Intake Manifold INFINITI M35 2006 Factory Manual PDF

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Revision: 2006 January2006 M35/M45 ANCE ................................................................146
MAIN BEARING OIL CLEARANCE ..................147
MAIN BEARING CRUSH HEIGHT ....................148
CONNECTING ROD BEARING CRUSH
HEIGHT .............................................................148
MAIN BEARING CAP BOLT OUTER DIAMETER .148
CONNECTING ROD BOLT OUTER DIAMETER .149
DRIVE PLATE ...................................................149
OIL JET .............................................................149
OIL JET RELIEF VALVE ...................................149
SERVICE DATA AND SPECIFICATIONS (SDS) ....150
Standard and Limit ...............................................150
GENERAL SPECIFICATIONS ..........................150
DRIVE BELT .....................................................151
INTAKE MANIFOLD COLLECTOR, INTAKE
MANIFOLD AND EXHAUST MANIFOLD .........151
SPARK PLUG ...................................................151
CAMSHAFT AND CAMSHAFT BEARING ........152
CYLINDER HEAD .............................................154
CYLINDER BLOCK ...........................................157
PISTON, PISTON RING AND PISTON PIN ......158
CONNECTING ROD .........................................159
CRANKSHAFT ..................................................160
MAIN BEARING ................................................161
CONNECTING ROD BEARING ........................162
VK45DE
PRECAUTIONS ......................................................163
Precautions for Procedures without Cowl Top Cover .163
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect ......................................163
OPERATION PROCEDURE .............................163
Precautions for Drain Engine Coolant and Engine
Oil .........................................................................163
Precautions for Disconnecting Fuel Piping ..........163
Precautions for Removal and Disassembly .........163
Precautions for Inspection, Repair and Replace-
ment .....................................................................164
Precautions for Assembly and Installation ...........164
Parts Requiring Angle Tightening .........................164
Precautions for Liquid Gasket ..............................164
REMOVAL OF LIQUID GASKET SEALING ......164
LIQUID GASKET APPLICATION PROCEDURE .165
PREPARATION .......................................................166
Special Service Tools ...........................................166
Commercial Service Tools ....................................169
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ............................................171
NVH Troubleshooting — Engine Noise ................171
Use the Chart Below to Help You Find the Cause
of the Symptom. ...................................................172
ENGINE ROOM COVER ........................................173
Components .........................................................173
Removal and Installation ......................................173
REMOVAL ........................................................
.173
INSTALLATION .................................................173DRIVE BELTS .........................................................174
Components .........................................................174
Checking Drive Belts ............................................174
Tension Adjustment .............................................
.174
Removal and Installation ......................................174
REMOVAL ........................................................
.174
INSTALLATION .................................................175
Components .........................................................176
Drive Belt Auto Tensioner and Idler Pulley ...........176
REMOVAL ........................................................
.176
INSTALLATION .................................................176
AIR CLEANER AND AIR DUCT .............................177
Components .........................................................177
Removal and Installation ......................................177
REMOVAL ........................................................
.177
INSPECTION AFTER REMOVAL .....................178
INSTALLATION .................................................178
Changing Air Cleaner Filter ..................................178
REMOVAL ........................................................
.178
INSTALLATION .................................................178
INTAKE MANIFOLD ..............................................
.179
Components .........................................................179
Removal and Installation ......................................180
REMOVAL ........................................................
.180
INSPECTION AFTER REMOVAL .....................182
INSTALLATION .................................................182
INSPECTION AFTER INSTALLATION ..............182
EXHAUST MANIFOLD AND THREE WAY CATA-
LYST ........................................................................183
Components .........................................................183
Removal and Installation ......................................183
REMOVAL ........................................................
.183
INSPECTION AFTER REMOVAL .....................185
INSTALLATION .................................................185
OIL PAN AND OIL STRAINER ...............................187
Components .........................................................187
Removal and Installation ......................................187
REMOVAL ........................................................
.187
INSPECTION AFTER REMOVAL .....................188
INSTALLATION .................................................188
INSPECTION AFTER INSTALLATION ..............189
IGNITION COIL .......................................................190
Components .........................................................190
Removal and Installation ......................................190
REMOVAL ........................................................
.190
INSTALLATION .................................................190
SPARK PLUG (PLATINUM-TIPPED TYPE) ...........191
Components .........................................................191
Removal and Installation ......................................191
REMOVAL ........................................................
.191
INSPECTION AFTER REMOVAL .....................191
INSTALLATION .................................................192
FUEL INJECTOR AND FUEL TUBE ......................193
Components .........................................................193
Removal and Installation ......................................193
REMOVAL ........................................................
.193
INSTALLATION .................................................195
INSPECTION AFTER INSTALLATION ..............197

EM-4Revision: 2006 January2006 M35/M45 ROCKER COVER ...................................................199
Components .........................................................199
Removal and Installation ......................................199
REMOVAL ........................................................
.199
INSTALLATION ..................................................201
TIMING CHAIN ........................................................203
Components .........................................................203
Removal and Installation ......................................204
REMOVAL ........................................................
.204
INSPECTION AFTER REMOVAL ......................208
INSTALLATION ..................................................208
INSPECTION AFTER INSTALLATION ..............214
CAMSHAFT .............................................................215
Components .........................................................215
Removal and Installation ......................................215
REMOVAL ........................................................
.215
INSPECTION AFTER REMOVAL ......................216
INSTALLATION ..................................................219
INSPECTION AFTER INSTALLATION ..............221
INSPECTION AFTER INSTALLATION ..............222
Valve Clearance ....................................................222
INSPECTION .....................................................222
ADJUSTMENT ..................................................225
OIL SEAL ................................................................229
Removal and Installation of Valve Oil Seal ...........229
REMOVAL ........................................................
.229
INSTALLATION ..................................................229
Removal and Installation of Front Oil Seal ...........230
REMOVAL ........................................................
.230
INSTALLATION ..................................................230
Removal and Installation of Rear Oil Seal ............231
REMOVAL ........................................................
.231
INSTALLATION ..................................................231
CYLINDER HEAD .................................................. .233
On-Vehicle Service ...............................................233
CHECKING COMPRESSION PRESSURE .......233
Components .........................................................234
Removal and Installation ......................................234
REMOVAL ........................................................
.234
INSPECTION AFTER REMOVAL ......................235
INSTALLATION ..................................................235
Disassembly and Assembly ..................................237
COMPONENTS .................................................237
DISASSEMBLY .................................................237
ASSEMBLY ......................................................
.238
Inspection after Disassembly ................................239
VALVE DIMENSIONS ........................................239
VALVE GUIDE CLEARANCE ............................240
VALVE GUIDE REPLACEMENT .......................240
VALVE SEAT CONTACT ...................................242
VALVE SEAT REPLACEMENT .........................242
VALVE SPRING SQUARENESS .......................243
VALVE SPRING DIMENSIONS AND VALVE
SPRING PRESSURE LOAD .............................243ENGINE ASSEMBLY ...............................................244
Components ..........................................................244
Removal and Installation .......................................244
REMOVAL ..........................................................245
INSTALLATION ..................................................247
INSPECTION AFTER INSTALLATION ..............247
CYLINDER BLOCK .................................................249
Components ..........................................................249
Disassembly and Assembly ..................................250
DISASSEMBLY ..................................................250
ASSEMBLY ........................................................254
How to Select Piston and Bearing ........................259
DESCRIPTION ..................................................259
HOW TO SELECT PISTON ...............................260
HOW TO SELECT CONNECTING ROD BEAR-
ING .....................................................................261
HOW TO SELECT MAIN BEARING ..................262
Inspection after Disassembly ................................266
CRANKSHAFT END PLAY ................................266
CONNECTING ROD SIDE CLEARANCE .........266
PISTON TO PISTON PIN OIL CLEARANCE .....266
PISTON RING SIDE CLEARANCE ...................267
PISTON RING END GAP ..................................267
CONNECTING ROD BEND AND TORSION .....268
CONNECTING ROD BIG END DIAMETER ......268
CONNECTING ROD BUSHING OIL CLEAR-
ANCE .................................................................268
CYLINDER BLOCK DISTORTION ....................269
MAIN BEARING HOUSING INNER DIAMETER .270
PISTON TO CYLINDER BORE CLEARANCE ..270
CRANKSHAFT MAIN JOURNAL DIAMETER ...271
CRANKSHAFT PIN JOURNAL DIAMETER ......272
CRANKSHAFT OUT-OF-ROUND AND TAPER .272
CRANKSHAFT RUNOUT ..................................272
CONNECTING ROD BEARING OIL CLEAR-
ANCE .................................................................273
MAIN BEARING OIL CLEARANCE ...................274
CRUSH HEIGHT OF MAIN BEARING ..............275
CRUSH HEIGHT OF CONNECTING ROD
BEARING ...........................................................275
DRIVE PLATE ....................................................275
SERVICE DATA AND SPECIFICATIONS (SDS) ....276
Standard and Limit ................................................276
GENERAL SPECIFICATIONS ...........................276
DRIVE BELTS ....................................................276
INTAKE MANIFOLD AND EXHAUST MANI-
FOLD .................................................................276
SPARK PLUG ....................................................277
CAMSHAFT AND CAMSHAFT BEARING .........277
CYLINDER HEAD ..............................................279
CYLINDER BLOCK ............................................282
PISTON, PISTON RING AND PISTON PIN ......283
CONNECTING ROD ..........................................284
CRANKSHAFT ...................................................285
MAIN BEARING .................................................287
CONNECTING ROD BEARING .........................288

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ENGINE ROOM COVER
Revision: 2006 January2006 M35/M45
ENGINE ROOM COVERPFP:14049
ComponentsNBS004MS
Removal and InstallationNBS004MT
REMOVAL
CAUTION:
Do not damage or scratch cover when installing or removing.
Refer to EM-19, "INTAKE MANIFOLD COLLECTOR" for removal and installation of engine cover.
Refer to EM-17, "AIR CLEANER AND AIR DUCT" for removal and installation of air duct (inlet).
Remove the washer tank cap before removing the engine room cover (RH).
Remove the engine room covers (RH and LH) by lifting the clipped point using a clip driver.
Major parts and inspection points under each cover are as follows; (numbered as in figure)
1. Upper side of engine assembly
2. Battery, relay box
3. Power steering fluid reservoir tank, engine coolant reservoir tank, relay box
4. Engine assembly front side, drive belts, cooling fan
5. Mass air flow sensor, air cleaner case
6. Brake master cylinder, brake booster
INSTALLATION
Installation is the reverse order of removal.
1. Engine cover 2. Battery cover 3. Engine room cover (RH)
4. Air duct (inlet) 5. Engine room cover (LH) 6. Brake master cylinder cover
A. Clip (secure at back surface)
PBIC3824E

INTAKE MANIFOLD COLLECTOR
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Revision: 2006 January2006 M35/M45
INTAKE MANIFOLD COLLECTORPFP:14003
ComponentsNBS004N0
Refer to GI-11, "Components" for symbol marks in the figure.
Removal and InstallationNBS004N1
REMOVAL
WAR NING :
To avoid the danger of being scalded, never drain engine coolant when the engine is hot.
Gasket for intake manifold collector (upper) is secured together with mounting bolt for intake man-
ifold collector (lower). Thus, even when only gasket for upper side is replaced, gasket for lower
side must be also replaced.
1. Vacuum hose 2.EVAP canister purge volume control
solenoid valve3. Vacuum hose
4. Bracket 5. Intake manifold collector (upper) 6. Water hose
7. Water hose 8. Gasket 9. Electric throttle control actuator
10. Bracket 11. PCV hose 12. Bracket
13. Gasket 14. Intake manifold collector (lower) 15. Gasket
16. Intake manifold collector cover
A. To vacuum pipe B. To water outlet C. To heater pipe
D. To PCV valve
KBIA3590J

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[VQ35DE]
INTAKE MANIFOLD COLLECTOR
Revision: 2006 January2006 M35/M45
1. Remove engine cover (1) with power tool.
2. Disconnect water hoses from intake manifold collector (upper), attach blind plug to prevent engine coolant
leakage.
CAUTION:
Perform this step when the engine is cold.
Do not spill engine coolant on drive belts.
3. Remove air cleaner case and air duct. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
4. Remove electric throttle control actuator as follows:
a. Disconnect harness connector.
b. Loosen mounting bolts in reverse order as shown in the figure.
CAUTION:
Handle carefully to avoid any shock to electric throttle
control actuator.
Do not disassemble.
5. Remove fuel sub-tube mounting bolt to disconnect from rear of intake manifold collector (lower). Refer to
EM-45, "
FUEL INJECTOR AND FUEL TUBE" .
6. Disconnect vacuum hose from intake manifold collector (upper).
7. Remove EVAP canister purge volume control solenoid valve and bracket mounting bolt from intake mani-
fold collector (upper).
PBIC3507E
KBIA0957E

INTAKE MANIFOLD COLLECTOR
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Revision: 2006 January2006 M35/M45
8. Loosen mounting bolts in reverse order of illustration to remove
intake manifold collector (upper) with power tool.
9. Remove PCV hose [between intake manifold collector (lower) and rocker cover (right bank)].
10. Loosen mounting bolts in reverse order as shown in the figure,
and remove intake manifold collector cover, gasket, intake man-
ifold collector (lower) and gasket with power tool.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
INSPECTION AFTER REMOVAL
Surface Distortion
Check the surface distortion of both the intake manifold collector
(upper and lower) mating surfaces with a straightedge and a
feeler gauge.
If it exceeds the limit, replace intake manifold collector (upper
and/or lower).
PBIC1094E
PBIC0774E
Limit : 0.1 mm (0.004 in)
PBIC0775E

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INTAKE MANIFOLD COLLECTOR
Revision: 2006 January2006 M35/M45
INSTALLATION
Note the following, and install in the reverse order of removal.
Part Installation Direction
Referring to front marks, install parts shown in figure.
Intake Manifold Collector (Lower)
Tighten mounting bolts in numerical order as shown in the figure.
NOTE:
Tighten mounting bolts to secure gasket (lower), intake manifold col-
lector (lower), gasket (upper), and intake manifold collector cover.
Intake Manifold Collector (Upper)
If stud bolts were removed, install them and tighten to the specified torque below.
Shank length under bolt head varies with bolt location. Install
mounting bolts while referring to numbers shown below and in
the figure. (Bolt length does not include pilot portion.)
Tighten mounting bolts in numerical order as shown in the fig-
ure.
Water Hose
Insert hose by 27 to 32 mm (1.06 to 1.26 in) from connector end.
PBIC0776E
PBIC0774E
: 5.9 Nꞏm (0.6 kg-m, 52 in-lb)
Bolt
M6
25 mm (0.98 in) : 7, 8, 10, 11, 13, 14, 15, 16, 18
M6
45 mm (1.77 in) : 2, 4, 5
M6
60 mm (2.36 in) : 1, 3, 6, 9
M6 Nut : 12, 17
PBIC1094E

INTAKE MANIFOLD COLLECTOR
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Revision: 2006 January2006 M35/M45
Clamp hose at location of 3 to 7 mm (0.12 to 0.28 in) from hose end.
Electric Throttle Control Actuator
Install gasket with positioning no-protrusion surface upward or downward.
Tighten in numerical order as shown in the figure.
Perform the “Throttle Valve Closed Position Learning” when har-
ness connector of electric throttle control actuator is discon-
nected. Refer to EC-95, "
Throttle Valve Closed Position
Learning" .
Perform the “Idle Air Volume Learning” and “Throttle Valve
Closed Position Learning” when electric throttle control actuator
is replaced. Refer to EC-96, "
Idle Air Volume Learning" and EC-
95, "Throttle Valve Closed Position Learning" .
KBIA0957E

EM-24
[VQ35DE]
INTAKE MANIFOLD
Revision: 2006 January2006 M35/M45
INTAKE MANIFOLDPFP:14003
ComponentsNBS004N2
Removal and InstallationNBS004N3
REMOVAL
1. Release fuel pressure. Refer to EC-98, "FUEL PRESSURE RELEASE" .
2. Remove intake manifold collectors (upper and lower). Refer to EM-19, "
INTAKE MANIFOLD COLLEC-
TOR" .
3. Remove fuel tube and fuel injector assembly. Refer to EM-45, "
FUEL INJECTOR AND FUEL TUBE" .
4. Loosen mounting bolts and nuts in reverse order as shown in
the figure to remove intake manifold with power tool.
5. Remove gaskets.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
1. Harness bracket 2. Intake manifold 3. Gasket
SBIA0487E
PBIC0778E

INTAKE MANIFOLD
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INSPECTION AFTER REMOVAL
Surface Distortion
Check the surface distortion of the intake manifold mating sur-
face with a straightedge and a feeler gauge.
If it exceeds the limit, replace intake manifold.
INSTALLATION
Note the following, and install in the reverse order of removal.
Intake Manifold
If stud bolts were removed, install them and tighten to the specified torque below.
Tighten all mounting bolts and nuts to the specified torque in two
or more steps in numerical order shown in the figure.Limit : 0.1 mm (0.004 in)
PBIC0870E
: 10.8 Nꞏm (1.1 kg-m, 8 ft-lb)
1st step:
: 7.4 Nꞏm (0.75 kg-m, 5 ft-lb)
2nd step and after:
: 29.0 Nꞏm (3.0 kg-m, 21 ft-lb)
PBIC0778E