Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Altima 2006-2009 Approved TB Nissan Altima 2009 EM
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ENGINE
EM
A
EM
SECTION
ENGINE MECHANICAL C
D
E
CONTENTS
QR25DE Removal and Installation of Drive Belt Auto-ten- F
sioner ......................................................................17
.
PRECAUTION .............................................. 4
.
AIR CLEANER FILTER ..................................... 19
G
PRECAUTIONS .................................................. 4
. Removal and Installation ........................................19
.
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- CAMSHAFT VALVE CLEARANCE .................. 20
SIONER" .................................................................. 4
. Camshaft valve clearance ......................................20
. H
Necessary for Steering Wheel Rotation After Bat-
COMPRESSION PRESSURE ........................... 23
tery Disconnect ........................................................ 4
.
Compression pressure ...........................................23
.
Precaution for Draining Coolant ............................... 4 . I
Precaution for Disconnecting Fuel Piping ................ 4 . ON-VEHICLE REPAIR ................................ 25
.
Precaution for Removal and Disassembly ............... 5 .
Precaution for Inspection, Repair and Replace- AIR CLEANER AND AIR DUCT ....................... 25 J
ment ......................................................................... 5
. Removal and Installation ........................................25
.
Precaution for Assembly and Installation ................. 5 .
Parts Requiring Angular Tightening ......................... 5 . INTAKE MANIFOLD ......................................... 26
Precaution for Liquid Gasket .................................... 5 . Removal and Installation ........................................26
. K
PREPARATION ........................................... 7
. EXHAUST MANIFOLD AND THREE WAY
CATALYST ........................................................ 30 L
PREPARATION .................................................. 7
. Removal and Installation ........................................30
.
Special Service Tool ................................................ 7
.
Commercial Service Tool ......................................... 9
. OIL PAN AND OIL STRAINER ......................... 32
Removal and Installation ........................................32
. M
FUNCTION DIAGNOSIS ............................. 12
.
IGNITION COIL ................................................. 35
NOISE, VIBRATION, AND HARSHNESS Removal and Installation ........................................35
.
N
(NVH) TROUBLESHOOTING ...........................12
.
NVH Troubleshooting - Engine Noise .................... 12 . FUEL INJECTOR AND FUEL TUBE ................ 36
Use the Chart Below to Help You Find the Cause Removal and Installation ........................................36
.
of the Symptom ...................................................... 13
. O
ROCKER COVER ............................................. 39
ON-VEHICLE MAINTENANCE ................... 14
. Removal and Installation ........................................39
.
CAMSHAFT ....................................................... 41 P
SPARK PLUG ...................................................14
.
Removal and Installation ........................................41
.
Removal and Installation ........................................ 14
.
Inspection After Installation ....................................48
.
DRIVE BELTS ...................................................16
. Valve Clearance .....................................................49
.
Checking Drive Belts .............................................. 16
.
Tension Adjustment ............................................... 16
.
TIMING CHAIN .................................................. 52
Removal and Installation ........................................52
.
Removal and Installation ........................................ 16
.
Revision: July 2008 EM-1 2009 Altima
OIL SEAL .......................................................... 61
. Use the Chart Below to Help You Find the Cause
Removal and Installation of Valve Oil Seal ............ 61
. of the Symptom .................................................... 118
.
Removal and Installation of Front Oil Seal ............ 61
.
Removal and Installation of Rear Oil Seal ............. 62
. ON-VEHICLE MAINTENANCE ................. 119
CYLINDER HEAD ............................................. 64
. SPARK PLUG .................................................. 119
.
Removal and Installation ....................................... 64
. Removal and Installation ...................................... 119
.
Disassembly and Assembly ................................... 66
.
DRIVE BELTS ................................................. 121
.
Inspection After Disassembly ................................ 68
.
Checking Drive Belts ............................................ 121 .
REMOVAL AND INSTALLATION .............. 72
. Tension Adjustment ............................................. 121 .
Removal and Installation ...................................... 121 .
ENGINE ASSEMBLY ........................................ 72
. Removal and Installation of Drive Belt Auto-ten-
Removal and Installation ....................................... 72
. sioner ................................................................... 122
.
DISASSEMBLY AND ASSEMBLY ............ 76
. AIR CLEANER FILTER ................................... 123
.
Removal and Installation ...................................... 123
.
CYLINDER BLOCK .......................................... 76
.
Disassembly and Assembly ................................... 76
. CAMSHAFT VALVE CLEARANCE ................ 124
.
Inspection After Disassembly ................................ 83
. Valve Clearance ................................................... 124
.
HOW TO SELECT PISTON AND BEARING .... 93
. COMPRESSION PRESSURE ......................... 128
.
How to Select Piston and Bearing ......................... 93
. On-Vehicle Service .............................................. 128
.
SERVICE DATA AND SPECIFICATIONS ON-VEHICLE REPAIR .............................. 129
(SDS) .......................................................... 99
. AIR CLEANER AND AIR DUCT ...................... 129
.
SERVICE DATA AND SPECIFICATIONS Removal and Installation ...................................... 129
.
(SDS) ................................................................. 99
. INTAKE MANIFOLD COLLECTOR ................ 130
.
Standard and Limit ................................................ 99
. Removal and Installation ...................................... 130
.
VQ35DE
INTAKE MANIFOLD ........................................ 133
.
PRECAUTION ........................................... 110
. Removal and Installation ...................................... 133
.
PRECAUTIONS .............................................. 110
. EXHAUST MANIFOLD AND THREE WAY
Precaution for Supplemental Restraint System CATALYST ...................................................... 136
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Removal and Installation ...................................... 136
.
SIONER" ...............................................................110
.
Necessary for Steering Wheel Rotation After Bat- OIL PAN AND OIL STRAINER ....................... 139
.
tery Disconnect .....................................................110 . Removal and Installation ...................................... 139
.
Precaution for Drain Coolant ................................110 .
Precaution for Disconnecting Fuel Piping .............110 . IGNITION COIL ................................................ 145
.
Precaution for Removal and Disassembly ............111 . Exploded View ..................................................... 145
.
Precaution for Inspection, Repair and Replace- Removal and Installation LH ................................ 145 .
ment ......................................................................111
. Removal and Installation RH ............................... 145 .
Precaution for Assembly and Installation .............111 . FUEL INJECTOR AND FUEL TUBE ............... 146
.
Parts Requiring Angular Tightening ......................111 .
Removal and Installation ...................................... 146
.
Precaution for Liquid Gasket ................................111 .
ROCKER COVER ............................................ 151
.
PREPARATION ......................................... 113
. Exploded View ..................................................... 151
.
PREPARATION .............................................. 113
. Removal and Installation LH ................................ 151 .
Removal and Installation RH ............................... 152 .
Special Service Tool .............................................113
.
Commercial Service Tool .....................................115. FRONT TIMING CHAIN CASE ........................ 155
.
Removal and Installation ...................................... 155
.
FUNCTION DIAGNOSIS ........................... 117
.
TIMING CHAIN ................................................ 162
.
NOISE, VIBRATION, AND HARSHNESS
Component .......................................................... 162.
(NVH) TROUBLESHOOTING ......................... 117
. Removal ............................................................... 163
.
NVH Troubleshooting - Engine Noise ...................117
.
Inspection ............................................................. 166
.
Installation ............................................................ 166
.
Revision: July 2008 EM-2 2009 Altima
REAR TIMING CHAIN CASE .......................... 172
. CYLINDER BLOCK ......................................... 206
Component ........................................................... 172
. Disassembly and Assembly .................................. 206 . A
Removal and Installation ...................................... 173. Inspection ............................................................. 216
.
Dowel Pin Alignment ............................................ 226 .
CAMSHAFT ..................................................... 177
.
EM
Removal and Installation ...................................... 177
. SERVICE DATA AND SPECIFICATIONS
Inspection after Installation .................................. 185
. (SDS) ......................................................... 228
.
OIL SEAL ........................................................ 187
. SERVICE DATA AND SPECIFICATIONS C
Removal and Installation of Valve Oil Seal .......... 187
. (SDS) ............................................................... 228
Removal and Installation of Front Oil Seal ........... 187
. General Specification ........................................... 228 .
Removal and Installation of Rear Oil Seal ........... 189
. Drive Belt .............................................................. 228
. D
CYLINDER HEAD ........................................... 191
. Spark Plug ............................................................ 229
.
Intake Manifold ..................................................... 229
.
Removal and Installation ...................................... 191
.
Exhaust Manifold ................................................. 229 . E
Disassembly and Assembly ................................. 195
.
Camshaft .............................................................. 229
.
Inspection After Disassembly ............................... 197
.
Cylinder Head ...................................................... 231
.
REMOVAL AND INSTALLATION ............ 202
. Cylinder Block ...................................................... 234
.
Main Bearing ........................................................ 237
. F
ENGINE ASSEMBLY ...................................... 202
. Connecting Rod Bearing ..................................... 238 .
Removal and Installation ...................................... 202
. Drive Plate ............................................................ 239
.
Flywheel ............................................................... 239
. G
DISASSEMBLY AND ASSEMBLY ........... 206
.
H
I
J
K
L
M
N
O
P
Revision: July 2008 EM-3 2009 Altima
PRECAUTIONS
< PRECAUTION > [QR25DE]
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER" INFOID:0000000004202095
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 SR and SB section of this Service Man-
ual.
WARNING:
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