Mitsubishi 380. Manual - part 449

EXHAUST MANIFOLD

ENGINE OVERHAUL <3.8L ENGINE>

11B-22

INSTALLATION SERVICE POINTS

.

>>A<< EXHAUST MANIFOLD STAY, LEFT "B" 
INSTALLATION

1. Tighten temporarily the left "B" of exhaust manifold stay 

together with the exhaust manifold and the left "A" of 
exhaust manifold stay.

2. Tighten the bolt on the exhaust manifold side to the 

specified torque.

TIGHTENING TORQUE: 44 

± 8 N⋅m (33 ± 5 ft-lb)

3. Tighten the bolt on the left "A" side of exhaust manifold stay 

to the specified torque.

TIGHTENING TORQUE: 44 

± 8 N⋅m (33 ± 5 ft-lb)

.

REMOVAL STEPS

1.

RIGHT BANK HEATED OXYGEN 
SENSOR (FRONT)

2.

RIGHT BANK HEATED OXYGEN 
SENSOR (REAR)

3.

HEAT PROTECTOR, RIGHT

>>B<<

4.

EXHAUST MANIFOLD STAY, RIGHT 
"B"

5.

EXHAUST MANIFOLD STAY, RIGHT 
"A"

7.

EXHAUST MANIFOLD, RIGHT

8.

EXHAUST MANIFOLD GASKET

9.

LEFT BANK HEATED OXYGEN 
SENSOR (FRONT)

10. LEFT BANK HEATED OXYGEN 

SENSOR (REAR)

11. CONNECTOR BRACKET
12. HEAT PROTECTOR, LEFT

>>A<<

13. EXHAUST MANIFOLD STAY, LEFT 

"B"

14. EXHAUST MANIFOLD STAY, LEFT 

"A"

15. EXHAUST MANIFOLD, LEFT
16. EXHAUST MANIFOLD GASKET
17. ENGINE HANGER

REMOVAL STEPS (Continued)

     01DB046A

EXHAUST MANIFOLD 

STAY LEFT "B"

     01DB047A

EXHAUST MANIFOLD 

STAY LEFT "B"

ROCKER ARMS AND CAMSHAFT

ENGINE OVERHAUL <3.8L ENGINE>

11B-23

>>B<< EXHAUST MANIFOLD STAY, RIGHT "B"  
INSTALLATION

1. Tighten temporarily the right "B" of exhaust manifold stay 

together with the exhaust manifold and the right "A" of 
exhaust manifold stay.

2. Tighten the bolt on the exhaust manifold side to the 

specified torque.

TIGHTENING TORQUE: 44 

± 8 N⋅m (33 ± 5 ft-lb)

3. Tighten the bolt on the right "A" side of exhaust manifold 

stay to the specified torque.

TIGHTENING TORQUE: 44 

± 8 N⋅m (33 ± 5 ft-lb)

ROCKER ARMS AND CAMSHAFT

REMOVAL AND INSTALLATION

M1113005400585

AK302908

EXHAUST MANIFOLD 

STAY RIGHT "B"

01DB049A

1

APPLY ENGINE OIL

TO ALL MOVING

PARTS BEFORE

INSTALLATION.

2

11

8

21

18

12

13

24

20

25

23

22

31 ± 3 N·m

23 ± 2 ft-lb

13 ± 2 N·m

115 ± 7 in-lb

3.5 ± 0.5 N·m

31 ± 4 in-lb

15

16

19

17

14

9

4

3

6

10

3.5 ± 0.5 N·m

31 ± 4 in-lb

10

19

19

15

16

15

16

7

5

ROCKER ARMS AND CAMSHAFT

ENGINE OVERHAUL <3.8L ENGINE>

11B-24

Required Special Tools:

• MB991559: Camshaft Oil Seal Installer Adapter

• MD998442: Air Bleed Wire

• MD998443: Lash Adjuster Holder

• MD998713: Camshaft Oil Seal Installer

REMOVAL SERVICE POINT

.

<<A>> ROCKER ARMS AND SHAFT REMOVAL

CAUTION

If the lash adjuster is re-used, clean the lash adjuster. 
(Refer to lash adjuster inspection 

P.11B-26

.)

Set special tool MD998443 to prevent the lash adjuster from 
coming free and falling to the floor.

INSTALLATION SERVICE POINTS

.

>>A<< CAMSHAFT INSTALLATION

CAUTION

Use care to prevent confusion of the right and left bank 
camshafts.
1. Apply engine oil to the camshaft journals and cams and then 

install the camshafts.

NOTE: The camshaft with a longer overall length is for the 
left bank.

REMOVAL STEPS

1.

BREATHER HOSE

2.

BLOW-BY HOSE

3.

POSITIVE CRANKCASE 
VENTILATION HOSE

4.

POSITIVE CRANKCASE 
VENTILATION VALVE

5.

OIL FILLER CAP

6.

ROCKER COVER, LEFT

7.

ROCKER COVER GASKET

8.

ROCKER COVER, RIGHT

9.

ROCKER COVER GASKET

10. OIL SEAL

>>D<<

11. CAMSHAFT OIL SEAL
12. ROCKER SHAFT CAP

<<A>> >>C<<

13. ROCKER ARMS AND SHAFT

<<A>> >>C<<

14. ROCKER ARMS AND SHAFT
15. ROCKER ARM A
16. ROCKER ARM B
17. ROCKER ARM SHAFT

>>B<<

18. LASH ADJUSTER
19. ROCKER ARM C
20. ROCKER ARM SHAFT

>>B<<

21. LASH ADJUSTER
22. THRUST CASE
23. O-RING

>>A<<

24. CAMSHAFT, RIGHT

>>A<<

25. CAMSHAFT, LEFT

REMOVAL STEPS (Continued)

AKX00613AB

MD998443

AK204034AB

TIMING BELT SIDE

CAMSHAFT, LEFT

CAMSHAFT, RIGHT

ROCKER ARMS AND CAMSHAFT

ENGINE OVERHAUL <3.8L ENGINE>

11B-25

2. Check to see that the dowel pin of the camshaft is located at 

the position shown.

.

>>B<< LASH ADJUSTER INSTALLATION

CAUTION

If the lash adjuster is re-used, clean the lash adjuster. 
(Refer to lash adjuster inspection 

P.11B-26

.)

Fit the lash adjuster onto the rocker arm without allowing diesel 
fuel to spill out. Fit special tool MD998443 to prevent the lash 
adjuster coming from free and falling to the floor.

.

>>C<< ROCKER ARMS AND SHAFT 
INSTALLATION

1. Position the end with the larger chamfer at the right on the 

front bank, and at the left on the rear bank.

NOTE: The side with the four bolt holes is on the intake side.

2. Position the side with the oil holes on the lower side 

(cylinder head side).

.

AK204035AB

APPROXI-

MATELY

60˚

RIGHT BANK

LEFT BANK

APPROXI-

MATELY

71˚

AKX00715

MD998443

LASH

ADJUSTER

AB

AK202325

TIMING BELT SIDE

CHAMFERED

OIL HOLE

AC