Mitsubishi Lancer. Manual - part 269

INLET MANIFOLD

INTAKE AND EXHAUST

15-6

REMOVAL AND INSTALLATION <4G6>

M1151003001236

Pre-removal Operation
• Fuel Line Pressure Reduction (Refer to GROUP 13A - 

On-vehicle Service 

P.13B-325

).

• Engine Coolant Draining (Refer to GROUP 14 - On-vehi-

cle Service 

P.14-21

).

• Strut Tower Bar Removal (Refer to GROUP 42 

P.42-9

).

• Throttle Body Assembly Removal (Refer to GROUP 13B 

P.13B-335

).

• Fuel Delivery Pipe and Fuel Injector Assembly Removal 

(Refer to GROUP 13B 

P.13B-333

).

Post-installation Operation
• Fuel Delivery Pipe and Fuel Injector Assembly Installation 

(Refer to GROUP 13B 

P.13B-333

).

• Throttle Body Assembly Installation (Refer to GROUP 

13B 

P.13B-335

).

• Strut Tower Bar Installation (Refer to GROUP 42 

P.42-9

).

• Engine Coolant Supplying (Refer to GROUP 14 - On-vehi-

cle Service 

P.14-21

).

• Accelerator Cable Adjustment (Refer to GROUP 17 - 

On-vehicle Service 

P.17-2

).

• Fuel Leak Check

AC303657

9.0 ± 1.0 N·m

11 ± 1 N·m

20 ± 2 N·m

31 ± 3 N·m

36 ± 6 N·m

20 ± 2 N·m

20 ± 2 N·m

36 ± 6 N·m

20 ± 2 N·m

11

9

10

2

12

N

14

13

N

AB

5.0 ± 1.0 N·m

3

1

11 ± 1 N·m

4

N

13 ± 1 N·m

5

6

(Engine oil)

7

8

Removal steps 

1.

Emission control equip hose 
connector

2.

Brake booster vacuum hose 
connection

3.

Earth cable connection

4.

Engine control detonation sensor 
connector

5.

Engine oil level gauge and guide 
assembly

6.

Engine oil filler O-ring

7.

Emission vacuum hose connection

Removal steps (Continued)

EXHAUST MANIFOLD

INTAKE AND EXHAUST

15-7

INSPECTION

M1151003100616

Check the following points; replace the part if a prob-
lem is found.

Inlet Manifold Check

1. Check for damage or cracking of any part.

2. Clogging of the negative pressure (vacuum) outlet 

port, or clogging of the exhaust gas recirculation 
passages.

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

distortion of the cylinder head installation surface.
Standard value: 0.15 mm or less 
Limit: 0.20 mm

EXHAUST MANIFOLD

REMOVAL AND INSTALLATION <4G1>

M1151003300568

AC303662

50 ± 10 N·m

24 ± 4 N·m

35 ± 6 N·m

17 ± 2 N·m

30 ± 2 N·m

N

3

7

1

2

4

N

6

8

44 ± 5 N·m

AB

9

5

N

30 ± 2 N·m

30 ± 2 N·m

30 ± 2 N·m

(Engine oil)

8.

Battery wiring harness clamp

9.

Inlet manifold stay

10. Inlet manifold
11. Inlet manifold gasket
12. Emission vacuum hose & pipe and 

emission solenoid valve assembly

13. EGR valve
14. EGR valve gasket

Removal steps (Continued)

Removal steps 

1. Front exhaust pipe connection
2. Exhaust pipe gasket

<<

A

>> >>

A

<< 3. Engine control oxygen sensor (front)

4. Engine oil level gauge and guide 

assembly

5. Engine oil filler O-ring
6. Exhaust manifold cover
7. Exhaust manifold bracket
8. Exhaust manifold
9. Exhaust manifold gasket

EXHAUST MANIFOLD

INTAKE AND EXHAUST

15-8

REMOVAL SERVICE POINT
<<A>> ENGINE CONTROL OXYGEN SEN-
SOR (FRONT) REMOVAL

AC212566AC

MD998770

Engine control 
oxygen sensor 
(front)

Use special tool oxygen sensor wrench (MD998770) 
to remove the engine control oxygen sensor (front).

INSTALLATION SERVICE POINT
>>A<< ENGINE CONTROL OXYGEN SEN-
SOR (FRONT) INSTALLATION

AC212566AC

MD998770

Engine control 
oxygen sensor 
(front)

Use special tool oxygen sensor wrench (MD998770) 
to install the engine control oxygen sensor (front).

EXHAUST MANIFOLD

INTAKE AND EXHAUST

15-9

REMOVAL AND INSTALLATION <4G6>

M1151003300579

Pre-removal and Post-installation Operation
Under cover Removal and Installation

AC303680

50 ± 10 N·m

44 ± 5 N·m

35 ± 6 N·m

14 ± 1 N·m

14 ± 1 N·m

49 ± 5 N·m

29 ± 3 N·m

29 ± 3 N·m

N

3

4

1

2

5

N

8

9

44 ± 5 N·m

AB

10

49 ± 5 N·m

6

7

9.0 ± 2.0 N·m

49 ± 9 N·m

Removal steps 

1. Front exhaust pipe connection
2. Exhaust pipe gasket

<<

A

>> >>

A

<< 3. Engine control oxygen sensor (front)

4. Exhaust manifold cover
5. Exhaust manifold bracket
6. Starter cover

7. Starter cover bracket
8. Engine hanger
9. Exhaust manifold
10. Exhaust manifold gasket

Removal steps (Continued)