Mitsubishi 380. Manual - part 242

INTAKE MANIFOLD

INTAKE AND EXHAUST

15-8

REMOVAL SERVICE POINT

.

<<A>> FUEL RAIL AND INJECTOR REMOVAL

CAUTION

Care must be taken when removing the fuel rail not to drop 
the injector.
Remove the fuel rail with the injectors attached to it.

INSTALLATION SERVICE POINTS

.

>>A<< INTAKE MANIFOLD GASKET INSTALLA-
TION

Install the gasket with the protrusions in the position illustrated.

.

>>B<< INTAKE MANIFOLD INSTALLATION

1. Coat the intake manifold mounting studs with engine oil.
2. Tighten the intake manifold mounting nuts by the following 

procedure.

.

ACX02434AC

PROTRUSION

PROTRUSION

FRONT OF VEHICLE

ORDER MOUNTING NUTS TIGHTENING TORQUE 

1st

Right-bank nuts

6.5 

± 1.5 N⋅m (58 ± 13 in-lb)

2nd

Left-bank nuts

22 

± 1 N⋅m (16 ± 1 ft-lb)

3rd

Right-bank nuts

22 

± 1 N⋅m (16 ± 1 ft-lb)

4th

Left-bank nuts

22 

± 1 N⋅m (16 ± 1 ft-lb)

5th

Right-bank nuts

22 

± 1 N⋅m (16 ± 1 ft-lb)

AC001433

RIGHT BANK
LEFT BANK

AB

INTAKE MANIFOLD

INTAKE AND EXHAUST

15-9

>>C<< FUEL HIGH-PRESSURE HOSE 
INSTALLATION

CAUTION

• Be careful not to allow any engine oil to enter the fuel 

rail.

• Be careful not to bend the fuel high-pressure hose as it 

is made of plastics.

1. When connecting the fuel high-pressure hose to the fuel rail, 

apply a small amount of new engine oil to the O-ring and 
then insert the fuel high-pressure hose, being careful not to 
damage the O-ring.

2. While turning the fuel high-pressure hose to the left and 

right, install it to the fuel rail.

3. Check that the injector turns smoothly. If it does not turn 

smoothly, the O-ring may be trapped. Remove the fuel 
high-pressure hose and then re-insert it into the fuel rail and 
check again.

INSPECTION

M1151003100672

Check the following points; replace the part if a problem is 
found.

.

Intake Manifold Check

1. Check for damage or cracking of any part.

2. Clogging of the negative pressure (vacuum) outlet port.

3. Using a straight edge and feeler gauge, check for distortion 

of the cylinder head installation surface.

Standard value: 0.15 mm (0.006 inch) or less 
Limit: 0.20 mm (0.008 inch)

AC209221

CONNECTOR

MAIN PIPE NOZZLE OR
FUEL MAIN PIPE

AB

EXHAUST MANIFOLD

INTAKE AND EXHAUST

15-10

EXHAUST MANIFOLD

REMOVAL AND INSTALLATION 

M1151003301055

<LEFT BANK>

Pre-removal and Post-installation Operation
• Under Cover Removal and Installation (Refer to GROUP 

51, Under Cover 

P.51-13

). 

• Air Duct Removal and Installation (Refer to 

P.15-4

).

05DB028A

19 ± 3 N·m

14 ± 2 ft-lb

44 ± 8 N·m

33 ± 5 ft-lb

44 ± 8 N·m

33 ± 5 ft-lb

44 ± 5 N·m

33 ± 3 ft-lb

49 ± 9 N·m

37 ± 6 ft-lb

14 ± 1 N·m

120 ± 13 in-lb

1

1

2

3

4

5

6

7

8

9

10

N

N

44 ± 5 N·m

33 ± 3 ft-lb

44 ± 5 N·m

33 ± 3 ft-lb

REMOVAL STEPS

1.

LEFT HEATED OXYGEN SENSOR 
CONNECTOR

<<A>>

>>A<<

2.

LEFT BANK HEATED OXYGEN 
SENSOR (FRONT)

<<B>>

>>B<<

3.

LEFT BANK HEATED OXYGEN 
SENSOR (REAR)

4.

HEAT PROTECTOR

5.

FRONT EXHAUST PIPE 
CONNECTING BOLTS

6.

FRONT EXHAUST PIPE GASKET

7.

EXHAUST MANIFOLD STAY, LEFT 
B

8.

EXHAUST MANIFOLD

9.

EXHAUST MANIFOLD GASKET

10. EXHAUST MANIFOLD STAY, LEFT 

A

REMOVAL STEPS (Continued)

EXHAUST MANIFOLD

INTAKE AND EXHAUST

15-11

<RIGHT BANK>

Required Special Tools:

• MB991953: Oxygen Sensor Wrench

• MD998770: Oxygen Sensor Wrench

Pre-removal and Post-installation Operation
• Air Cleaner Cover and Air Intake Duct Removal and 

Installation (Refer to 

P.15-4

).

• Battery Removal and Installation
• Under Cover Removal and Installation (Refer to GROUP 

51, Under Cover 

P.51-13

). 

• Front Exhaust Pipe, Center Exhaust Pipe Removal and 

Installation (Refer to 

P.15-14

).

• Strut Tower Bar Removal and Installation (Refer to 

GROUP 42, Strut Tower Bar 

P.42-12

).

• Engine Coolant Draining and Refilling (Refer to GROUP 

14, On-vehicle Service 

− Engine Coolant Replacement 

P.14-27

).

05DB029A

44 ± 5 N·m

33 ± 3 ft-lb

1

2

3

4

5

6

7

10

12

14 ± 1 N·m

120 ± 13 in-lb

13

N

44 ± 5 N·m

33 ± 3 ft-lb

75 ± 10 N·m

55 ± 7 ft-lb

11

REMOVAL STEPS

1.

CENTER UNDER FLOOR HEAT 
PROTECTOR

•

STEERING GEAR AND LINKAGE 
PROTECTOR (REFER TO GROUP 37, 
POWERSTEERING GEAR BOX AND 
LINKAGE 

P.37-30

)

2.

FRONT UNDER FLOOR HEAT 
PROTECTOR

3.

EXHAUST MANIFOLD STAY, RIGHT A

4.

RIGHT BANK HEATED OXYGEN 
SENSOR (FRONT) CONNECTOR

5.

RIGHT BANK HEATED OXYGEN 
SENSOR (REAR) CONNECTOR

<<A>>

>>A<<

6.

RIGHT BANK HEATED OXYGEN 
SENSOR (FRONT)

<<A>>

>>A<<

7.

RIGHT BANK HEATED OXYGEN 
SENSOR (REAR)

10.

UPPER HEAT PROTECTOR

11.

EXHAUST MANIFOLD STAY, RIGHT B

12.

EXHAUST MANIFOLD

13.

EXHAUST MANIFOLD GASKET

REMOVAL STEPS (Continued)