Mitsubishi Galant 9G. Manual — part 1389

TIMING BELT

TSB Revision

ENGINE MECHANICAL <3.8L ENGINE>

11C-50

<<B>> TIMING BELT REMOVAL

CAUTION

Never turn the crankshaft counterclockwise.
1. Turn the crankshaft clockwise to align each timing mark and

to set the number 1 cylinder to compression top dead center.

2. If the timing belt is to be reused, chalk an arrow on the flat

side of the belt, indicating the clockwise direction.

3. Loosen the center bolt of the tensioner pulley, then remove

the timing belt.

INSTALLATION SERVICE POINTS

.

>>A<< AUTO-TENSIONER INSTALLATION

1. If the auto-tensioner rod remains fully extended, set

according to the following procedure.

CAUTION

Place the auto-tensioner perpendicular to the jaws of the
vice.

(1) Place two dolly blocks in a vice as shown in the

illustration, and then place the auto-tensioner in the vice.

CAUTION

Never compress the pushrod too fast, or it may be dam-
aged.

(2) Slowly compress the pushrod of the auto-tensioner until

pin hole A in the pushrod is aligned with pin hole B in the
cylinder.

(3) Insert the setting pin into the pin holes once they are

aligned.
NOTE: If replacing the auto-tensioner, the pin will already
be inserted into the pin holes of the new part.

AC206490

TIMING MARK

TIMING MARK

CENTER
BOLT

TENSION
PULLEY

CAMSHAFT
SPROCKET
(LEFT BANK)

CAMSHAFT
SPROCKET
(RIGHT BANK)

AB

AC205272

DOLLY BLOCKS

AB

AC206607

PIN HOLE A

PIN HOLE B

AB

TIMING BELT

TSB Revision

ENGINE MECHANICAL <3.8L ENGINE>

11C-51

CAUTION

Do not remove the setting pin from the auto-tensioner.

(4) Install the auto-tensioner to the engine.

.

>>B<< TIMING BELT INSTALLATION

1. Align the timing marks on the camshaft sprockets with those

on the rocker cover and the timing mark on the crankshaft
sprocket with that on the engine block as shown in the
illustration.

CAUTION

The camshaft sprocket (right bank) can turn easily due to
the spring force applied, so be careful not to get your fin-
gers caught.
2. Install the timing belt by the following procedure so that

there is no deflection in the timing belt between each
sprocket and pulley.

(1) Crankshaft sprocket
(2) Idler pulley
(3) Camshaft sprocket (Left bank)
(4) Water pump pulley
(5) Camshaft sprocket (Right bank)
(6) Tensioner pulley

3. Turn the camshaft sprocket (Right bank) counterclockwise

until the tension side of the timing belt is firmly stretched.
Check all the timing marks again.

4. Use special tool MD998767 to push the tensioner pulley into

the timing belt, then temporarily tighten the center bolt.

5. Use special tool MD998769 to turn the crankshaft 1/4 turn

counterclockwise, then turn it again clockwise until the
timing marks are aligned.

AC206490

TIMING MARK

TIMING MARK

CENTER
BOLT

TENSION
PULLEY

CAMSHAFT
SPROCKET
(LEFT BANK)

CAMSHAFT
SPROCKET
(RIGHT BANK)

AC

AC205274AB

MD998767

AC205275

MD998769

TIMING MARK

AB

TIMING BELT

TSB Revision

ENGINE MECHANICAL <3.8L ENGINE>

11C-52

CAUTION

When tightening the center bolt, be careful that the ten-
sioner pulley does not turn with the bolt.
6. Loosen the center bolt of the tensioner pulley. Use special

tool MD998767 and a torque wrench to apply the tension
torque to the timing belt as shown in the illustration. Then
tighten the center bolt to the specified torque.

Standard value: 4.4 N

⋅m (39 in-lb) <Timing belt ten-

sion torque>

Tightening torque: 48

± 6 N⋅m (36 ± 4 ft-lb)

7. Remove the setting pin that has been inserted into the

auto-tensioner.

8. Turn the crankshaft clockwise twice to align the timing

marks.

9. Wait for at least five minutes, then check that the

auto-tensioner pushrod extends within the standard value
range.

Standard value (A): 4.8

− 6.0 mm (0.19 − 0.24 inch)

10.If not, repeat the operation in steps 1 to 8 above.
11.Check again that the timing marks of the sprockets are

aligned.

.

>>C<< CRANKSHAFT PULLEY INSTALLATION

Use special tools MB991800 and MB991802 to install the
crankshaft pulley.

AC206418

MD998767

TENSIO-
NER
PULLEY

4.4 N·m
39 in-lb

48 ± 6 N·m
36 ± 4 ft-lb

AB

AC205276

SETTING PIN

AB

AC206419

AB

A

ACX01675AB

MB991800

MB991802

TIMING BELT

TSB Revision

ENGINE MECHANICAL <3.8L ENGINE>

11C-53

INSPECTION

M1112004400437

AUTO-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.

3. While holding the auto-tensioner with your hand, press the

end of the pushrod against a metal surface (such as the
cylinder block) with a force of 98

− 196 N (22 − 44 pound)

and measure how far the pushrod is pushed in.

Standard value: Within 1 mm (0.04 inch)
A: Length when no force is applied
B: Length when force is applied
A

− B: Movement in

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

the auto-tensioner adjuster.

ACX00536

AUTO-TENSIONER

SPRING

PUSHROD

AB

AC206608AB

A

B

AUTO-
TENSIONER

ROD

MOVEMENT

98 – 196 N
(22 – 44 lb)