Mitsubishi Evolution X. Manual — part 173

CRANKSHAFT PULLEY

TSB Revision

ENGINE MECHANICAL

11A-23

INSTALLATION SERVICE POINTS

.

>>A<< CRANKSHAFT PULLEY/CRANKSHAFT
PULLEY WASHER/CRANKSHAFT PULLEY CEN-
TER BOLT INSTALLATION

1. Wipe off the dirt on the crankshaft and the crankshaft pulley

as shown in the figure using a rag.

2. Wipe off the dirt on the crankshaft sprocket, the crankshaft

and the crankshaft pulley as shown in the figure using a rag,
and then degrease them.
NOTE: Degrease them to prevent drop in the friction coeffi-
cient of the pressed area, which is caused by oil adhesion.

3. Install the crankshaft pulley.
4. Wipe off the dirt on the crankshaft pulley washer and the

crankshaft pulley center bolt as shown in the figure using a
rag.

5. Apply an adequate and minimum amount of engine oil to the

threads of the crankshaft pulley center bolt and the lower
area of the flange.

6. Hold the crankshaft pulley with special tools MB990767 and

MD998719 in the same manner as removal.

7. Tighten the crankshaft pulley center bolt according to the

following procedure.

(1) Tighten the crankshaft pulley center bolt to the specified

torque 250 N

⋅ m (184 ft-lb).

(2) Loosen the crankshaft pulley center bolt fully.
(3) Tighten the crankshaft pulley center bolt to the specified

torque 110 N

⋅ m (81 ft-lb).

(4) As shown in the illustration "A," apply the paint mark to

the crankshaft pulley on the extended line of the corner
adjacent to the one of the crankshaft pulley center bolt
corners.

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.

(5) Tighten the crankshaft pulley center bolt by 60

° once

more. Make sure the paint mark of crankshaft pulley
center bolt is aligned with the paint mark of crankshaft
pulley as shown in the illustration "B."

.

AC705007

AC

: Wipe clean with a rag.
: Wipe clean with a rag and degrease.
: Apply a small amount of engine oil.

Crankshaft
pulley center bolt

Crankshaft
pulley washer

Crankshaft
pulley

Crankshaft

Crankshaft
sprocket

Engine front

AC506738

AC

MB990767

MD998719

Crankshaft pulley

AC710640AB

A

B

60˚

Paint mark

Crankshaft pulley
center bolt

CRANKSHAFT PULLEY

TSB Revision

ENGINE MECHANICAL

11A-24

>>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 direction.

• Check that the notches of the notched pulley and the

notches of the drive belt are fit correctly.

• Check that the drive belt is installed in the center of the

flat surface of the flat pulley.

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

2. Set an offset wrench [45

° , a long offset wrench (5/8 x 11/16

inches) recommended] to the pulley bolt of the
auto-tensioner. Then, rotate the auto-tensioner
counterclockwise and remove the L-shaped hexagon
wrench fixing the auto-tensioner.

3. Apply tension to the drive belt while slowly turning the

auto-tensioner clockwise.

AC704717AG

Drive belt

Notched pulley

Flat pulley

AC706172

AC

Generator

Crankshaft
pulley

Water pump
pulley

AC706600AC

Auto-tensioner

L-shaped
hexagon
wrench

CAMSHAFT

TSB Revision

ENGINE MECHANICAL

11A-25

CAMSHAFT

REMOVAL AND INSTALLATION

M1112007800508

Pre-removal operation
• Engine Room Under Cover Front A, B and Engine Room

Side Cover (RH) Removal (Refer to GROUP 51, Under

Cover

P.51-16

).

• Air Cleaner Assembly Removal (Refer to GROUP 15, Air

Cleaner

P.15-10

).

• Charge Air Cooler Intake Hose A, B and Charge Air

Cooler Intake Pipe A Removal (Refer to GROUP 15,

Charge Air Cooler

P.15-15

).

• Strut Tower Bar Removal (Refer to GROUP 42A, Strut

Tower Bar

P.42A-15

).

• Ignition Coil Removal (Refer to GROUP 16, Ignition Sys-

tem

− Ignition Coil

P.16-39

).

Post-installation operation
• Ignition Coil Installation (Refer to GROUP 16, Ignition

System

− Ignition Coil

P.16-39

).

• Strut Tower Bar Installation (Refer to GROUP 42A, Strut

Tower Bar

P.42A-15

).

• Charge Air Cooler Intake Hose A, B and Charge Air

Cooler Intake Pipe A Installation (Refer to GROUP 15,

Charge Air Cooler

P.15-15

).

• Air Cleaner Assembly Installation (Refer to GROUP 15,

Air Cleaner

P.15-10

).

• Engine Room Under Cover Front A, B and Engine Room

Side Cover (RH) Installation (Refer to GROUP 51, Under

Cover

P.51-16

).

CAMSHAFT

TSB Revision

ENGINE MECHANICAL

11A-26

AC708206

1

23

17

16

13

9

20

6

2

AC

85 ± 5 N·m
63 ± 4 ft-lb

7

19

3

31

30

22

11

14

15

24

25

26

29

28

5

34

25 ± 4 N·m
18 ± 3 ft-lb

32

N

35

N

10

13 ± 1 N·m
115 ± 9 in-lb

12

21

4

33

8

N

18

27

N

N

Apply engine oil to all
moving parts before
installation.

10 ± 2 N·m
89 ± 17 in-lb

12 ± 1 N·m
107 ± 8 in-lb

17 ± 3 N·m
13 ± 2 ft-lb

3.0 ± 1.0 N·m
27 ± 8 in-lb

to

30 ± 2 N·m
23 ± 1 ft-lb

to

5.5 ± 0.5 N·m
49 ± 4 in-lb

12 ± 1 N·m
107 ± 8 in-lb

10 ± 2 N·m
89 ± 17 in-lb

10 ± 2 N·m
89 ± 17 in-lb

10 ± 2 N·m
89 ± 17 in-lb

10 ± 2 N·m
89 ± 17 in-lb

(Engine oil)

(Engine oil)

Camshaft removal steps

1.

Breather hose connection

2.

PCV hose connection

3.

Power steering fluid pressure
switch connector connection

4.

Intake oil feeder control valve
connector connection

5.

Exhaust oil feeder control valve
connector connection

6.

Control harness connection

<<

A

>>

>>

G

<<

7.

Rocker cover assembly

8.

Rocker cover gasket

<<

B

>>

•

Cylinder No. 1 compression top
dead center setting (only at
removal)

•

Valve clearance adjustment
(Refer to

P.11A-10

). (only at

installation)

9.

Timing chain upper guide

10. Service hole bolt

<<

C

>>

•

Camshaft and camshaft sprocket
assembly (exhaust side) removal
preparatory operation (only at
removal)

Camshaft removal steps