

11. Thermostat housing

12. Engine cover bracket
13. Inlet manifold
14. Inlet manifold gasket
15. Engine hanger
16. Detonation sensor

<<A>> >>C<<

17. Oil pressure switch

>>B<<

18 Engine coolant temperature sensor

>>A<<

19. Water outlet fitting

Removal steps (Continued)

INLET MANIFOLD AND WATER PUMP

ENGINE OVERHAUL

11B-32

REMOVAL SERVICE POINT
<<A>> OIL PRESSURE SWITCH 
REMOVAL

Using special tool Oil pressure switch wrench 
(MD998054), removal the oil pressure switch.

INSTALLATION SERVICE POINTS
>>A<< WATER OUTLET FITTING 
INSTALLATION

1. Apply a 3 mm diameter bead of FIPG to the 

indicated surface of the water outlet fitting.

Specified sealant:

Mitsubishi Genuine Part No.MD970389 or 

equivalent

2. Install the housing quickly (within 15 minutes) 

while the sealant is wet and tighten the bolts to the 
specified torque.

Tightening torque: 13 

± 2 N⋅m

NOTE: After installation, keep the sealed area away 
from the coolant for approximately one hour.

>>B<< SEALANT APPLICATION TO 
ENGINE COOLANT TEMPERATURE 
SENSOR

CAUTION

When using a tool, avoid letting it touch the 
connector portion which is made of plastic.
1. Remove all old sealant remaining on the threads 

of the coolant temperature sensor and in the 
threaded hole in the thermostat housing.

2. Apply sealant to the coolant temperature sensor's 

threads indicated in the drawing.

Specified sealant:

LOCTITE 262 or equivalent

>>C<< SEALANT APPLICATION TO OIL 
PRESSURE SWITCH

1. Apply sealant to the threaded portion.

Specified Sealant:

Three bond 1215 or equivalent

AK300156

MD998054

AD

AK305765AB

3 mm

AK202799AB

AK300715 AB

INLET MANIFOLD AND WATER PUMP

ENGINE OVERHAUL

11B-33

2. Using special tool Oil pressure switch wrench 

(MD998054), tighten the oil pressure switch to the 
specified torque.

Tightening torque: 19 

± 3 N⋅m

>>D<< THERMOSTAT HOUSING 
INSTALLATION

1. Remove all old FIPG remaining on the thermostat 

housing and cylinder head.

2. Apply a 3 mm diameter bead of FIPG on the 

indicated surface of the thermostat housing.

Specified sealant:

Mitsubishi Genuine Part No.MD970389 or 

equivalent

3. Coat the bolt with sealant, then install and tighten 

it.

Specified sealant:

3M ATD Part No.8672 or equivalent

4. Install the housing quickly (within 15 minutes) 

while the sealant is wet and tighten the bolts to the 
specified torque.

Tightening torque: 24 

± 4 N⋅m

NOTE: After installation, keep the sealed area 
away from the coolant for approximately one hour.

>>E<< THERMOSTAT INSTALLATION

1. Check that the rubber ring is undamaged and 

seated correctly in the thermostat flange.

2. Install the thermostat as shown in the illustration. 

The jiggle valve must be at the uppermost 
position.

>>F<< INLET MANIFOLD STAY 
INSTALLATION

1. Install the inlet manifold stay and tighten the bolts 

just finger tight.

2. Check to ensure that the stay is in close contact 

with the bosses of the inlet manifold and cylinder 
block.

3. First tighten the inlet manifold side bolts to the 

specified torque, then the cylinder block side bolts 
to the specified torque.

Tightening torque: 31 

± 3 N⋅m

AK300157

MD998054

AD

AK301337AD

3 mm

AK300158

AK304588AB

Jiggle valve

Thermostat
housing

AK301361

Cylinder block

Intake
manifold

AE

INLET MANIFOLD AND WATER PUMP

ENGINE OVERHAUL

11B-34

>>G<< WATER INLET PIPE/O-RING 
INSTALLATION

CAUTION

Keep the O-ring free of oil or grease.

1. Attach a new O-ring to each end of the water inlet 

pipe.

2. Wet the O-ring with water.
3. Insert the rear end of the pipe into the thermostat 

housing.

AK301861

O-ring

Water inlet pipe

AC