Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti G35 2003-2005 Coupe Sedan Approved Infiniti G35 Sedan 2004 Second Edition em
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ENGINE MECHANICAL
B ENGINE
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SECTION
ENGINE MECHANICAL
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CONTENTS
PRECAUTIONS ......................................................... 4 . INTAKE MANIFOLD COLLECTOR ......................... 19 . F
Precautions for Draining Engine Coolant ................ 4 . Removal and Installation ....................................... 19 .
Precautions for Disconnecting Fuel Piping ............. 4 . REMOVAL .......................................................... 19 .
Precautions for Removal and Disassembly ............ 4 . INSPECTION AFTER REMOVAL ...................... 21 . G
Precautions for Inspection, Repair and Replace- INSTALLATION .................................................. 22 .
ment ........................................................................ 4
. INTAKE MANIFOLD ................................................ 24 .
Precautions for Assembly and Installation .............. 4 . Removal and Installation ....................................... 24 .
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Parts Requiring Angle Tightening ............................ 5 . REMOVAL .......................................................... 24 .
Precautions for Liquid Gasket ................................. 5 . INSPECTION AFTER REMOVAL ...................... 24 .
REMOVAL OF LIQUID GASKET SEALING ......... 5 . INSTALLATION .................................................. 25 .
LIQUID GASKET APPLICATION PROCEDURE 5 ..... EXHAUST MANIFOLD AND THREE WAY CATA- I
PREPARATION .......................................................... 7 . LYST ......................................................................... 26
.
Special Service Tools (SST) .................................... 7 . Removal and Installation ....................................... 26 .
Commercial Service Tools ....................................... 9 . REMOVAL .......................................................... 26 . J
NOISE, VIBRATION AND HARSHNESS (NVH) INSPECTION AFTER REMOVAL ...................... 28 .
TROUBLESHOOTING ............................................. 12 . INSTALLATION .................................................. 28 .
NVH Troubleshooting --Engine Noise .................. 12 . OIL PAN AND OIL STRAINER ................................ 30 .
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Use the Chart Below to Help You Find the Cause Removal and Installation (2WD Model) ................. 30 .
of the Symptom. .................................................... 13 . REMOVAL .......................................................... 30 .
DRIVE BELTS .......................................................... 14. INSPECTION AFTER REMOVAL ...................... 32 .
Checking Drive Belts ............................................. 14 . INSTALLATION .................................................. 32 . L
Tension Adjustment ............................................... 14 . INSPECTION AFTER INSTALLATION ............... 35 .
ALTERNATOR AND POWER STEERING OIL Removal and Installation (AWD Model) ................. 36 .
PUMP BELT ....................................................... 15 . REMOVAL .......................................................... 36 . M
A/C COMPRESSOR BELT ................................ 15 . INSPECTION AFTER REMOVAL ...................... 39 .
Removal and Installation ....................................... 15 . INSTALLATION .................................................. 39 .
REMOVAL .......................................................... 15 . INSPECTION AFTER INSTALLATION ............... 42 .
INSTALLATION .................................................. 16 . IGNITION COIL ........................................................ 43 .
AIR CLEANER AND AIR DUCT .............................. 17 . Removal and Installation ....................................... 43 .
Removal and Installation ....................................... 17 . REMOVAL .......................................................... 43 .
REMOVAL .......................................................... 17 . INSTALLATION .................................................. 43 .
INSTALLATION .................................................. 17 . SPARK PLUG (PLATINUM-TIPPED TYPE) ............ 44 .
Changing Air Cleaner Filter ................................... 18 . Removal and Installation ....................................... 44 .
INSPECTION ..................................................... 18 . REMOVAL .......................................................... 44 .
REMOVAL .......................................................... 18 . INSPECTION AFTER REMOVAL ...................... 44 .
INSTALLATION .................................................. 18 . INSTALLATION .................................................. 45 .
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FUEL INJECTOR AND FUEL TUBE ....................... 46 . REMOVAL ......................................................... 112 .
Removal and Installation ....................................... 46 . INSTALLATION ................................................. 114 .
REMOVAL .......................................................... 47
. INSPECTION AFTER INSTALLATION ............. 115 .
INSTALLATION ................................................... 48. Removal and Installation (AWD Model) ............... 116 .
INSPECTION AFTER INSTALLATION ............... 51 . REMOVAL ......................................................... 117 .
ROCKER COVER .................................................... 52 . INSTALLATION ................................................. 119 .
Removal and Installation ....................................... 52 . INSPECTION AFTER INSTALLATION ............. 120 .
REMOVAL .......................................................... 52
. CYLINDER BLOCK ................................................ 121 .
INSTALLATION ................................................... 53. Disassembly and Assembly ................................. 121 .
FRONT TIMING CHAIN CASE ................................ 55 . DISASSEMBLY ................................................. 122 .
Removal and Installation ....................................... 55 . ASSEMBLY ....................................................... 127 .
REMOVAL .......................................................... 55
. How to Select Piston and Bearing ....................... 134 .
INSTALLATION ................................................... 58. DESCRIPTION ................................................. 134 .
INSPECTION AFTER INSTALLATION ............... 63 . HOW TO SELECT PISTON .............................. 134 .
TIMING CHAIN ......................................................... 64
. HOW TO SELECT CONNECTING ROD BEAR-
Removal and Installation ....................................... 64 . ING .................................................................... 135
.
REMOVAL .......................................................... 65
. HOW TO SELECT MAIN BEARING ................. 136 .
INSPECTION AFTER REMOVAL ....................... 72 . Inspection After Disassembly ............................... 139 .
INSTALLATION ................................................... 73. CRANKSHAFT END PLAY ............................... 139 .
INSPECTION AFTER INSTALLATION ............... 82 . CONNECTING ROD SIDE CLEARANCE ........ 139 .
CAMSHAFT .............................................................. 84
. PISTON TO PISTON PIN OIL CLEARANCE .... 139 .
Removal and Installation ....................................... 84 . PISTON RING SIDE CLEARANCE .................. 140 .
REMOVAL .......................................................... 85
. PISTON RING END GAP ................................. 140 .
INSPECTION AFTER REMOVAL ....................... 86 . CONNECTING ROD BEND AND TORSION .... 141 .
INSTALLATION ................................................... 89. CONNECTING ROD BIG END DIAMETER ..... 141 .
Valve Clearance ..................................................... 91
. CONNECTING ROD BUSHING OIL CLEAR-
INSPECTION ...................................................... 91
. ANCE ................................................................ 141
.
ADJUSTMENT ................................................... 94 . CYLINDER BLOCK DISTORTION ................... 142 .
OIL SEAL ................................................................. 96
. MAIN BEARING HOUSING INNER DIAMETER.143
Removal and Installation of Valve Oil Seal ............ 96 . PISTON TO CYLINDER BORE CLEARANCE . 143
REMOVAL .......................................................... 96
. CRANKSHAFT MAIN JOURNAL DIAMETER .. 144 .
INSTALLATION ................................................... 96. CRANKSHAFT PIN JOURNAL DIAMETER ..... 145 .
Removal and Installation of Front Oil Seal ............ 97 . CRANKSHAFT OUT-OF-ROUND AND TAPER.145
REMOVAL .......................................................... 97
. CRANKSHAFT RUNOUT ................................. 145 .
INSTALLATION ................................................... 97. CONNECTING ROD BEARING OIL CLEAR-
Removal and Installation of Rear Oil Seal ............. 98 . ANCE ................................................................ 145
.
REMOVAL .......................................................... 98
. MAIN BEARING OIL CLEARANCE .................. 146 .
INSTALLATION ................................................... 98. CRUSH HEIGHT OF MAIN BEARING ............. 147 .
CYLINDER HEAD .................................................... 99 . CRUSH HEIGHT OF CONNECTING ROD
On-Vehicle Service ................................................ 99
. BEARING .......................................................... 147 .
CHECKING COMPRESSION PRESSURE ........ 99 . MAIN BEARING CAP BOLT OUTER DIAMETER .147
Removal and Installation ..................................... 100 . CONNECTING ROD BOLT OUTER DIAMETER.148
REMOVAL ........................................................ 100
. FLYWHEEL DEFLECTION ............................... 148 .
INSPECTION AFTER REMOVAL ..................... 101 . MOVEMENT AMOUNT OF FLYWHEEL .......... 148 .
INSTALLATION ................................................. 102 . DRIVE PLATE (A/T MODELS) .......................... 149 .
Disassembly and Assembly ................................. 103 . OIL JET ............................................................. 149
.
DISASSEMBLY ................................................ 104 . OIL JET RELIEF VALVE ................................... 149 .
ASSEMBLY ...................................................... 105. SERVICE DATA AND SPECIFICATIONS (SDS) ... 150 .
Inspection After Disassembly .............................. 106 . Standard and Limit ............................................... 150 .
VALVE DIMENSIONS ....................................... 106 . GENERAL SPECIFICATIONS .......................... 150 .
VALVE GUIDE CLEARANCE ........................... 106 . DRIVE BELT ..................................................... 151 .
VALVE GUIDE REPLACEMENT ...................... 107 . INTAKE MANIFOLD COLLECTOR, INTAKE
VALVE SEAT CONTACT .................................. 108 . MANIFOLD AND EXHAUST MANIFOLD ......... 151 .
VALVE SEAT REPLACEMENT ........................ 108 . SPARK PLUG ................................................... 151 .
VALVE SPRING SQUARENESS ...................... 109 . CAMSHAFT AND CAMSHAFT BEARING ........ 152 .
VALVE SPRING DIMENSIONS AND VALVE CYLINDER HEAD ............................................. 154 .
SPRING PRESSURE LOAD ............................ 110 . CYLINDER BLOCK ........................................... 157 .
ENGINE ASSEMBLY ............................................. 111 . PISTON, PISTON RING AND PISTON PIN ..... 158 .
Removal and Installation (2WD Model) ................111 . CONNECTING ROD ......................................... 159 .
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CRANKSHAFT ................................................. 160
. CONNECTING ROD BEARING ....................... 162 .
MAIN BEARING ............................................... 161
. Tightening Torque ................................................ 162
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PRECAUTIONS
PRECAUTIONS PFP:00001
Precautions for Draining Engine Coolant ABS0046W
Drain engine coolant when engine is cooled.
Precautions for Disconnecting Fuel Piping ABS0046X
q Before starting work, make sure no fire or spark producing items are in the work area.
q Release fuel pressure before disassembly.
q After disconnecting pipes, plug openings to stop fuel leakage.
Precautions for Removal and Disassembly ABS0046Y
q When instructed to use special service tools, use the specified tools. Always be careful to work safely,
avoid forceful or uninstructed operations.
q Exercise maximum care to avoid damage to mating or sliding surfaces.
q Cover openings of engine system with tape or the equivalent, if necessary, to seal out foreign materials.
q Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly.
q When loosening bolts and nuts, 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.
Precautions for Inspection, Repair and Replacement ABS0046Z
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precautions for Assembly and Installation ABS00470
q Use torque wrench to tighten bolts or nuts to specification.
q When tightening bolts and nuts, 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.
q Replace with new gasket, packing, oil seal or O-ring.
q Thoroughly wash, clean, and air-blow each part. Carefully check engine oil or engine coolant passages for
any restriction and blockage.
q Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust.
Before assembly, oil sliding surfaces well.
q Release air within route when refilling after draining engine coolant.
q After repairing, start engine and increase engine speed to check engine coolant, fuel, engine oil, and
exhaust systems for leakage.
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PRECAUTIONS
Parts Requiring Angle Tightening ABS00471
A
q Use angle wrench [SST: KV10112100 (BT8653-A)] for the final tightening of the following engine parts:
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