Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti FX45 FX35 2003-2005 Approved FX45_35-S50-2004.5 em
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ENGINE MECHANICAL
B ENGINE
A
SECTION
ENGINE MECHANICAL
EM EM
C
D
E
CONTENTS
VQ35DE INTAKE MANIFOLD COLLECTOR ......................... 19 . F
Removal and Installation ....................................... 19 .
PRECAUTIONS ......................................................... 5 . REMOVAL .......................................................... 19 .
Precautions Necessary for Steering Wheel Rotation INSPECTION AFTER REMOVAL ...................... 21 . G
After Battery Disconnect ......................................... 5 . INSTALLATION .................................................. 22 .
OPERATION PROCEDURE ................................ 5 . INTAKE MANIFOLD ................................................ 24 .
Precautions for Drain Engine Coolant ..................... 5 . Removal and Installation ....................................... 24 .
Precautions for Disconnecting Fuel Piping ............. 5 . H
REMOVAL .......................................................... 24 .
Precautions for Removal and Disassembly ............ 5 . INSPECTION AFTER REMOVAL ...................... 24 .
Precautions for Inspection, Repair and Replace- INSTALLATION .................................................. 25 .
ment ........................................................................ 5
. EXHAUST MANIFOLD AND THREE WAY CATA- I
Precautions for Assembly and Installation .............. 5 . LYST ......................................................................... 26
.
Parts Requiring Angular Tightening ........................ 6 . Removal and Installation ....................................... 26 .
Precautions for Liquid Gasket ................................. 6 . REMOVAL .......................................................... 26 . J
REMOVAL OF LIQUID GASKET SEALING ......... 6 . INSPECTION AFTER REMOVAL ...................... 28 .
LIQUID GASKET APPLICATION PROCEDURE 6 ..... INSTALLATION .................................................. 28 .
PREPARATION .......................................................... 8 . OIL PAN AND OIL STRAINER ................................ 30 .
Special Service Tools .............................................. 8 . K
Removal and Installation ....................................... 30 .
Commercial Service Tools ..................................... 10 . 2WD MODEL ...................................................... 30 .
NOISE, VIBRATION AND HARSHNESS (NVH) REMOVAL .......................................................... 30 .
TROUBLESHOOTING ............................................. 13 . INSPECTION AFTER REMOVAL ...................... 32 . L
NVH Troubleshooting -- Engine Noise ................. 13 . INSTALLATION .................................................. 32 .
Use the Chart Below to Help You Find the Cause INSPECTION AFTER INSTALLATION ............... 35 .
of the Symptom. .................................................... 14 . AWD MODEL ..................................................... 36 . M
DRIVE BELTS .......................................................... 15. REMOVAL .......................................................... 36 .
Checking Drive Belts ............................................. 15 . INSPECTION AFTER REMOVAL ...................... 38 .
Tension Adjustment ............................................... 15 . INSTALLATION .................................................. 39 .
ALTERNATOR AND POWER STEERING OIL INSPECTION AFTER INSTALLATION ............... 41 .
PUMP BELT ....................................................... 16 . IGNITION COIL ........................................................ 42 .
AIR CONDITIONER COMPRESSOR BELT ...... 16 . Removal and Installation ....................................... 42 .
Removal and Installation ....................................... 16 . REMOVAL .......................................................... 42 .
REMOVAL .......................................................... 16 . INSTALLATION .................................................. 42 .
INSTALLATION .................................................. 16 . SPARK PLUG (PLATINUM-TIPPED TYPE) ............ 43 .
AIR CLEANER AND AIR DUCT .............................. 17 . Removal and Installation ....................................... 43 .
Removal and Installation ....................................... 17 . REMOVAL .......................................................... 43 .
REMOVAL .......................................................... 17 . INSPECTION AFTER REMOVAL ...................... 43 .
INSTALLATION .................................................. 17 . INSTALLATION .................................................. 44 .
Changing Air Cleaner Filter ................................... 18 .
INSPECTION ..................................................... 18 .
REMOVAL .......................................................... 18 .
INSTALLATION .................................................. 18 .
Revision: 2004 November EM-1 2004.5 FX35/FX45
FUEL INJECTOR AND FUEL TUBE ....................... 45 . SPRING PRESSURE LOAD ............................. 109 .
Removal and Installation ....................................... 45 . ENGINE ASSEMBLY .............................................. 110 .
REMOVAL .......................................................... 46
. Removal and Installation ...................................... 110 .
INSTALLATION ................................................... 47. 2WD MODEL .................................................... 110 .
INSPECTION AFTER INSTALLATION ............... 49 . REMOVAL ......................................................... 111 .
ROCKER COVER .................................................... 51 . INSTALLATION ................................................. 113 .
Removal and Installation ....................................... 51 . INSPECTION AFTER INSTALLATION ............. 113 .
REMOVAL .......................................................... 51
. AWD MODEL .................................................... 115 .
INSTALLATION ................................................... 52. REMOVAL ......................................................... 115 .
FRONT TIMING CHAIN CASE ................................ 54 . INSTALLATION ................................................. 118 .
Removal and Installation ....................................... 54 . INSPECTION AFTER INSTALLATION ............. 118 .
REMOVAL .......................................................... 54
. CYLINDER BLOCK ................................................ 120 .
INSTALLATION ................................................... 58. Disassembly and Assembly ................................. 120 .
INSPECTION AFTER INSTALLATION ............... 62 . DISASSEMBLY ................................................. 121 .
TIMING CHAIN ......................................................... 63
. ASSEMBLY ....................................................... 126 .
Removal and Installation ....................................... 63 . How to Select Piston and Bearing ....................... 132 .
REMOVAL .......................................................... 64
. DESCRIPTION ................................................. 132 .
INSPECTION AFTER REMOVAL ....................... 71 . HOW TO SELECT PISTON .............................. 132 .
INSTALLATION ................................................... 71. HOW TO SELECT CONNECTING ROD BEAR-
INSPECTION AFTER INSTALLATION ............... 80 . ING .................................................................... 133
.
CAMSHAFT .............................................................. 82
. HOW TO SELECT MAIN BEARING ................. 134 .
Removal and Installation ....................................... 82 . Inspection After Disassembly ............................... 137 .
REMOVAL .......................................................... 83
. CRANKSHAFT END PLAY ............................... 137 .
INSPECTION AFTER REMOVAL ....................... 84 . CONNECTING ROD SIDE CLEARANCE ........ 137 .
INSTALLATION ................................................... 87. PISTON TO PISTON PIN OIL CLEARANCE .... 137 .
Valve Clearance ..................................................... 89
. PISTON RING SIDE CLEARANCE .................. 138 .
INSPECTION ...................................................... 89
. PISTON RING END GAP ................................. 138 .
ADJUSTMENT ................................................... 92 . CONNECTING ROD BEND AND TORSION .... 139 .
OIL SEAL ................................................................. 94
. CONNECTING ROD BEARING HOUSING
Removal and Installation of Valve Oil Seal ............ 94 . DIAMETER (BIG END) ..................................... 139 .
REMOVAL .......................................................... 94
. CONNECTING ROD BUSHING OIL CLEAR-
INSTALLATION ................................................... 94. ANCE (SMALL END) ........................................ 139 .
Removal and Installation of Front Oil Seal ............ 95 . CYLINDER BLOCK DISTORTION ................... 140 .
REMOVAL .......................................................... 95
. MAIN BEARING HOUSING INNER DIAMETER.141
INSTALLATION ................................................... 96. PISTON TO CYLINDER BORE CLEARANCE . 141
Removal and Installation of Rear Oil Seal ............. 96 . CRANKSHAFT MAIN JOURNAL DIAMETER .. 142 .
REMOVAL .......................................................... 96
. CRANKSHAFT PIN JOURNAL DIAMETER ..... 143 .
INSTALLATION ................................................... 96. CRANKSHAFT OUT-OF-ROUND AND TAPER.143
CYLINDER HEAD .................................................... 98 . CRANKSHAFT RUNOUT ................................. 143 .
On-Vehicle Service ................................................ 98
. CONNECTING ROD BEARING OIL CLEAR-
CHECKING COMPRESSION PRESSURE ........ 98 . ANCE ................................................................ 143
.
Removal and Installation ....................................... 99 . MAIN BEARING OIL CLEARANCE .................. 144 .
REMOVAL .......................................................... 99
. MAIN BEARING CRUSH HEIGHT ................... 145 .
INSPECTION AFTER REMOVAL ..................... 100 . CONNECTING ROD BEARING CRUSH
INSTALLATION ................................................. 101 . HEIGHT ............................................................ 145.
Disassembly and Assembly ................................. 102 . MAIN BEARING CAP BOLT OUTER DIAMETER .145
DISASSEMBLY ................................................ 103 . CONNECTING ROD BOLT OUTER DIAMETER.146
ASSEMBLY ...................................................... 103. DRIVE PLATE ................................................... 146 .
Inspection After Disassembly .............................. 104 . OIL JET ............................................................. 146
.
VALVE DIMENSIONS ....................................... 104 . OIL JET RELIEF VALVE ................................... 146 .
VALVE GUIDE CLEARANCE ........................... 105 . SERVICE DATA AND SPECIFICATIONS (SDS) ... 147 .
VALVE GUIDE REPLACEMENT ...................... 106 . Standard and Limit ............................................... 147 .
VALVE SEAT CONTACT .................................. 107 . GENERAL SPECIFICATIONS .......................... 147 .
VALVE SEAT REPLACEMENT ........................ 107 . DRIVE BELT ..................................................... 148 .
VALVE SPRING SQUARENESS ...................... 108 . INTAKE MANIFOLD COLLECTOR, INTAKE
VALVE SPRING DIMENSIONS AND VALVE
Revision: 2004 November EM-2 2004.5 FX35/FX45
MANIFOLD AND EXHAUST MANIFOLD ........ 148 . INTAKE MANIFOLD .............................................. 175 .
SPARK PLUG .................................................. 148
. Removal and Installation ..................................... 175 . A
CAMSHAFT AND CAMSHAFT BEARING ....... 149 . REMOVAL ........................................................ 175 .
CYLINDER HEAD ............................................ 151
. INSPECTION AFTER REMOVAL .................... 177 .
CYLINDER BLOCK .......................................... 154
. INSTALLATION ................................................ 177 . EM
PISTON, PISTON RING AND PISTON PIN ..... 155 . INSPECTION AFTER INSTALLATION ............. 178 .
CONNECTING ROD ........................................ 156 . EXHAUST MANIFOLD AND THREE WAY CATA-
CRANKSHAFT ................................................. 157
. LYST ....................................................................... 179
.
MAIN BEARING ............................................... 158
. Removal and Installation ..................................... 179 . C
CONNECTING ROD BEARING ....................... 159 . REMOVAL ........................................................ 179 .
INSPECTION AFTER REMOVAL .................... 181 .
VK45DE INSTALLATION ................................................ 181 . D
OIL PAN AND OIL STRAINER .............................. 182 .
PRECAUTIONS ..................................................... 160 . Removal and Installation ..................................... 182 .
Precautions Necessary for Steering Wheel Rotation REMOVAL ........................................................ 182 . E
After Battery Disconnect ..................................... 160 . INSPECTION AFTER REMOVAL .................... 184 .
OPERATION PROCEDURE ............................ 160 . INSTALLATION ................................................ 184 .
Precautions for Drain Engine Coolant ................. 160 . INSPECTION AFTER INSTALLATION ............. 185 .
Precautions for Disconnecting Fuel Piping ......... 160 . IGNITION COIL ...................................................... 186 . F
Precautions for Removal and Disassembly ........ 160 . Removal and Installation ..................................... 186 .
Precautions for Inspection, Repair and Replace- REMOVAL ........................................................ 186 .
ment .................................................................... 160
. INSTALLATION ................................................ 186 . G
Precautions for Assembly and Installation .......... 160 . SPARK PLUG (PLATINUM-TIPPED TYPE) .......... 187 .
Parts Requiring Angle Tightening ........................ 161 . Removal and Installation ..................................... 187 .
Precautions for Liquid Gasket ............................. 161 . REMOVAL ........................................................ 187 . H
REMOVAL OF LIQUID GASKET SEALING ..... 161 . INSPECTION AFTER REMOVAL .................... 187 .
LIQUID GASKET APPLICATION PROCEDURE 161 . INSTALLATION ................................................ 188 .
PREPARATION ...................................................... 163 . FUEL INJECTOR AND FUEL TUBE ..................... 189 .
Special Service Tools .......................................... 163 . I
Removal and Installation ..................................... 189 .
Commercial Service Tools ................................... 165 . REMOVAL ........................................................ 189 .
NOISE, VIBRATION AND HARSHNESS (NVH) INSTALLATION ................................................ 191 .
TROUBLESHOOTING ........................................... 167 . INSPECTION AFTER INSTALLATION ............. 193 . J
NVH Troubleshooting -- Engine Noise ............... 167 . ROCKER COVER .................................................. 194 .
Use the Chart Below to Help You Find the Cause Removal and Installation ..................................... 194 .
of the Symptom. .................................................. 168 . REMOVAL ........................................................ 194 . K
ENGINE ROOM COVER ....................................... 169 . INSTALLATION ................................................ 196 .
Removal and Installation ..................................... 169 . TIMING CHAIN ....................................................... 197 .
REMOVAL ........................................................ 169 . Removal and Installation ..................................... 197 . L
INSTALLATION ................................................ 169 . REMOVAL ........................................................ 198 .
DRIVE BELTS ........................................................ 170 . INSPECTION AFTER REMOVAL .................... 202 .
Checking Drive Belts ........................................... 170 . INSTALLATION ................................................ 202 .
Tension Adjustment ............................................. 170 . INSPECTION AFTER INSTALLATION ............. 208 . M
Removal and Installation ..................................... 170 . CAMSHAFT ........................................................... 209 .
REMOVAL ........................................................ 170 . Removal and Installation ..................................... 209 .
INSTALLATION ................................................ 171 . REMOVAL ........................................................ 209 .
Drive Belt Auto Tensioner and Idler Pulley .......... 172 . INSPECTION AFTER REMOVAL .................... 210 .
REMOVAL ........................................................ 172 . INSTALLATION ................................................ 213 .
INSTALLATION ................................................ 172 . INSPECTION AFTER INSTALLATION ............. 215 .
AIR CLEANER AND AIR DUCT ............................ 173 . Valve Clearance .................................................. 216 .
Removal and Installation ..................................... 173 . INSPECTION ................................................... 216 .
REMOVAL ........................................................ 173 . ADJUSTMENT ................................................. 218 .
INSPECTION AFTER REMOVAL .................... 173 . OIL SEAL ............................................................... 222
.
INSTALLATION ................................................ 174 . Removal and Installation of Valve Oil Seal .......... 222 .
Changing Air Cleaner Filter ................................. 174 . REMOVAL ........................................................ 222 .
REMOVAL ........................................................ 174 . INSTALLATION ................................................ 222 .
INSTALLATION ................................................ 174 . Removal and Installation of Front Oil Seal .......... 223 .
REMOVAL ........................................................ 223 .
Revision: 2004 November EM-3 2004.5 FX35/FX45
INSTALLATION ................................................. 223 . HOW TO SELECT MAIN BEARING ................. 254 .
Removal and Installation of Rear Oil Seal ........... 224 . Inspection After Disassembly ............................... 259 .
REMOVAL ........................................................ 224 . CRANKSHAFT END PLAY ............................... 259 .
INSTALLATION ................................................. 224 . CONNECTING ROD SIDE CLEARANCE ........ 259 .
CYLINDER HEAD .................................................. 226 . PISTON TO PISTON PIN OIL CLEARANCE .... 259 .
On-Vehicle Service .............................................. 226 . PISTON RING SIDE CLEARANCE .................. 260 .
CHECKING COMPRESSION PRESSURE ...... 226 . PISTON RING END GAP ................................. 260 .
Removal and Installation ..................................... 227 . CONNECTING ROD BEND AND TORSION .... 261 .
REMOVAL ........................................................ 227 . CONNECTING ROD BIG END DIAMETER ..... 261 .
INSPECTION AFTER REMOVAL ..................... 228 . CONNECTING ROD BUSHING OIL CLEAR-
INSTALLATION ................................................. 228 . ANCE ................................................................ 261
.
Disassembly and Assembly ................................. 230 . CYLINDER BLOCK DISTORTION ................... 262 .
DISASSEMBLY ................................................ 230 . MAIN BEARING HOUSING INNER DIAMETER.263
ASSEMBLY ...................................................... 231 . PISTON TO CYLINDER BORE CLEARANCE . 263
Inspection After Disassembly .............................. 232 . CRANKSHAFT MAIN JOURNAL DIAMETER .. 264 .
VALVE DIMENSIONS ....................................... 232 . CRANKSHAFT PIN JOURNAL DIAMETER ..... 265 .
VALVE GUIDE CLEARANCE ........................... 233 . CRANKSHAFT OUT-OF-ROUND AND TAPER.265
VALVE GUIDE REPLACEMENT ...................... 233 . CRANKSHAFT RUNOUT ................................. 265 .
VALVE SEAT CONTACT .................................. 235 . CONNECTING ROD BEARING OIL CLEAR-
VALVE SEAT REPLACEMENT ........................ 235 . ANCE ................................................................ 266
.
VALVE SPRING SQUARENESS ...................... 236 . MAIN BEARING OIL CLEARANCE .................. 267 .
VALVE SPRING DIMENSIONS AND VALVE CRUSH HEIGHT OF MAIN BEARING ............. 268 .
SPRING PRESSURE LOAD ............................ 236 . CRUSH HEIGHT OF CONNECTING ROD
ENGINE ASSEMBLY ............................................. 237 . BEARING .......................................................... 268
.
Removal and Installation ..................................... 237 . DRIVE PLATE ................................................... 268 .
REMOVAL ........................................................ 237 . SERVICE DATA AND SPECIFICATIONS (SDS) ... 269 .
INSTALLATION ................................................. 240 . Standard and Limit ............................................... 269.
INSPECTION AFTER INSTALLATION ............. 240 . GENERAL SPECIFICATIONS .......................... 269 .
CYLINDER BLOCK ................................................ 242 . DRIVE BELTS ................................................... 269 .
Disassembly and Assembly ................................. 242 . INTAKE MANIFOLD AND EXHAUST MANI-
DISASSEMBLY ................................................ 243 . FOLD ................................................................ 269
.
ASSEMBLY ...................................................... 246 . SPARK PLUG ................................................... 270 .
How to Select Piston and Bearing ....................... 252 . CAMSHAFT AND CAMSHAFT BEARING ........ 270 .
DESCRIPTION ................................................. 252 . CYLINDER HEAD ............................................. 272 .
HOW TO SELECT PISTON .............................. 252 . CYLINDER BLOCK ........................................... 275 .
HOW TO SELECT CONNECTING ROD BEAR- PISTON, PISTON RING AND PISTON PIN ..... 276 .
ING ................................................................... 253
. CONNECTING ROD ......................................... 277 .
CRANKSHAFT .................................................. 278 .
MAIN BEARING ................................................ 280 .
CONNECTING ROD BEARING ........................ 281 .
Revision: 2004 November EM-4 2004.5 FX35/FX45
PRECAUTIONS
[VQ35DE]
PRECAUTIONS
[VQ35DE] PFP:00001
A
Precautions Necessary for Steering Wheel Rotation After Battery Disconnect
ABS00B3J
NOTE:
q This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI EM
VEHICLE IMMOBILIZER SYSTEM - NATS).
q Remove and install all control units after disconnecting both battery cables with the ignition knob in the
LOCK position. C
q Always use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock D
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible. E
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE F
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged. G
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ACC position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be H
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the LOCK position before connecting I
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.
J
Precautions for Drain Engine Coolant ABS005ZK
Drain engine coolant when engine is cooled.
Precautions for Disconnecting Fuel Piping ABS005ZL K
q Before starting work, make sure no fire or spark producing items are in the work area.
q Release fuel pressure before disconnecting and disassembly. L
q After disconnecting pipes, plug openings to stop fuel leakage.
Precautions for Removal and Disassembly ABS005ZM
M
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 re-assembly.
q 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.
Precautions for Inspection, Repair and Replacement ABS005ZN
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precautions for Assembly and Installation ABS005ZO
q Use torque wrench to tighten bolts or nuts to specification.
Revision: 2004 November EM-5 2004.5 FX35/FX45
PRECAUTIONS
[VQ35DE]
q 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.
q Replace with new liquid 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 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.
q After repairing, start engine and increase engine speed to check engine coolant, fuel, engine oil and
exhaust systems for leakage.
Parts Requiring Angular Tightening ABS005ZP
q Use an angle wrench [SST: KV10112100 (BT8653-A)] for the final tightening of the following engine parts:
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