Mitsubishi Galant 9G. Manual — part 338

SPECIFICATIONS

TSB Revision

ENGINE MECHANICAL <2.4L ENGINE>

11A-68

SERVICE SPECIFICATIONS

M1111000300758

SEALANTS

M1111000500354

ITEM

STANDARD
VALUE

LIMIT

Drive belt tension

Vibration frequency Hz
(Reference)

120

− 154

−

Tension N (Reference)

340

− 562

−

Valve clearance (at hot) mm (in)
<Vehicles Except For California Emission
Regulation>

Intake valve

0.20 (0.008)

−

Exhaust valve

0.30 (0.012)

−

Valve clearance (at hot) mm (in)
<Vehicles For California Emission
Regulation>

Intake valve

0.20 (0.008)

−

Exhaust valve

0.30 (0.012)

−

Actual ignition timing at idle

Approximately
10

° BTDC

−

Basic ignition timing at idle

5

°BTDC ± 3°

−

CO content%

0.5 or less

−

HC contents ppm

100 or less

−

Curb idle speed r/min

700

± 100

−

Compression pressure (250

− 400 r/min) kPa (psi)

1,560 (226)

Minimum 1,130
(164)

Intake manifold vacuum at curb idle kPa (in Hg)

−

Minimum 60
(18)

Cylinder block heater unit internal resistance

Ω

28

− 40

−

Cylinder head bolt nominal length mm (in)

−

99.4 (3.91)

Balancer timing belt tension (When
adjusted)

Deflection mm (in)

5

− 7 (0.20 −

0.27)

−

Balancer timing belt tension (When
replaced)

Deflection mm (in)

5

− 7 (0.20 −

0.27)

−

Balancer timing belt tension (When
checked)

Deflection mm (in)

5

− 10 (0.20 −

0.39)

−

Timing belt tensioner adjuster rod protrusion amount mm (in)

3.8

− 4.5 (0.15 −

0.17)

−

Timing belt tensioner adjuster rod movement mm (in)

Within 1 (0.039) −

ITEM

SPECIFIED SEALANT

Camshaft position sensor support

3M

 AAD Part No.8672, 3M AAD Part No.8679/8678 or

equivalent

Engine oil pressure switch
Engine oil pan

3M

 AAD Part No.8672, 8704, 3M AAD Part No.8679/8678 or

equivalent

14-1

GROUP 14

ENGINE COOLING

CONTENTS

GENERAL DESCRIPTION. . . . . . . . .

14-2

SPECIAL TOOL. . . . . . . . . . . . . . . . .

14-3

ENGINE COOLING DIAGNOSIS. . . .

14-3

INTRODUCTION. . . . . . . . . . . . . . . . . . . . .

14-3

TROUBLESHOOTING STRATEGY . . . . . .

14-3

SYMPTOM CHART. . . . . . . . . . . . . . . . . . .

14-3

SYMPTOM PROCEDURES . . . . . . . . . . . .

14-4

ON-VEHICLE SERVICE. . . . . . . . . . .

14-6

ENGINE COOLANT LEAK CHECK . . . . . .

14-6

RADIATOR CAP PRESSURE CHECK. . . .

14-6

ENGINE COOLANT REPLACEMENT . . . .

14-7

ENGINE COOLANT CONCENTRATION TEST

14-8

FAN CONTROL RELAY CONTINUITY CHECK

14-9

RADIATOR FAN RELAY CHECK . . . . . . . .

14-9

RADIATOR FAN MOTOR CHECK . . . . . . .

14-10

RADIATOR. . . . . . . . . . . . . . . . . . . . .

14-11

REMOVAL AND INSTALLATION . . . . . . . .

14-11

THERMOSTAT . . . . . . . . . . . . . . . . . .

14-15

REMOVAL AND INSTALLATION . . . . . . . .

14-15

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

14-18

WATER PUMP . . . . . . . . . . . . . . . . . .

14-19

REMOVAL AND INSTALLATION
<2.4L ENGINE>. . . . . . . . . . . . . . . . . . . . . .

14-19

REMOVAL AND INSTALLATION
<3.8L ENGINE>. . . . . . . . . . . . . . . . . . . . . .

14-20

WATER HOSE AND WATER PIPE . .

14-22

REMOVAL AND INSTALLATION
<2.4L ENGINE>. . . . . . . . . . . . . . . . . . . . . .

14-22

REMOVAL AND INSTALLATION
<3.8L ENGINE>. . . . . . . . . . . . . . . . . . . . . .

14-24

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

14-26

SPECIFICATIONS . . . . . . . . . . . . . . .

14-27

FASTENER TIGHTENING
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . .

14-27

SERVICE SPECIFICATION . . . . . . . . . . . .

14-28

CAPACITIES . . . . . . . . . . . . . . . . . . . . . . . .

14-28

SEALANTS . . . . . . . . . . . . . . . . . . . . . . . . .

14-28

GENERAL DESCRIPTION

TSB Revision

ENGINE COOLING

14-2

GENERAL DESCRIPTION

M1141000100401

• The cooling system is designed to keep every

part of the engine at appropriate temperature in
whatever condition the engine may be operated.
The cooling method is of the water-cooled, pres-
sure forced circulation type in which the water
pump pressurizes coolant and circulates it
throughout the engine. If the coolant temperature
exceeds the prescribed temperature, the thermo-
stat opens to circulate the coolant through the

radiator as well so that the heat absorbed by the
coolant may be radiated into the air. The water
pump is of the centrifugal type and is driven by
the drive belt from the crankshaft. The radiator is
the corrugated fin, down flow type.

• PremAir direct ozone reduction (DOR) radiator

has been adopted to vehicle for California emis-
sion regulation. A catalyst which depollutes
ozone (O

3

) in the air has been insufflated to the

radiator core. <2.4L Engine>

CONSTRUCTION DIAGRAM

AC305835

RADIATOR

RADIATOR CONDENSER
TANK ASSEMBLY

RADIATOR FAN MOTOR

AB

COOLING FAN SHROUD

<2.4L ENGINE>

CONDENSER FAN MOTOR

AC305836

RADIATOR

RADIATOR CONDENSER
TANK ASSEMBLY

RADIATOR FAN MOTOR

CONDENSER FAN
MOTOR AND SHROUD

TRANSMISSION FLUID
COOLER LINE HOSE

COOLING FAN SHROUD

AB

<3.8L ENGINE>

SPECIAL TOOL

TSB Revision

ENGINE COOLING

14-3

SPECIAL TOOL

M1141000600279

ENGINE COOLING DIAGNOSIS

INTRODUCTION

M1141005300347

The system cools the engine so that it does not over-
heat and maintains the engine at an optimum tem-
perature. The system components are the radiator,
water pump, thermostat, condenser fan assembly.
Possible faults include low coolant, contamination,
belt loosening and component damage.

TROUBLESHOOTING STRATEGY

M1141005200340

Use these steps to plan your diagnostic strategy. If
you follow them carefully, you will be sure to find
most of the engine cooling faults.
1. Gather information from the customer.

2. Verify that the condition described by the

customer exists.

3. Find and repair the malfunction by following the

SYMPTOM CHART.

4. Verify that the malfunction is eliminated.

SYMPTOM CHART

M1141005600393

TOOL

TOOL NUMBER AND
NAME

SUPERSESSION

APPLICATION

MB991871
LLC changer

General service tool

Coolant refilling

MB991871

SYMPTOM

INSPECTION
PROCEDURE

REFERENCE
PAGE

Coolant Leak

1

P.14-4

Engine Overheating

2

P.14-4