Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Sentra 2006-2009 Approved Nissan Sentra 2009 EM
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ENGINE
A
SECTION
ENGINE MECHANICAL
EM EM
C
D
E
CONTENTS
MR20DE Changing Air Cleaner Filter ....................................17
. F
SERVICE INFORMATION ........................... 3
. INTAKE MANIFOLD ......................................... 18
Component .............................................................18
.
G
PRECAUTIONS .................................................. 3
. Removal and Installation ........................................19.
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- EXHAUST MANIFOLD ...................................... 23
SIONER" .................................................................. 3
. Component .............................................................23
. H
Precaution Necessary for Steering Wheel Rota- Removal and Installation ........................................24.
tion After Battery Disconnect .................................... 3 .
OIL PAN ............................................................ 27
Precaution for Procedure without Cowl Top Cover 4 ...... I
Component .............................................................27
.
Precaution for Drain Coolant .................................... 4 .
Removal and Installation ........................................27.
Precaution for Disconnecting Fuel Piping ................ 4 .
Precaution for Removal and Disassembly ............... 4 . IGNITION COIL, SPARK PLUG AND ROCK- J
Precaution for Inspection, Repair and Replace- ER COVER ........................................................ 33
ment ......................................................................... 4
. Component .............................................................33
.
Precaution for Assembly and Installation ................. 4 . Removal and Installation ........................................33.
Parts Requiring Angular Tightening ......................... 4 . K
Precaution for Liquid Gasket .................................... 5 . FUEL INJECTOR AND FUEL TUBE ................ 36
Component .............................................................36
.
PREPARATION .................................................. 7
. Removal and Installation ........................................36. L
Special Service Tool ................................................ 7
.
Commercial Service Tool ......................................... 9
. TIMING CHAIN .................................................. 40
Component .............................................................40
.
NOISE, VIBRATION AND HARSHNESS M
Removal and Installation ........................................41.
(NVH) TROUBLESHOOTING ...........................11
.
NVH Troubleshooting - Engine Noise .................... 11 . CAMSHAFT ....................................................... 49
Use the Chart Below to Help You Find the Cause Component .............................................................49
. N
of the Symptom ...................................................... 12
. Removal and Installation ........................................49.
Valve Clearance .....................................................57
.
DRIVE BELTS ...................................................13
.
Component ............................................................. 13
. OIL SEAL .......................................................... 61 O
Checking Drive Belts .............................................. 13 . Removal and Installation of Valve Oil Seal .............61
.
Tension Adjustment ............................................... 13 . Removal and Installation of Front Oil Seal .............61
.
Removal and Installation ........................................ 13 . Removal and Installation of Rear Oil Seal ..............62
. P
Component ............................................................. 14
.
Removal and Installation of Drive Belt Auto Ten- CYLINDER HEAD ............................................. 64
sioner ..................................................................... 14
. On-Vehicle Service .................................................64
.
Component .............................................................65
.
AIR CLEANER AND AIR DUCT .......................16
. Removal and Installation ........................................65.
Component ............................................................. 16
. Component .............................................................67
.
Removal and Installation ........................................ 16
. Disassembly and Assembly ....................................68 .
Revision: October 2008 EM-1 2009 Sentra
Inspection After Disassembly ................................ 69
. Removal and Installation ...................................... 131
.
CYLINDER BLOCK .......................................... 74
. INTAKE MANIFOLD ........................................ 133
.
Component ............................................................ 74
. Removal and Installation ...................................... 133
.
Disassembly and Assembly ................................... 75 .
How to Select Piston and Bearing ......................... 83 . EXHAUST MANIFOLD AND THREE WAY
Inspection After Disassembly ................................ 91 . CATALYST ...................................................... 137
.
Removal and Installation ...................................... 137
.
ENGINE ASSEMBLY ...................................... 102
.
Component ...........................................................102
. OIL PAN AND OIL STRAINER ....................... 139
.
Removal and Installation ......................................102 . Removal and Installation ...................................... 139
.
SERVICE DATA AND SPECIFICATIONS IGNITION COIL ................................................ 142
.
(SDS) ............................................................... 106
. Removal and Installation ...................................... 142
.
Standard and Limit ...............................................106
.
SPARK PLUG .................................................. 143
.
QR25DE Removal and Installation ...................................... 143
.
SERVICE INFORMATION ......................... 117
. FUEL INJECTOR AND FUEL TUBE ............... 145
.
Removal and Installation ...................................... 145
.
PRECAUTIONS .............................................. 117
.
Precaution for Supplemental Restraint System ROCKER COVER ............................................ 148
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Removal and Installation ...................................... 148
.
SIONER" ...............................................................117
.
Precaution Necessary for Steering Wheel Rota- CAMSHAFT ..................................................... 150
.
tion After Battery Disconnect ................................117 . Removal and Installation ...................................... 150
.
Precaution for Procedure without Cowl Top Cover 118 .. Inspection After Installation .................................. 157
.
Precaution for Draining Coolant ...........................118 . Valve Clearance ................................................... 158
.
Precaution for Disconnecting Fuel Piping .............118 .
Precaution for Removal and Disassembly ............118 . TIMING CHAIN ................................................ 161
.
Precaution for Inspection, Repair and Replace- Removal and Installation ...................................... 161
.
ment ......................................................................118
.
OIL SEAL ......................................................... 169
.
Precaution for Assembly and Installation .............118 .
Removal and Installation of Valve Oil Seal .......... 169
.
Parts Requiring Angular Tightening ......................118 .
Removal and Installation of Front Oil Seal ........... 169
.
Precaution for Liquid Gasket ................................119 .
Removal and Installation of Rear Oil Seal ........... 170
.
PREPARATION .............................................. 121
.
CYLINDER HEAD ............................................ 172
.
Special Service Tool .............................................121
.
On-Vehicle Service .............................................. 172
.
Commercial Service Tool .....................................123.
Removal and Installation ...................................... 173
.
NOISE, VIBRATION AND HARSHNESS Disassembly and Assembly ................................. 175 .
(NVH) TROUBLESHOOTING ......................... 126
. Inspection After Disassembly ............................... 177.
NVH Troubleshooting - Engine Noise ...................126 . ENGINE ASSEMBLY ...................................... 182
.
Use the Chart Below to Help You Find the Cause
Removal and Installation ...................................... 182
.
of the Symptom ....................................................126
.
CYLINDER BLOCK ......................................... 185
.
DRIVE BELTS ................................................. 128
. Disassembly and Assembly ................................. 185
.
Checking Drive Belts ............................................128 .
How to Select Piston and Bearing ....................... 193
.
Tension Adjustment ..............................................128 .
Inspection After Disassembly ............................... 199
.
Removal and Installation ......................................128 .
Removal and Installation of Drive Belt Auto-ten- SERVICE DATA AND SPECIFICATIONS
sioner ....................................................................129
. (SDS) ............................................................... 209
.
Standard and Limit ............................................... 209
.
AIR CLEANER AND AIR DUCT ..................... 131
.
Revision: October 2008 EM-2 2009 Sentra
PRECAUTIONS
< SERVICE INFORMATION > [MR20DE]
SERVICE INFORMATION A
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT EM
PRE-TENSIONER" INFOID:0000000004777178
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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