Mitsubishi Colt Ralliart. Manual — part 655

TIMING BELT

ENGINE MECHANICAL <4G1>

11C-40

>>C<< VALVE TIMING BELT
INSTALLATION

CAUTION

Be sure to use special tool crankshaft sprocket
spacer (MD998769) when installing the crank-
shaft pulley centre bolt to the crankshaft. If the
bolt is installed directly to the crankshaft, the tip
of the bolt and the thread of the crankshaft may
be damaged.

AC207170

AB

Crankshaft camshaft
drive sprocket

MD998769

1. Set the special tool, the crankshaft pulley washer

and the crankshaft pulley centre bolt to the
crankshaft camshaft drive sprocket.

AC209243

Timing mark

Timing mark

AC209243

Camshaft
sprocket
(Inlet side)

AB

Camshaft
sprocket
(Exhaust side)

Crankshaft
camshaft
drive sprocket

2. Align the timing marks on the camshaft sprocket

and crankshaft camshaft drive sprocket.

AC207445

AB

Crankshaft
camshaft
drive sprocket

Camshaft sprocket
(Exhaust side)

Timing belt
tensioner
pulley

Timing belt
Idler pulley

Belt
tension
side

Camshaft sprocket
(Inlet side)

3. Incorporate the valve timing belt in the following

manner so that the tensile force of the belt is not
lax.
(1) Pass the valve timing belt around the

crankshaft camshaft drive sprocket and the
timing belt idler pulley in that order.

AC207454 AB

Paper clip

(2) Pass the valve timing belt around the

camshaft sprocket (exhaust side), and fix it
with a paper clip as shown.

AC207453AB

Paper clip

Main

Index

Group

TOC

TIMING BELT

ENGINE MECHANICAL <4G1>

11C-41

(3) Pass the valve timing belt around the

camshaft sprocket (inlet side) while aligning
the timing marks on the rocker cover and the
camshaft sprocket with a wrench. Then, fix the
belt with paper clips as shown.

(4) Pass the valve timing belt around the timing

belt tensioner pulley.

CAUTION

Incorporate the valve timing belt. Then apply
reverse rotation (anti-clockwise rotation) pres-
sure to the camshaft sprocket. Re-check to see
that each timing mark is aligned while the ten-
sion side of the belt is right.

(5) Remove the two paper clips.

AC102694 AB

MD998767

4. Using special tool tensioner wrench (MD998767),

turn the timing belt tensioner pulley in the
direction shown to apply tension to the valve
timing belt. Then tighten the timing belt tensioner
pulley mounting bolts temporarily to fix the timing
belt tensioner pulley.

AC205413

Camshaft
sprocket
(Inlet side)

AC

Camshaft
sprocket
(Exhaust side)

Crankshaft
camshaft
drive sprocket

Timing mark

Timing mark

5. Check that the timing marks are aligned.
6. Adjust the valve timing belt tension.

>>D<< VALVE TIMING BELT TENSION
ADJUSTMENT

AC207160

AB

MD998738

Alternator

1. Set special tool adjusting bolt (MD998738) used

when removing the valve timing belt.

CAUTION

Always screw in the special tool in with your
hands, since use of a spanner or other tools may
damage the wire or pin inserted in the timing belt
tensioner adjuster.
2. Gradually screw in the special tool to a position in

which the wire or pin inserted in the timing belt
tensioner adjuster lightly moves.

3. Gradually screw in the special tool to a position in

which the wire or pin inserted in the timing belt
tensioner adjuster lightly moves.

4. Turn the crankshaft 1/4 of a revolution in the

anti-clockwise direction.

AC205413

Camshaft
sprocket
(Inlet side)

AC

Camshaft
sprocket
(Exhaust side)

Crankshaft
camshaft
drive sprocket

Timing mark

Timing mark

5. Turn the crankshaft in the clockwise direction,

align each timing mark to set No.1 cylinder to TDC
of its compression stroke.

Main

Index

Group

TOC

TIMING BELT

ENGINE MECHANICAL <4G1>

11C-42

6. Loosen the timing belt tensioner pulley mounting

bolt.

CAUTION

When tightening the mounting bolt, ensure that
the timing belt tensioner pulley does not rotate
with the bolt. Allowing it to rotate with the bolt
can cause deficient tension of the belt.

AC102695AB

MD998767

7. With special tool tensioner wrench (MD998767)

and torque wrench, apply tension torque 0.8 N

⋅m

to the valve timing belt, and tighten the timing belt
tensioner pulley mounting bolt to the specified
torque.

Tightening torque: 48

± 6 N⋅m

AC207162

AC

Timing belt
tensioner adjuster

Wire or pin

8. Remove wire or pin inserted to timing belt

tensioner adjuster.

AC207160

AB

MD998738

Alternator

9. Remove the special tool adjusting bolt

(MD998738), and install the rubber plug to the
timing belt under cover.

10.Rotate crankshaft clockwise two turns, and leave

it for about 15 minutes.

AC207162

AC

Timing belt
tensioner adjuster

Wire or pin

AC205410

AB

A

Timing belt
tensioner adjuster

11.Insert wire or pin removed in Step 7 again, and

ensure that it can be pulled out with a light load.
When wire or pin can be lightly removed,
appropriate tension is applied on timing belt. In
this case, remove wire or pin. Also the projection
of timing belt tensioner adjuster rod (A) is within
the standard value, appropriate tension is applied.

Standard value (A): 4.8

− 5.5 mm

12.If wire or pin cannot be easily pulled out, repeat

Step 1 through Step 9 to reach proper valve timing
belt tension.

Main

Index

Group

TOC

AC205413

Camshaft
sprocket
(Inlet side)

AC

Camshaft
sprocket
(Exhaust side)

Crankshaft
camshaft
drive sprocket

Timing mark

Timing mark

TIMING BELT

ENGINE MECHANICAL <4G1>

11C-43

13.Check that the timing marks are aligned.

AC207170

AB

Crankshaft camshaft
drive sprocket

MD998769

14.Remove special tool crankshaft sprocket spacer

(MD998769), the crankshaft pulley washer and
the crankshaft pulley centre bolt.

INSPECTION

M1112004400631

TIMING BELT TENSIONER ADJUSTER
CHECK

1. Check for oil leak from seal, and replace it if leak

is detected.

2. Check for wear or damage at the top of the rod.

Replace it, if required.

AC207751

A

B

98 – 196 N

AB

Rod

Timing belt
tensioner
adjuster

Movement

3. Hold the timing belt tensioner adjuster by hand,

and press top end of the rod onto the metal (e.g.
cylinder block) under a pressure of 98

− 196 N to

measure the movement of the rod.

Standard value: Within 1 mm

A: Length when it is free (not pressed)
B: Length when it is pressed
A

− B: Movement

4. If the measured value is out of the standard value,

replace the timing belt tensioner adjuster.

Main

Index

Group

TOC