lc.pdf

COOLING SYSTEMS

SECTION LC

CONTENTS

COMPONENTS .......................................................17

CONTROL SYSTEM ................................................18

Changing Engine Coolant. .........................................18

- DRAINING ENGINE COOLANT - ............................18

- REFILLING ENGINE COOLANT - ...........................19

- FLUSHING COOLING SYSTEM - ............................20

Radiator (Aluminum type) ..........................................21

PREPARATION .......................................................21

DISASSEMBLY ........................................................21

ASSEMBLY .............................................................22

INSPECTION ...........................................................23

Overheating Cause Analysis .....................................24

Service Data and Specifications (SDS) .....................25

THERMOSTAT ........................................................25

RADIATOR ..............................................................25

COOLANT CAPACITY ..............................................25

ENGINE LUBRICATION SYSTEM ..................................3

Precautions ..................................................................3

LIQUID GASKET APPLICATION PROCEDURE ............3

Preparation ..................................................................3

SPECIAL SERVICE TOOLS ........................................3

Lubrication Circuit ........................................................4

Oil Pressure Check. .....................................................5

Oil Pump ......................................................................5

REMOVAL AND INSTALLATION .................................5

DISASSEMBLY AND ASSEMBLY . ...............................6

INSPECTION .............................................................7

REGULATOR VALVE INSPECTION ............................8

Changing Engine Oil ....................................................8

Changing Oil Filter .......................................................9

Service Data and Specifications (SDS) .....................10

OIL PRESSURE CHECK ..........................................10

OIL PUMP INSPECTION ..........................................10

REGULATOR VALVE INSPECTION ..........................10

OIL CAPACITY ........................................................10

ENGINE COOLING SYSTEM ........................................ 11

Precautions ................................................................ 11

LIQUID GASKET APPLICATION PROCEDURE .......... 11

Preparation ................................................................ 11

SPECIAL SERVICE TOOLS ...................................... 11

Cooling Circuit ...........................................................12

System Check. ...........................................................12

CHECKING COOLING SYSTEM HOSES ...................12

CHECKING RADIATOR ............................................13

CHECKING RADIATOR CAP ....................................13

CHECKING COOLING SYSTEM FOR LEAKS ............13

Water Pump ...............................................................14

REMOVAL AND INSTALLATION ...............................14

INSPECTION ...........................................................14

Thermostat .................................................................15

REMOVAL AND INSTALLATION ...............................15

INSPECTION ...........................................................16

Radiator .....................................................................16

COMPONENTS .......................................................16

Cooling Fan ...............................................................17

ENGINE LUBRICATION SYSTEM ................................26

Precautions ................................................................26

LIQUID GASKET APPLICATION PROCEDURE ..........26

Preparation ................................................................26

SPECIAL SERVICE TOOLS ......................................26

Lubrication Circuit ......................................................27

Oil Pressure Check ....................................................28

Oil Pump ....................................................................28

REMOVAL AND INSTALLATION ...............................28

DISASSEMBLY AND ASSEMBLY ..............................29

OIL PUMP INSPECTION ..........................................29

REGULATOR VALVE INSPECTION ..........................30

Changing Engine Oil. .................................................31

Oil Filter Bracket ........................................................32

REMOVAL AND INSTALLATION ...............................32

Changing Oil Filter .....................................................32

REMOVAL ...............................................................33

INSTALLATION . .......................................................33

Oil Cooler ...................................................................34

REMOVAL AND INSTALLATION ...............................34

Service Data and Specifications (SDS) .....................35

OIL PRESSURE CHECK ..........................................35

ENGINE LUBRICATION &

CONTENTS (Cont’d)

REGULATOR VALVE INSPECTION ..........................35

OIL PUMP INSPECTION ..........................................35

ENGINE OIL CAPACITY ...........................................35

ENGINE COOLING SYSTEM ........................................36

Precautions ................................................................36

LIQUID GASKET APPLICATION PROCEDURE ..........36

Preparation ................................................................36

SPECIAL SERVICE TOOLS ......................................36

Cooling Circuit ...........................................................37

System Check. ...........................................................38

CHECKING COOLING SYSTEM HOSES ...................38

CHECKING RADIATOR ............................................38

CHECKING RADIATOR CAP ....................................38

CHECKING COOLING SYSTEM FOR LEAKS ............39

Water Pump ...............................................................39

REMOVAL AND INSTALLATION ...............................39

REMOVAL ...............................................................40

INSPECTION ...........................................................40

INSTALLATION ........................................................40

Thermostat .................................................................41

REMOVAL AND INSTALLATION ...............................41

INSPECTION ...........................................................42

Radiator .....................................................................42

COMPONENTS .......................................................42

REMOVAL AND INSTALLATION ...............................43

Cooling Fan ...............................................................43

COMPONENTS .......................................................43

CONTROL SYSTEM ................................................43

Changing Engine Coolant. .........................................44

- DRAINING ENGINE COOLANT - ............................44

- REFILLING ENGINE COOLANT - ...........................45

- FLUSHING COOLING SYSTEM - ............................46

Radiator (Aluminum type) ..........................................47

Overheating Cause Analysis .....................................47

Service Data and Specifications (SDS) .....................48

THERMOSTAT ........................................................48

RADIATOR ..............................................................48

ENGINE COOLANT CAPACITY ................................48

LC-2

ENGINE LUBRICATION SYSTEM

Precautions

SEM164F

Precautions

LIQUID GASKET APPLICATION PROCEDURE NJLC0001

1. Use a scraper to remove all traces of old liquid gasket from

mating surfaces and grooves. Also, completely clean any oil

from these areas.

2. Apply a continuous bead of liquid gasket to mating surfaces.

(Use Genuine Liquid Gasket or equivalent.)

+ For oil pan, be sure liquid gasket diameter is 3.5 to 4.5 mm

(0.138 to 0.177 in).

+ For areas except oil pan, be sure liquid gasket diameter is 2.0

to 3.0 mm (0.079 to 0.118 in).

3. Apply liquid gasket around the inner side of bolt holes (unless

otherwise specified).

4. Assembly should be done within 5 minutes after coating.

5. Wait at least 30 minutes before refilling engine oil and engine

coolant.

AEM080

Preparation

SPECIAL SERVICE TOOLS

NJLC0002

Tool number

Tool name

Description

ST25051001

Oil pressure gauge

Measuring oil pressure

NT050

ST25052000

Hose

Adapting oil pressure gauge to cylinder block

NT559

KV10115801

Oil filter wrench

Removing oil filter

NT772

WS39930000

Tube presser

Pressing the tube of liquid gasket

NT052

LC-3

ENGINE LUBRICATION SYSTEM

Lubrication Circuit

NJLC0003

SEM852FB

SLC339B

LC-4

ENGINE LUBRICATION SYSTEM

Oil Pressure Check

NJLC0004

WARNING:

+ Be careful not to burn yourself, as the engine and oil may

be hot.

+ For M/T models, put gearshift lever in Neutral “N” posi-

tion. For A/T models, put selector lever in Park “P” posi-

tion.

1. Check oil level.

2. Remove oil pressure switch.

SEM853F

3. Install pressure gauge.

4. Start engine and warm it up to normal operating temperature.

5. Check oil pressure with engine running under no-load.

For Sedan

Engine speed

rpm

Approximate discharge pressure

kPa (bar, kg/cm 2 , psi)

600

More than 69 (0.69, 0.7, 10)

2,000

More than 284 (2.84, 2.9, 41)

SLC926-A

6,000

More than 422 (4.22, 4.3, 61)

For Hatchback

Engine speed

rpm

Approximate discharge pressure

kPa (bar, kg/cm 2 , psi)

600

More than 98 (0.98, 1.0, 14)

2,000

More than 294 (2.94, 3.0, 43)

6,000

More than 392 (3.92, 4.0, 57)

+ If difference is extreme, check oil passage and oil pump

for oil leaks.

6. Install oil pressure switch with sealant.

: 13 - 17 N·m (1.25 - 1.75 kg-m,9-12ft-lb)

Oil Pump

REMOVAL AND INSTALLATION

NJLC0005

+ Make sure that O-ring is fitted properly.

1. Drain engine oil.

2. Remove drive belts.

3. Remove oil pan. Refer to EM-20, “OIL PAN”.

4. Remove oil strainer.

5. Remove front cover. Refer to EM-23, “TIMING CHAIN”.

6. Install front cover.

7. Reinstall parts in reverse order of removal.

LC-5

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