Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Maxima 2006-2009 Approved Nissan Maxima 2007 EM
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B ENGINE
A
EM
SECTION
ENGINE MECHANICAL C
D
E
CONTENTS
PRECAUTIONS ......................................................... 3 . INTAKE MANIFOLD ................................................ 22 . F
Precautions for Supplemental Restraint System Removal and Installation ....................................... 22 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- REMOVAL .......................................................... 23 .
SIONER" ................................................................. 3
. INSPECTION AFTER REMOVAL ...................... 24 . G
Precautions for Drain Coolant ................................. 3 . INSTALLATION .................................................. 24 .
Precautions for Disconnecting Fuel Piping ............. 3 . INSPECTION AFTER INSTALLATION ............... 25 .
Precautions for Removal and Disassembly ............ 3 . EXHAUST MANIFOLD AND THREE WAY CATA-
H
Precautions for Inspection, Repair and Replace- LYST ......................................................................... 27
.
ment ........................................................................ 3
. Removal and Installation ....................................... 27 .
Precautions for Assembly and Installation .............. 3 . REMOVAL .......................................................... 28 .
Parts Requiring Angular Tightening ........................ 4 . INSPECTION AFTER REMOVAL ...................... 29 . I
Precautions for Liquid Gasket ................................. 4 . INSTALLATION .................................................. 29 .
REMOVAL OF LIQUID GASKET SEALING ......... 4 . OIL PAN AND OIL STRAINER ................................ 31 .
LIQUID GASKET APPLICATION PROCEDURE 4 ..... Removal and Installation ....................................... 31 . J
PREPARATION .......................................................... 6 . REMOVAL .......................................................... 31 .
Special Service Tools .............................................. 6 . INSPECTION AFTER REMOVAL ...................... 34 .
Commercial Service Tools ....................................... 9 . INSTALLATION .................................................. 34 .
K
NOISE, VIBRATION, AND HARSHNESS (NVH) INSPECTION AFTER INSTALLATION ............... 36 .
TROUBLESHOOTING ..............................................11 . IGNITION COIL ........................................................ 37 .
NVH Troubleshooting -- Engine Noise ..................11 . Removal and Installation ....................................... 37 .
Use the Chart Below to Help You Find the Cause REMOVAL .......................................................... 37 . L
of the Symptom. .................................................... 12 . INSTALLATION .................................................. 37 .
DRIVE BELTS .......................................................... 13 . SPARK PLUG (PLATINUM-TIPPED TYPE) ............ 38 .
Checking Drive Belts ............................................. 13 . Removal and Installation ....................................... 38 . M
Adjusting Drive Belts ............................................. 13 . REMOVAL .......................................................... 38 .
TENSION ADJUSTMENT .................................. 13 . INSPECTION AFTER REMOVAL ...................... 39 .
AIR CLEANER AND AIR DUCT .............................. 16 . INSTALLATION .................................................. 39 .
Removal and Installation ....................................... 16 . FUEL INJECTOR AND FUEL TUBE ....................... 40 .
REMOVAL .......................................................... 16 . Removal and Installation ....................................... 40 .
INSTALLATION .................................................. 16 . REMOVAL .......................................................... 40 .
CHANGING AIR CLEANER ELEMENT ............. 17 . INSTALLATION .................................................. 41 .
INTAKE MANIFOLD COLLECTOR ......................... 18 . INSPECTION AFTER INSTALLATION ............... 42 .
Removal and Installation ....................................... 18 . ROCKER COVER .................................................... 43 .
REMOVAL .......................................................... 18 . Removal and Installation ....................................... 43 .
INSTALLATION .................................................. 20 . REMOVAL .......................................................... 43 .
INSTALLATION .................................................. 44 .
FRONT TIMING CHAIN CASE ................................ 45 .
Removal and Installation ....................................... 45 .
REMOVAL .......................................................... 46 .
INSTALLATION .................................................. 50 .
Revision: May 2006 EM-1 2007 Maxima
TIMING CHAIN ......................................................... 54 . ENGINE ASSEMBLY .............................................. 109 .
Components .......................................................... 54. Removal and Installation ...................................... 109 .
POSITION FOR APPLYING LIQUID GASKET ... 56 REMOVAL ......................................................... 109 .
Removal ................................................................ 57
. INSTALLATION ................................................. 111 .
Inspection .............................................................. 63
. INSPECTION AFTER INSTALLATION ............. 112 .
Installation .............................................................. 64
. CYLINDER BLOCK ................................................ 113 .
INSPECTION AFTER INSTALLATION ............... 72 . Disassembly and Assembly ................................. 113 .
CAMSHAFT .............................................................. 73. DISASSEMBLY ................................................. 114 .
Removal and Installation ....................................... 73 . ASSEMBLY ....................................................... 116 .
REMOVAL .......................................................... 73 . Inspection ............................................................. 123
.
INSTALLATION ................................................... 75 . PISTON AND PISTON PIN CLEARANCE ........ 123 .
INSPECTION AFTER REMOVAL ....................... 78 . PISTON RING SIDE CLEARANCE .................. 124 .
Inspection after Installation .................................... 81 . PISTON RING END GAP ................................. 124 .
INSPECTION OF CAMSHAFT SPROCKET CONNECTING ROD BEND AND TORSION .... 125 .
(INT) OIL GROOVE ............................................ 81 . CONNECTING ROD BEARING HOUSING
Valve Clearance ..................................................... 82. DIAMETER (BIG END) ..................................... 125 .
CHECKING ......................................................... 82 . CONNECTING ROD BUSHING OIL CLEAR-
VALVE ADJUSTING ........................................... 85 . ANCE (SMALL END) ........................................ 125 .
OIL SEAL ................................................................. 86
. CYLINDER BLOCK DISTORTION ................... 126 .
Removal and Installation of Valve Oil Seal ............ 86 . INNER DIAMETER OF MAIN BEARING HOUS-
REMOVAL .......................................................... 86 . ING .................................................................... 127
.
INSTALLATION ................................................... 86 . PISTON-TO-CYLINDER BORE CLEARANCE . 127
Removal and Installation of Front Oil Seal ............ 86 . CRANKSHAFT .................................................. 129 .
REMOVAL .......................................................... 86 . BEARING CLEARANCE ................................... 129 .
INSTALLATION ................................................... 88 . DRIVE PLATE RUNOUT (CVT) ........................ 133 .
Removal and Installation of Rear Oil Seal ............. 88 . OIL JET ............................................................. 133
.
REMOVAL .......................................................... 88 . OIL JET RELIEF VALVE ................................... 133 .
INSTALLATION ................................................... 88 . SERVICE DATA AND SPECIFICATIONS (SDS) ... 134 .
CYLINDER HEAD .................................................... 90 . Standard and Limit ............................................... 134 .
On-Vehicle Service ................................................ 90 . GENERAL SPECIFICATIONS .......................... 134 .
CHECKING COMPRESSION PRESSURE ........ 90 . DRIVE BELT ..................................................... 135 .
Removal and Installation ....................................... 91 . INTAKE MANIFOLD AND EXHAUST MANI-
REMOVAL .......................................................... 91 . FOLD ................................................................ 135
.
INSTALLATION ................................................... 94 . SPARK PLUG ................................................... 135 .
Disassembly and Assembly ................................. 102 . CYLINDER HEAD ............................................. 136 .
DISASSEMBLY ................................................ 103 . VALVE ............................................................... 136
.
ASSEMBLY ...................................................... 103 . CAMSHAFT AND CAMSHAFT BEARING ........ 140 .
Inspection After Disassembly .............................. 105 . CYLINDER BLOCK ........................................... 140 .
CYLINDER HEAD DISTORTION ..................... 105 . PISTON, PISTON RING AND PISTON PIN ..... 141 .
VALVE GUIDE CLEARANCE ........................... 105 . CONNECTING ROD ......................................... 142 .
VALVE GUIDE REPLACEMENT ...................... 106 . CRANKSHAFT .................................................. 143 .
VALVE SEAT CONTACT .................................. 107 . AVAILABLE MAIN BEARING ............................ 144 .
VALVE SEAT REPLACEMENT ........................ 107 . CONNECTING ROD BEARING ........................ 144 .
VALVE SPRING SQUARENESS ...................... 108 . MISCELLANEOUS COMPONENTS ................. 145 .
VALVE SPRING DIMENSIONS AND VALVE BEARING CLEARANCE ................................... 145 .
SPRING PRESSURE LOAD ............................ 108 .
Revision: May 2006 EM-2 2007 Maxima
PRECAUTIONS
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EBS00RBV
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along EM
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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual. C
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. D
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. E
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. F
Precautions for Drain Coolant EBS00RBW
G Drain coolant when engine is cooled. G
Precautions for Disconnecting Fuel Piping EBS00RBX
G Before starting work, make sure no fire or spark producing items are in the work area.
H
G Release fuel pressure before disassembly.
G After disconnecting pipes, plug openings to stop fuel leakage.
Precautions for Removal and Disassembly EBS00RBY
I
G When instructed to use special service tools, use the specified tools. Always be careful to work safely,
avoid forceful or uninstructed operations.
J
G Exercise maximum care to avoid damage to mating or sliding surfaces.
G Cover openings of engine system with tape or the equivalent, if necessary, to seal out foreign materials.
G Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly. K
G When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, do exactly as specified. Power tools may be
used where noted in the step.
L
Precautions for Inspection, Repair and Replacement EBS00RBZ
G Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way,
and replace if necessary. M
Precautions for Assembly and Installation EBS00RC0
G Use torque wrench to tighten bolts or nuts to specification.
G When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the
ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is speci-
fied, do exactly as specified.
G Replace with new gasket, packing, oil seal or O-ring.
G Thoroughly wash, clean, and air-blow each part. Carefully check oil or coolant passages for any restriction
and blockage.
G Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust.
Before assembly, oil sliding surfaces well.
G Release air within route after draining coolant.
G Before starting engine, apply fuel pressure to fuel lines with turning ignition switch ON (with engine
stopped). Then make sure that there are no leaks at fuel line connections.
Revision: May 2006 EM-3 2007 Maxima
PRECAUTIONS
G After repairing, start engine and increase engine speed to check coolant, fuel, oil, and exhaust systems
for leakage.
Parts Requiring Angular Tightening EBS00RC1
G Use an angle wrench for the final tightening of the following engine parts:
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