Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti Q45 FY33 F50 2001-2006 Approved 2003_Q45 lu

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ENGINE LUBRICATION SYSTEM

B ENGINE

LU
SECTION
ENGINE LUBRICATION SYSTEM C

E
CONTENTS
PRECAUTIONS ......................................................... 2. OIL FILTER ................................................................ 8
. F
Precautions for Liquid Gasket ................................. 2 . Removal and Installation ......................................... 8 .
REMOVAL OF LIQUID GASKET SEALING ......... 2 . REMOVAL ............................................................ 8
.
LIQUID GASKET APPLICATION PROCEDURE 2 ..... INSTALLATION .................................................... 8. G
PREPARATION .......................................................... 3
. INSPECTION AFTER INSTALLATION ................. 8 .
Special Service Tools .............................................. 3. OIL PUMP .................................................................. 9
.
Commercial Service Tools ....................................... 3 . Removal and Installation ......................................... 9 .
H
LUBRICATION SYSTEM ........................................... 4 . REMOVAL ............................................................ 9
.
Lubrication Circuit ................................................... 4
. INSTALLATION .................................................... 9.
System Drawing ...................................................... 5
. Disassembly and Assembly ................................... 10 .
ENGINE OIL .............................................................. 6
. DISASSEMBLY .................................................. 10 . I
Inspection ................................................................ 6
. INSPECTION AFTER DISASSEMBLY ............... 10 .
ENGINE OIL LEVEL ............................................ 6 . ASSEMBLY ........................................................ 11
.
ENGINE OIL APPEARANCE ............................... 6 . SERVICE DATA AND SPECIFICATIONS (SDS) ..... 12 . J
ENGINE OIL LEAKAGE ....................................... 6 . Standard and Limit ................................................. 12
.
OIL PRESSURE CHECK ..................................... 6 . OIL PRESSURE ................................................. 12 .
Changing Engine Oil ............................................... 7 . OIL PUMP .......................................................... 12
.
K
REGULATOR VALVE ......................................... 12 .
ENGINE OIL CAPACITY .................................... 12 .
Tightening Torque .................................................. 12
.
L

Revision; 2004 April LU-1 2003 Q45
PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions for Liquid Gasket EBS0024R

REMOVAL OF LIQUID GASKET SEALING
q After removing the mounting bolts and nuts, separate the mating
surface using a seal cutter and remove the old liquid gasket
sealing.
CAUTION:
Be careful not to damage the mating surfaces.
q In areas where the cutter is difficult to use, use a plastic hammer
to lightly tap the areas where the liquid gasket is applied.
CAUTION:
If for some unavoidable reason a tool such as a flat-bladed
screwdriver is used, be careful not to damage the mating
surfaces. PBIC0002E

LIQUID GASKET APPLICATION PROCEDURE
1. Using a scraper, remove the old liquid gasket adhering to the liq-
uid gasket application surface and the mating surface.
q Remove the liquid gasket completely from the groove of the
liquid gasket application surface, mounting bolts, and bolt
holes.
2. Wipe the liquid gasket application surface and the mating sur-
face with white gasoline (lighting and heating use) to remove
adhering moisture, grease and foreign materials.
3. Attach genuine liquid gasket tube to the tube presser.
Use Genuine Thread sealant or equivalent. Refer to GI-46,
"RECOMMENDED CHEMICAL PRODUCTS AND SEAL- PBIC0003E

ANTS" .

4. Apply the liquid gasket without breaks to the specified location
with the specified dimensions.
q If there is a groove for the liquid gasket application, apply the
liquid gasket to the groove.

EMA0622D

q As for the bolt holes, normally apply the liquid gasket inside
the holes. Occasionally, it should be applied outside the
holes. Make sure to read the text of this manual.
q Within five minutes of liquid gasket application, install the mat-
ing component.
q If the liquid gasket protrudes, wipe it off immediately.
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.
CAUTION: SEM159F
If there are specific instructions in this manual, observe
them.

Revision; 2004 April LU-2 2003 Q45
PREPARATION

PREPARATION PFP:00002
A
Special Service Tools EBS0024S

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:
Oil pressure gauge 2,452 kPa (25 kg/cm2, 356 psi)

S-NT050

ST25052000 Adapting oil pressure gauge to cylinder block
E
(J25695-2)
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
S-NT052

Commercial Service Tools EBS003GF
L
Tool name Description

Deep socket Removing and installing oil pressure switch M
Deep socket 26 mm (1.02 in)

NT818

Power tool Loosening bolts and nuts

PBIC0190E

Revision; 2004 April LU-3 2003 Q45
LUBRICATION SYSTEM

LUBRICATION SYSTEM PFP:15010

Lubrication Circuit EBS001KC

PBIC1663E

Revision; 2004 April LU-4 2003 Q45
LUBRICATION SYSTEM

System Drawing EBS0024T

L
PBIC1664E

Revision; 2004 April LU-5 2003 Q45
ENGINE OIL

ENGINE OIL PFP:KLA92

Inspection EBS0024U

ENGINE OIL LEVEL
NOTE:
Before starting the engine, check the oil level. If the engine is already started, stop it and allow 15 minutes
before checking.
1. Put vehicle horizontally.
2. Pull out oil level gauge and wipe it clean.
3. Insert oil level gauge and check that the engine oil level is within
the range shown in the figure.
4. If it is out of range, adjust it.

PBIC0801E

ENGINE OIL APPEARANCE
q Check the oil for a white milky appearance or excessive contamination.
q If the oil is milky, it is highly probable that it is contaminated with engine coolant. Repair the broken parts.
ENGINE OIL LEAKAGE
Check for engine oil leakage around the following area.
q Oil pan
q Oil pan drain plug
q Oil pressure switch
q Oil filter
q Intake valve timing control cover
q Front cover
q Mating surface between cylinder block and cylinder head
q Mating surface between cylinder head and rocker cover
q Crank oil seal (front and rear)
OIL PRESSURE CHECK
WARNING:
q Be careful not to burn yourself, as the engine oil is hot.
q Engine oil pressure check should be done in "Parking position".
1. Check the engine oil level. Refer to LU-6, "ENGINE OIL LEVEL"
.
2. Remove the engine undercover with power tool.
3. Remove the oil pressure switch to connect the oil pressure
gauge.
4. After warming up the engine, check that engine oil pressure cor-
responding to the engine speed is produced.
NOTE:
When engine oil temperature is low, the engine oil pressure
becomes high. PBIC0136E

Revision; 2004 April LU-6 2003 Q45
ENGINE OIL

Engine oil pressure [Engine oil temperature at 80

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