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B ENGINE

ENGINE LUBRICATION SYSTEM
SECTION LU LU

E
CONTENTS
PRECAUTIONS ......................................................... 2. OIL COOLER ........................................................... 12
. F
Precautions for Supplemental Restraint System Removal and Installation ....................................... 12 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- REMOVAL .......................................................... 12
.
SIONER" ................................................................. 2
. INSPECTION AFTER REMOVAL ...................... 12 . G
Precautions for Liquid Gasket ................................. 2 . INSTALLATION .................................................. 13 .
REMOVAL OF LIQUID GASKET SEALING ......... 2 . INSPECTION AFTER INSTALLATION ............... 13 .
LIQUID GASKET APPLICATION PROCEDURE 2 ..... OIL PUMP ................................................................ 14
.
H
PREPARATION .......................................................... 4
. Removal and Installation ....................................... 14 .
Special Service Tools .............................................. 4. REMOVAL .......................................................... 14
.
Commercial Service Tool ........................................ 5 . INSTALLATION .................................................. 14 .
LUBRICATION SYSTEM ........................................... 6 . INSPECTION AFTER INSTALLATION ............... 15 . I
Lubrication Circuit ................................................... 6
. Disassembly and Assembly ................................... 15 .
System Drawing ...................................................... 7
. DISASSEMBLY .................................................. 15 .
ENGINE OIL .............................................................. 8
. INSPECTION AFTER DISASSEMBLY ............... 15 . J
Inspection ................................................................ 8
. ASSEMBLY ........................................................ 16
.
OIL LEVEL ........................................................... 8
. SERVICE DATA AND SPECIFICATIONS (SDS) ..... 17 .
OIL APPEARANCE .............................................. 8 . Standard and Limit ................................................. 17
.
K
OIL LEAKAGE ...................................................... 8. OIL PRESSURE ................................................. 17 .
OIL PRESSURE CHECK ..................................... 8 . OIL PUMP .......................................................... 17
.
CHANGING ENGINE OIL ....................................... 9 . REGULATOR VALVE ......................................... 17 .
OIL FILTER ...............................................................11
. ENGINE OIL CAPACITY (APPROXIMATE) ....... 17 . L
Removal and Installation ........................................11 .
REMOVAL ...........................................................11
.
INSTALLATION ...................................................11 . M
INSPECTION AFTER INSTALLATION ...............11 .

Revision: October 2006 LU-1 2006 Armada
PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EBS00RJM

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
G To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
G Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
G Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Liquid Gasket EBS00NIO

REMOVAL OF LIQUID GASKET SEALING
G After removing the bolts and nuts, separate the mating surface
and remove the old liquid gasket sealing using Tool.
Tool number : KV10111100 (J-37228)
CAUTION:
Do not damage the mating surfaces.
G Tap the seal cutter to insert it.
G In areas where the Tool is difficult to use, lightly tap to slide it.

WBIA0566E

LIQUID GASKET APPLICATION PROCEDURE
1. Remove the old liquid gasket adhering to the gasket application
surface and the mating surface using suitable tool.
G Remove the liquid gasket completely from the groove of the
liquid gasket application surface, bolts, and bolt holes.
2. Thoroughly clean the mating surfaces and remove adhering
moisture, grease and foreign material.

PBIC0003E

Revision: October 2006 LU-2 2006 Armada
PRECAUTIONS

3. Attach the liquid gasket tube to the Tool.
Tool number : WS39930000 ( -- ) A

Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-45, "Recommended Chemical Products and Sealants" .
LU
4. Apply the liquid gasket without breaks to the specified location
with the specified dimensions.
C

WBIA0567E

D
G If there is a groove for the liquid gasket application, apply the
liquid gasket to the groove.
G As for the bolt holes, normally apply the liquid gasket inside E
the holes. If specified in the procedure, it should also be
applied outside the holes.
G Within five minutes of liquid gasket application, install the mat- F
ing component.
G If the liquid gasket protrudes, wipe it off immediately.

G Do not retighten after the installation. G
G Wait 30 minutes or more after installation before refilling the SEM159F
engine with engine oil and engine coolant.
CAUTION: H
If there are specific instructions in this manual, observe them.

Revision: October 2006 LU-3 2006 Armada
PREPARATION

PREPARATION PFP:00002

Special Service Tools EBS00L4V

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number Description
(Kent-Moore No.)
Tool name
ST25051001 Measuring oil pressure
(J-25695-1) Maximum measuring range:
Oil pressure gauge 2,452 kPa (25 kg/cm2 , 356 psi)

S-NT050

ST25052000 Adapting oil pressure gauge to cylinder block
(J-25695-2)
Hose

S-NT559

KV10111100 Removing steel oil pan and rear timing chain
(J-37228) case
Seal cutter

NT046

KV10115801 Removing and installing oil filter
(J-38956) a: 64.3 mm (2.531 in)
Oil filter wrench

S-NT375

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

S-NT052

Revision: October 2006 LU-4 2006 Armada
PREPARATION

Commercial Service Tool EBS00L4W

A
Tool name Description
Power tool Loosening bolts and nuts
LU

C
PBIC0190E

Deep socket Removing and installing oil pressure switch
Deep socket 26 mm D

NT818
F

Revision: October 2006 LU-5 2006 Armada
LUBRICATION SYSTEM

LUBRICATION SYSTEM PFP:15010

Lubrication Circuit EBS00L4X

WBIA0399E

1. Exhaust camshaft 2. Intake camshaft 3. Main oil galley
4. Chain tensioner (Left bank) 5. Oil filter 6. Oil cooler
7. Oil pan 8. Oil strainer 9. Oil pump
10. Chain tensioner (Right bank)

Revision: October 2006 LU-6 2006 Armada
LUBRICATION SYSTEM

System Drawing EBS00L4Y

J
PBIC1901E

Revision: October 2006 LU-7 2006 Armada
ENGINE OIL

ENGINE OIL PFP:KLA92

Inspection EBS00L4Z

OIL LEVEL
G Before starting the engine make sure the vehicle is parked on a
flat and level surface, then check the oil level. If the engine is
already running, turn it off and allow 10 minutes before check-
ing.
G Check that the oil level is within the low (L) and high (H) range
as indicated on the dipstick.
G If the engine oil level is out of range, add oil as necessary. Refer
to MA-11, "Fluids and Lubricants" .

SMA954C

OIL APPEARANCE
G Check the engine oil for a white milky appearance or excessive contamination.
G If the engine oil is milky, it is highly probable that it is contaminated with engine coolant. Repair the broken
parts.
OIL LEAKAGE
Check for oil leakage around the following areas:
G Oil pan
G Oil pan drain plug
G Oil pressure sensor
G Oil filter
G Oil cooler
G Intake valve timing control cover
G Intake valve timing control solenoid valve
G Front cover
G Mating surface between cylinder block and cylinder head
G Mating surface between cylinder head and rocker cover
G Crankshaft oil seal (front and rear)
OIL PRESSURE CHECK
WARNING:
G Be careful not to burn yourself, as engine oil may be hot.
G Put the selector lever in the Park "P" position.
1. Check the engine oil level. Refer to LU-8, "OIL LEVEL" .
2. Remove engine front undercover using power tool.
3. Disconnect the oil pressure sensor harness connector.
4. Remove the oil pressure sensor.

WBIA0538E

Revision: October 2006 LU-8 2006 Armada
ENGINE OIL

5. Install Tools.
Tool number : ST25051001 (J-25695-1) A
: ST25052000 (J-25695-2)
LU

WBIA0571E

D
6. Start the engine and warm it up to normal operating temperature.
7. Check the engine oil pressure with engine running under no-load.
Engine oil pressure [Engine oil temperature at 80

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