Mitsubishi Grandis. Manual — part 789

EXHAUST MANIFOLD

INTAKE AND EXHAUST

15-7

>>C<< EGR VALVE GASKET
INSTALLATION

Install the EGR valve gasket as shown in the
illustration.

INSPECTION

M1151003100713

Check the following points; replace the part if a
problem 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

M1151003300825

AC302358AE

Gasket

Notched
part

Notched
part

Pre-removal and Post-installation Operation
Air Cleaner Intake Duct Removal and Installation (Refer to

P.15-3

).

AC313041

1

1

2

4

5

3

6

44 ± 5 N·m

44 ± 5 N·m

44 ± 5 N·m

49 ± 5 N·m

35 ± 6 N·m

14 ± 1 N·m

14 ± 1 N·m

N

AB

EXHAUST MANIFOLD

INTAKE AND EXHAUST

15-8

REMOVAL SERVICE POINTS
<<A>> OXYGEN SENSOR REMOVAL

Remove the connection and clamp of oxygen sensor
connector, and then use the special tool oxygen
sensor wrench (MB991953) to remove the oxygen
sensor.

<<B>> FRONT EXHAUST PIPE REMOVAL

Remove the connection and clamp of oxygen sensor
connector, and then remove the front exhaust pipe
with the oxygen sensor.

INSTALLATION SERVICE POINT
>>A<< OXYGEN SENSOR INSTALLATION

1. Tighten the oxygen sensor to the specified torque

by using special tool oxygen sensor wrench
(MB991953).

Tightening torque: 44

± 5 N⋅m

2. Connect the oxygen sensor connector and install

the connector bracket.

INSPECTION

M1151003400480

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

Exhaust Manifold Check

1. Check for damage or cracking of any part.
2. Using a straight edge and a feeler gauge, check

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

Removal steps

<<A>>

>>A<<

1.

Oxygen sensor

2.

Exhaust manifold cover

<<B>>

•

Front exhaust pipe (Refer to

P.15-9

.)

3.

Exhaust manifold bracket B

4.

Exhaust manifold assembly

5.

Exhaust manifold gasket

6.

Exhaust manifold bracket A

AC301966

AE

MB991953

Oxygen sensor

AC301966

AE

MB991953

Oxygen sensor

EXHAUST PIPE AND MAIN MUFFLER

INTAKE AND EXHAUST

15-9

EXHAUST PIPE AND MAIN MUFFLER

REMOVAL AND INSTALLATION

M1151008700408

REMOVAL SERVICE POINTS
<<A>> RIVETS/HEAT PROTECTOR
REMOVAL

CAUTION

Be careful not to score the heat protector by drill.

1. Use a 6.0 / diameter / mm drill to make a hole in

the flange of rivet as shown.

2. Break the rivet, and remove the rivet and heat

protector.

AC310364

2

1

AB

6

7

8

9

7

4

12

13

14

15

16

11

17

4

3

10

18

5

44 ± 5 N·m

59 ± 10 N·m

12 ± 2 N·m

12 ± 2 N·m

49 ± 5 N·m

N

N

N

N

N

N

48 ± 7 N·m

48 ± 7 N·m

Exhaust main muffler and heat
protector removal steps

1.

Exhaust main muffler

6.

Exhaust pipe gasket

7.

Exhaust muffler hanger

<<A>>

>>B<<

8.

Rivets

<<A>>

>>B<<

9.

Heat protector
Centre exhaust pipe removal
steps

2.

Centre exhaust pipe

6.

Exhaust pipe gasket

10. Exhaust pipe gasket
11. Exhaust muffler hanger

Catalytic converter and heat
protector removal steps

3.

Catalytic converter

10. Exhaust pipe gasket
12. Seal ring
13. Exhaust pipe damper
14. Exhaust muffler hanger
15. Exhaust pipe hanger bracket

<<A>>

>>B<<

16. Rivets

<<A>>

>>B<<

17. Heat protector

Front exhaust pipe removal
steps

<<B>>

>>A<<

4.

Oxygen sensor

5.

Front exhaust pipe

12. Seal ring
18. Exhaust pipe gasket

AC301909AC

Rivet

Drill

Heat
protector

EXHAUST PIPE AND MAIN MUFFLER

INTAKE AND EXHAUST

15-10

<<B>> OXYGEN SENSOR REMOVAL

Remove the connection and clamp of oxygen sensor
connector, and then use the special tool oxygen
sensor wrench (MB991953) to remove the oxygen
sensor.

INSTALLATION SERVICE POINTS
>>A<< OXYGEN SENSOR INSTALLATION

1. Tighten the oxygen sensor to the specified torque

by using special tool oxygen sensor wrench
(MB991953).

Tightening torque: 44

± 5 N⋅m

2. Connect the oxygen sensor connector and install

the connector bracket.

>>B<< HEAT PROTECTOR/RIVETS
INSTALLATION

Use a riveter to tighten the rivet by the following
procedure.

1. Insert part A of rivet into the riveter, and insert the

rivet into the assembling area.

2. Operate the tool's handle while pushing the flange

surface of rivet by riveter. Part A of rivet is cut and
the rivet is tightened.

AC301966

AE

MB991953

Oxygen sensor

AC301966

AE

MB991953

Oxygen sensor

AC301910 AC

Rivet

Rivet

Riveter

Heat
protector

Part A

Part A