Mitsubishi Colt Ralliart. Manual - part 4

ON-VEHICLE SERVICE

ENGINE MECHANICAL <4A9>

11A-13

MANIFOLD VACUUM CHECK

M1111002701119

AK203215

MB991910

16-PIN

MB991827

MB991824 

AC

1. Before inspection, set the vehicle to the 

pre-inspection condition.

2. Turn the ignition switch to "LOCK" (OFF) position.

3. Connect the M.U.T.-III to the diagnosis connector.

AK402145

PCV valve

Plug

Vacuum gauge

AC

4. Disconnect the ventilation hose from the positive 

crankcase ventilation (PVC) valve, and then 
connect a vacuum gauge to the ventilation hose. 
Plug the positive crankcase ventilation (PCV) 
valve.

5. Start the engine and check that idle speed is 

approximately 700 r/min.

6. Check the intake manifold vacuum.

Limit: Minimum 60 kPa

7. Turn off the ignition switch.
8. Remove the vacuum gauge and then connect the 

ventilation hose to the positive crankcase 
ventilation (PCV) valve.

9. Remove the M.U.T.-III.

CRANKSHAFT PULLEY

ENGINE MECHANICAL <4A9>

11A-14

CRANKSHAFT PULLEY

REMOVAL AND INSTALLATION

M1112001601060

Pre-removal Operation
• Front Under Cover Panel Assembly Removal (Refer to 

GROUP 51, Front Bumper Assembly and Radiator Grille 

P.51-2

).

• Engine Room Side Under Cover (RH) Removal

Post-installation Operation
• Drive Belt Tension Check and Adjustment (Refer to 

P.11A-6

).

• Engine Room Side Under Cover (RH) Installation
• Front Under Cover Panel Assembly Installation (Refer to 

GROUP 51, Front Bumper Assembly and Radiator Grille 

P.51-2

).

AC405868AB

190 N·m

1

2

3

4

Removal steps 

<<

A

>>

1.

Drive belt

<<

B

>>

>>

A

<<

2.

Crankshaft pulley bolt

>>

A

<<

3.

Crankshaft pulley washer

>>

A

<<

4.

Crankshaft damper pulley

Removal steps (Continued)

CRANKSHAFT PULLEY

ENGINE MECHANICAL <4A9>

11A-15

REMOVAL SERVICE POINTS
<<A>> DRIVE BELT REMOVAL

AC405869AB

Nut for alternator
pivot bolt

Adjusting bolt

Alternator fixing nut

1. Loosen the nut for alternator pivot bolt and 

alternator fixing nut.

CAUTION

To reuse the drive belt, draw an arrow indicating 
the rotating direction (clockwise) on the back of 
the belt using chalk, etc.
2. Turn the adjusting bolt in the anti-clockwise 

direction (to the left) to remove the drive belt.

<<B>> CRANKSHAFT PULLEY BOLT 
REMOVAL

Use the used drive belt to fix the crankshaft damper 
pulley, and loosen the crankshaft pulley bolt.

CAUTION

• Do not use the drive belt set up on the vehi-

cles.

•

AC310988

AC403118 AC

Used drive belt

Cable band

Crankshaft damper pulley

Do not use a cracked or damaged drive belt.

1. Set the used drive belt as shown and hold it with a 

cable band.

CAUTION

Do not hang the used drive belt for the crank-
shaft rotation stopper on the water pump pulley.

AC310989

AC403119 AC

Used drive belt

Water pump

Crankshaft damper 
pulley

2. Turning the crankshaft damper pulley to the 

anti-clockwise direction (to the left), loop the used 
drive belt around the water pump body, hold the 
crankshaft damper pulley and remove the 
crankshaft pulley bolt.

CRANKSHAFT PULLEY

ENGINE MECHANICAL <4A9>

11A-16

INSTALLATION SERVICE POINT
>>A<< CRANKSHAFT DAMPER PUL-
LEY/CRANKSHAFT PULLEY 
WASHER/CRANKSHAFT PULLEY BOLT 
INSTALLATION

AC405912

: Clean
: Apply engine oil

Engine front

Clean

Clean

Clean

(Engine oil)

Crankshaft 
pulley bolt

Crankshaft

Crankshaft pulley
washer

Crankshaft 
damper pulley

AB

1. Clean the screw hole of the crankshaft, the 

crankshaft damper pulley, the crankshaft pulley 
bolt and the crankshaft pulley washer.

2. Install the crankshaft damper pulley.
3. Apply an appropriate quantity of new engine oil to 

the thread of crankshaft pulley bolt.

CAUTION

• Do not use the drive belt set up on the vehi-

cles. 

•

AC310988

AC403118 AD

Used drive belt

Cable band

Crankshaft damper pulley

Do not use a cracked or damaged drive belt.

4. Set the used drive belt and hold it with a cable 

band as during removal.

CAUTION

Do not hang the used drive belt for the crank-
shaft rotation stopper on the water pump pulley.

AC310991

AC403120 AC

Used drive belt

Water pump

Crankshaft damper 
pulley

5. Turning the crankshaft damper pulley to the 

clockwise direction (to the right), loop the used 
drive belt around the water pump body, hold the 
crankshaft damper pulley and tighten the 
crankshaft pulley bolt to the specified torque.

Tightening torque:190 N

⋅m