Mitsubishi Lancer (4A9 engine). Manual - part 27

ACA00348AD

60˚

Figure A

Figure B

Paint 
markings

Crankshaft
pulley centre bolt

CRANKSHAFT PULLEY

ENGINE MECHANICAL <4A9>

11A-22

9. As shown in figure A, put a paint mark on one 

angle of the crankshaft pulley centre bolt. Then, 
put a paint mark on the crankshaft damper pulley 
on the extended line of the angle next to the 
marked angle.

CAUTION

• When the tightening angle is smaller than the 

specified tightening angle, the appropriate 
tightening capacity cannot be secured.

• When the tightening angle is larger than the 

specified tightening angle, remove the bolt to 
start from the beginning again according to 
the procedure.

10.Tighten the crankshaft pulley centre bolt in a 60 

degree angle, and check that the paint mark on 
the crankshaft pulley centre bolt aligns with the 
paint mark on the crankshaft damper pulley as 
shown in figure B.

11.Loosen the crankshaft pulley centre bolt fully.
12.Hold the crankshaft damper pulley and tighten the 

crankshaft pulley centre bolt to the specified 
torque.

Tightening torque: 50 N

⋅m

ACA00348AD

60˚

Figure A

Figure B

Paint 
markings

Crankshaft
pulley centre bolt

13.As shown in figure A, put a paint mark on one 

angle of the crankshaft pulley centre bolt. Then, 
put a paint mark on the crankshaft damper pulley 
on the extended line of the angle next to the 
marked angle.

CAUTION

• When the tightening angle is smaller than the 

specified tightening angle, the appropriate 
tightening capacity cannot be secured.

• When the tightening angle is larger than the 

specified tightening angle, remove the bolt to 
start from the beginning again according to 
the procedure.

14.Tighten the crankshaft pulley centre bolt in a 60 

degree angle, and check that the paint mark on 
the crankshaft pulley centre bolt aligns with the 
paint mark on the crankshaft damper pulley as 
shown in figure B.

CRANKSHAFT PULLEY

ENGINE MECHANICAL <4A9>

11A-23

>>B<< DRIVE BELT INSTALLATION

CAUTION

• To reuse the drive belt, install it by aligning 

the arrow mark on the backside of belt 
marked at the removal with the rotating direc-
tion.

•

AC704717 AJ

Notched pulley

Flat pulley

Drive belt

Check that the notches of notched pulley and 

notches of drive belt are fit correctly.

•

ACA00833AB

Water pump
pulley

Crankshaft damper
pulley

Alternator 
pulley

A/C compressor 
pulley

<Vehicles with A/C>

ACA00740AB

Water pump
pulley

Crankshaft damper pulley

Alternator 
pulley

<Vehicles without A/C>

Check that the drive belt is installed in the 
centre of flat surface of flat pulley.

Install the drive belt to each pulley as shown in the 
figure.

>>C<< POWER STEERING OIL PUMP DRIVE 
BELT INSTALLATION

CAUTION

• To reuse the drive belt, install it by aligning 

the arrow mark on the backside of belt 
marked at the removal with the rotating direc-
tion.

• Check that the notches of the notched pulley 

and the notches of the drive belt are fit cor-
rectly.

1. Install the drive belt to the power steering oil pump 

pulley.

CAUTION

Hang special tool drive belt installer (MB992858) 
on the vehicle components (including front side-
members) using a cord and paper clip to prevent 
from falling.

ACB01459AB

MB992858

2. Set the special tool and drive belt in the 

crankshaft pulley and hold it by a finger as shown.

CAUTION

Be careful that the finger holding the special tool 
is not pinched.
3. Slightly turn the crankshaft pulley clockwise until 

the special tool is pinched and held between the 
crankshaft pulley and the drive belt.

4. If the special tool is held, move the finger off.

CAUTION

If the drive belt is installed, be careful that the 
special tool is detached and fallen. 
5. Slowly turn the crankshaft pulley clockwise and 

install the drive belt.

6. Turn the crankshaft pulley until the special tool is 

detached from the crankshaft pulley and fallen, 
and then remove the special tool.

7. Turn the crankshaft pulley clockwise on several 

times and check that the drive belt is installed in 
the power steering oil pump pulley and the 
crankshaft pulley securely.

CAMSHAFT

ENGINE MECHANICAL <4A9>

11A-24

CAMSHAFT

REMOVAL AND INSTALLATION

M1112007801352

ACA00763

2

16

12

11

10

8

6

14

5

4

3

AB

N

11 ± 3 N·m

13

65 ± 5 N·m

20 ± 1 N·m

15

15

15

11 ± 1 N·m

11 ± 1 N·m

17

19

18

N

22

21

44 ± 5 N·m

20

7

N

1

Apply engine oil to all 
moving parts before
installation.

(Engine oil)

(Engine oil)

N

9

5

3.0 ± 1.0 N·m   5.5 ± 0.5 N·m

9.5 ± 2.5 N·m

9.5 ± 2.5 N·m

92 ± 13 N·m

10 ± 2 N·m

Camshaft removal steps 

•

Air cleaner assembly removal 
(Refer to GROUP 15 

− Air Cleaner )

1.

Engine cover

•

Ignition coil (Refer to GROUP 16 

− 

Ignition System, Ignition Coil )

2.

Breather hose connection

3.

PCV hose connection

Camshaft removal steps 

CAMSHAFT

ENGINE MECHANICAL <4A9>

11A-25

REMOVAL SERVICE POINTS

<<A>> CYLINDER HEAD COVER ASSEMBLY 
REMOVAL

ACA00275AD

2

4

6

1

9

8

3

10

7

5

Engine front

ACA00275

Loosen the cylinder head cover assembly mounting 
bolts in the order of the numbers shown in the illus-
tration, and remove the cylinder head cover assem-
bly.

<<B>> TIMING CHAIN TENSIONER REMOVAL

CAUTION

Never turn the crankshaft anti-clockwise.

20

10

T

AC613570AB

Timing mark
(Slot portion)

Timing mark
(BTDC portion)

ACA00277

AC

Timing mark

Timing mark
(Groove)

V.V.T. sprocket assembly

Timing mark
(Groove)

ACA00277

Camshaft sprocket

1. Turn the crankshaft clockwise, and align the 

timing mark of the crankshaft with the T position of 
BTDC. Then, align the timing mark of the 
camshaft sprocket (2 conceive areas in front of 
the camshaft sprocket) and that of the V.V.T. 
sprocket assembly (the groove of V.V.T. sprocket 
assembly side face). Then set No.1 cylinder to the 
top dead centre of compression

AC311262

AC

Timing chain

Hexagon part of 
the inlet camshaft

Exhaust camshaft

4.

Fuel injector connector

5.

Control harness clamp connection

6.

Engine oil level gauge and guide 
assembly

7.

O-ring

<<

A

>>

>>

F

<<

8.

Cylinder head cover assembly

9.

Cylinder head cover gasket

•

Valve clearance adjustment (Refer 
to )

>>

E

<<

10. Timing chain tensioner cover

<<

B

>>

>>

D

<<

11. Timing chain tensioner

<<

C

>>

>>

C

<<

12. Camshaft sprocket

<<

C

>>

>>

C

<<

13. V.V.T. sprocket assembly

<<

C

>>

>>

C

<<

14. Front camshaft bearing cap

<<

C

>>

>>

C

<<

15. Camshaft bearing cap

<<

C

>>

>>

C

<<

16. Camshaft

Oil feeder control valve removal 
steps 

17. Oil feeder control valve (OCV) 

connector

<<

D

>>

>>

B

<<

18. Oil feeder control valve (OCV)

>>

B

<<

19. O-ring
20. Oil feeder control valve filter bolt
21. Gasket

<<

D

>>

>>

A

<<

22. Oil feeder control valve filter

Camshaft removal steps