Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti G35 2003-2005 Coupe Sedan Approved Infiniti G35 Sedan 2003 lu

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ENGINE LUBRICATION SYSTEM

B ENGINE

LU
SECTION
ENGINE LUBRICATION SYSTEM C

E
CONTENTS
PRECAUTIONS ......................................................... 2. OIL COOLER ........................................................... 10
. F
Precautions for Liquid Gasket ................................. 2 . Removal and Installation ....................................... 10 .
LIQUID GASKET APPLICATION PROCEDURE 2 ..... REMOVAL .......................................................... 10
.
PREPARATION .......................................................... 3
. INSPECTION AFTER REMOVAL ...................... 11 . G
Special Service Tools .............................................. 3. INSTALLATION .................................................. 12 .
Commercial Service Tools ....................................... 3 . INSPECTION AFTER INSTALLATION ............... 12 .
LUBRICATION SYSTEM ........................................... 4 . OIL PUMP ................................................................ 13
.
H
Lubrication Circuit ................................................... 4
. Removal and Installation ....................................... 13 .
System Drawing ...................................................... 5
. REMOVAL .......................................................... 13
.
ENGINE OIL .............................................................. 6
. INSTALLATION .................................................. 13 .
Inspection ................................................................ 6
. INSPECTION AFTER INSTALLATION ............... 13 . I
OIL LEVEL ........................................................... 6
. Disassembly and Assembly ................................... 13 .
ENGINE OIL APPEARANCE ............................... 6 . DISASSEMBLY .................................................. 13 .
ENGINE OIL LEAKAGE ....................................... 6 . INSPECTION AFTER DISASSEMBLY ............... 13 . J
OIL PRESSURE CHECK ..................................... 6 . ASSEMBLY ........................................................ 15
.
Changing Engine Oil ............................................... 8 . SERVICE DATA AND SPECIFICATIONS (SDS) ..... 16 .
OIL FILTER ................................................................ 9
. Standard and Limit ................................................. 16
.
K
Removal and Installation ......................................... 9 . OIL PRESSURE ................................................. 16 .
REMOVAL ............................................................ 9
. OIL PUMP .......................................................... 16
.
INSTALLATION .................................................... 9 . REGULATOR VALVE ......................................... 16 .
INSPECTION AFTER INSTALLATION ................ 9 . OIL CAPACITY (APPROXIMATE) ...................... 16 . L
Tightening Torque .................................................. 16
.

Revision; 2004 April LU-1 2003 G35 Sedan
PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions for Liquid Gasket ABS004S3

LIQUID GASKET APPLICATION PROCEDURE
1. Remove the old liquid gasket adhering to the gasket application surface and the mating surface.
2. Wipe the gasket application surface and the mating surface with white gasoline (lighting and heating use)
to remove adhering moisture, grease and foreign materials.
3. Attach the liquid gasket tube to the tube presser [special service
tool: WS39930000 ( -- )].
Use Genuine Thread Sealant or equivalent. Refer to GI-45,
"RECOMMENDED CHEMICAL PRODUCTS AND SEAL-
ANTS".
4. Apply the liquid gasket without breaks to the specified location
with the specified dimensions.
q Within five minutes of gasket application, install the mating
component.
q If the liquid gasket protrudes, wipe it off immediately.
EMA0622D
q Do not retighten after the installation.

q After 30 minutes or more have passed from the installation, fill the engine oil and engine coolant.

Revision; 2004 April LU-2 2003 G35 Sedan
PREPARATION

PREPARATION PFP:00002
A
Special Service Tools ABS00010

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number LU
(Kent-Moore No.) Description
Tool name

ST25051001 Measuring oil pressure
C
(J25695-1) Maximum measuring range: 2,452 kPa (25
Oil pressure gauge kg/cm2 , 356 psi)

NT050

ST25052000 Adapting oil pressure gauge to upper oil pan
E
(J25695-2) (upper)
Hose
F

S-NT559
G
KV10115801 Removing and installing oil filter
(J38956) a: 64.3 mm (2.531 in)
Oil filter wrench
H

I
S-NT375

WS39930000 Pressing the tube of liquid gasket
( -- )
Tube presser J

K
NT052

L
Commercial Service Tools ABS00011

Tool name Description M
Deep socket Removing and installing oil pressure switch
a: 27 mm (1.06 in)

PBIC2072E

Power tool Loosening nuts and bolts

PBIC0190E

Revision; 2004 April LU-3 2003 G35 Sedan
LUBRICATION SYSTEM

LUBRICATION SYSTEM PFP:15010

Lubrication Circuit ABS00012

PBIC1403E

Revision; 2004 April LU-4 2003 G35 Sedan
LUBRICATION SYSTEM

System Drawing ABS00013

SBIA0534E I

Revision; 2004 April LU-5 2003 G35 Sedan
ENGINE OIL

ENGINE OIL PFP:KLA92

Inspection ABS00014

OIL LEVEL
NOTE:
Before starting engine, put vehicle horizontally and check the engine oil level. If engine is already started, stop
it and allow 10 minutes before checking.
1. Pull out oil level gauge and wipe it clean.
2. Insert oil level gauge and make sure the engine oil level is within
the range shown in the figure.
3. If it is out of range, adjust it.

PBIC0249E

NOTE:
When checking oil level, insert oil level gauge with its tip aligned with
oil level gauge guide on cylinder head. (In figure, air cleaner case
and air duct are removed.)

KBIA1343E

ENGINE OIL APPEARANCE
q Check engine oil for white turbidity or heavy contamination.
q If engine oil becomes turbid and white, it is highly probable that it is contaminated with engine coolant.
Repair or replace damaged parts.
ENGINE OIL LEAKAGE
Check for engine oil leakage around the following areas:
q Oil pan
q Oil pan drain plug
q Oil pressure switch
q Oil filter
q Oil cooler
q Water pump cover
q Chain tensioner cover
q Intake valve timing control cover and intake valve timing control solenoid valve
q Mating surface between cylinder block and cylinder head
q Mating surface between cylinder head and rocker cover
q Mating surface between front timing chain case and rear timing chain case
q Mating surface between rear timing chain case and cylinder block
q Crankshaft oil seals (front and rear)
OIL PRESSURE CHECK
WARNING:
q Be careful not to burn yourself, as engine oil may be hot.
Revision; 2004 April LU-6 2003 G35 Sedan
ENGINE OIL

q Oil pressure check should be done in "Neutral position" (M/T models) or "Parking position" (A/T
models). A
1. Check oil level. Refer to LU-6, "Inspection" .
2. Remove undercover with power tool.
3. Disconnect oil pressure switch harness connector. LU
4. Remove oil pressure switch using deep socket (commercial ser-
vice tool).
CAUTION: C
Do not drop or shock oil pressure switch.

PBIC0818E
E

5. Install oil pressure gauge and hose (special service tool).
F

SLC926

I
6. Start engine and warm it up to normal operating temperature.
7. Check oil pressure with engine running under no-load.
NOTE: J
When engine oil temperature is low, engine oil pressure becomes high.
Engine oil pressure [Engine oil temperature at 80

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