Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Quest 2004-2009 Approved Nissan Quest 2008 EM

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ENGINE

SECTION
ENGINE MECHANICAL
EM EM

E
CONTENTS
SERVICE INFORMATION ........................... 3
. EXHAUST MANIFOLD AND THREE WAY F
CATALYST ........................................................ 25
PRECAUTIONS .................................................. 3
. Removal and Installation ........................................25
.
Precaution for Supplemental Restraint System G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- OIL PAN AND OIL STRAINER ......................... 29
SIONER" .................................................................. 3
. Removal and Installation ........................................29
.
Precaution for Drain Coolant .................................... 3 .
IGNITION COIL ................................................. 35 H
Precaution for Disconnecting Fuel Piping ................ 3 .
Precaution for Removal and Disassembly ............... 3 . Removal and Installation ........................................35
.
Precaution for Inspection, Repair and Replace-
SPARK PLUG ................................................... 36 I
ment ......................................................................... 3
.
Removal and Installation ........................................36
.
Precaution for Assembly and Installation ................. 3 .
Parts Requiring Angular Tightening ......................... 4 . FUEL INJECTOR AND FUEL TUBE ................ 38
Precaution for Liquid Gasket .................................... 4 . Removal and Installation ........................................38
. J
PREPARATION .................................................. 6
. ROCKER COVER ............................................. 41
Special Service Tool ................................................ 6
. Removal and Installation ........................................41
.
Commercial Service Tool ......................................... 8
. K
FRONT TIMING CHAIN CASE ......................... 43
NOISE, VIBRATION, AND HARSHNESS Removal and Installation ........................................43
.
(NVH) TROUBLESHOOTING ...........................10
. L
NVH Troubleshooting - Engine Noise .................... 10 . TIMING CHAIN .................................................. 54
Use the Chart Below to Help You Find the Cause Removal and Installation ........................................54
.
of the Symptom ...................................................... 10
.
CAMSHAFT ....................................................... 76 M
DRIVE BELTS ...................................................12
. Removal and Installation ........................................76
.
Checking Drive Belts .............................................. 12
. Inspection After Installation ....................................84
.
Tension Adjustment ............................................... 12
. Valve Clearance .....................................................85
. N
Removal and Installation ........................................ 14
.
OIL SEAL .......................................................... 90
AIR CLEANER AND AIR DUCT .......................15
. Removal and Installation of Valve Oil Seal .............90
.
Removal and Installation ........................................ 15
. Removal and Installation of Front Oil Seal .............90
. O
Removal and Installation of Rear Oil Seal ..............92
.
INTAKE MANIFOLD COLLECTOR ..................17
.
Removal and Installation ........................................ 17
. CYLINDER HEAD ............................................. 94 P
On-Vehicle Service .................................................94
.
EGR VOLUME CONTROL VALVE ...................21
. Removal and Installation ........................................95
.
Removal and Installation ........................................ 21
. Disassembly and Assembly .................................. 103 .
Inspection After Disassembly ............................... 104.
INTAKE MANIFOLD ..........................................23
.
Removal and Installation ........................................ 23
. ENGINE ASSEMBLY ...................................... 110
Removal and Installation ...................................... 110
.

Revision: August 2007 EM-1 2008 Quest
CYLINDER BLOCK ........................................ 116
. SERVICE DATA AND SPECIFICATIONS
Disassembly and Assembly ..................................116
. (SDS) ............................................................... 142
.
How to Select Piston and Bearing ........................127
. Standard and Limit ............................................... 142
.
Inspection After Disassembly ...............................131
.

Revision: August 2007 EM-2 2008 Quest
PRECAUTIONS
< SERVICE INFORMATION >
SERVICE INFORMATION A
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT EM
PRE-TENSIONER" INFOID:0000000001717763

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along C
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. D
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING: E

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