Mitsubishi Galant 9G. Manual — part 1378

SPECIAL TOOLS

TSB Revision

ENGINE MECHANICAL <3.8L ENGINE>

11C-6

MD998718
Crankshaft rear oil seal
installer

MD998718-01

Press-fitting the crankshaft rear oil
seal

MD998767
Tension pulley socket
wrench

MD998752-01

Timing belt tension adjustment

MD998769
Crankshaft pulley spacer

General service
tool

Rotating the crankshaft when
installing the timing belt

MD998772
Valve spring compressor

General service
tool

Compressing valve spring

MD998774
Valve stem seal installer

MD998774-01

Valve stem seal installer

TOOL

TOOL NUMBER AND
NAME

SUPERSESSION APPLICATION

D998767

AC204024

SPECIAL TOOLS

TSB Revision

ENGINE MECHANICAL <3.8L ENGINE>

11C-7

MB991454
Engine hanger balancer

MZ203827-01

When the engine hanger is used:
Supporting the engine assembly
during removal and installation of
the transaxle assembly
NOTE: Special tool MB991454 is a
part of engine hanger attachment
set MB991453.

MB991895
Engine hanger

Tool not available

MB991928
Engine hanger

A: MB991929

Joint (50)

×2

B: MB991930

Joint (90)

×2

C: MB991931

Joint (140)

×2

D: MB991932

Foot (standard)

×4

E: MB991933

Foot (short)

×2

F: MB991934

Chain and hook
assembly

Tool not available

TOOL

TOOL NUMBER AND
NAME

SUPERSESSION APPLICATION

B991454

MB991895

B991928

A

B

C

D

E

F

SLIDE BRACKET (HI)

ON-VEHICLE SERVICE

TSB Revision

ENGINE MECHANICAL <3.8L ENGINE>

11C-8

ON-VEHICLE SERVICE

DRIVE BELT TENSION CHECK AND
ADJUSTMENT

M1111003100496

Refer to GROUP 00, Maintenance Service

− Drive Belts

(Check Condition)

P.00-45

.

IGNITION TIMING CHECK

M1111001701075

Required Special Tool:
MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: MUT-III USB Cable

• MB991910: MUT-III Main Harness A

1. Before inspection, set the vehicle in the following condition:

• Engine coolant temperature: 80 − 95°C (176 − 203°F)

• Lights and all accessories: OFF

• Transaxle: P range

NOTE: Vehicles for Canada, the headlight, taillight, etc.
remain lit even when the lighting switch is in "OFF" position
but this is no problem for checks.

CAUTION

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
2. Connect scan tool MB991958 to the data link connector.
3. Set the timing light to the power supply line (terminal No. 1)

of the ignition coil No. 1.
NOTE: The power supply line is looped and also longer than
the other ones.

4. Start the engine and run it at idle.
5. Check that the idle speed is approximately 680 r/min.
6. Select scan tool MB991958 actuator test "item number 17".
7. Check that basic ignition timing is within the standard value.

Standard value: 5

° BTDC ± 3°

8. If the basic ignition timing is not within the standard value,

check the following items:

• Diagnostic output

• Timing belt cover and crankshaft position sensor installation

conditions

• Crankshaft sensing blade condition

CAUTION

If the actuator test is not canceled, the forced drive will
continue for 27 minutes. Driving in this state could lead to
engine failure.
9. Press the clear key on scan tool MB991958 (select forced

drive stop mode), and cancel the actuator test.

10.Check that the actual ignition timing is at the standard value.

Standard value: Approximately 10

° BTDC

AC302077
AC305412

AC306958AB

MB991824

MB991910

MB991668

DATA LINK

CONNECTOR

ON-VEHICLE SERVICE

TSB Revision

ENGINE MECHANICAL <3.8L ENGINE>

11C-9

NOTE: Ignition timing fluctuates about

±

7

°

Before Top Dead

Center, even under normal operating condition.
NOTE: It is automatically further advanced by about 5

°

to

10

°

Before Top Dead Center at higher altitudes.

CURB IDLE SPEED CHECK

M1111003501044

Required Special Tool:
MB991958: Scan Tool (MUT-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: MUT-III USB Cable

• MB991910: MUT-III Main Harness A

1. Before inspection, set the vehicle in the following condition:

• Engine coolant temperature: 80 − 95°C (176 − 203°F)

• Lights and all accessories: OFF

• Transmission: P range

NOTE: Vehicles for Canada, the headlight, taillight, etc.
remain lit even when the lighting switch is in "OFF" position
but this is no problem for checks.

CAUTION

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
2. Connect scan tool MB991958 to the data link connector.
3. Check the basic ignition timing.

Standard value: 5

° BTDC ± 3°

4. Start the engine.
5. Run the engine at idle for 2 minutes.
6. Check the idle speed. Select item number 22 and take a

reading of the idle speed.

Curb idle speed: 680

± 100 r/min

NOTE: The idle speed is controlled automatically by the idle
air control system.

7. If the idle speed is outside the standard value, refer to

GROUP 13B, Multiport Fuel Injection (MFI) <3.8L Engine>

−

Multiport Fuel Injection (MFI) Diagnosis

− Symptom Chart

P.13B-38

.

AC302077
AC305412

AC306958AB

MB991824

MB991910

MB991668

DATA LINK

CONNECTOR