checking oil INFINITI M35 2006 Factory Owner's Guide
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Page 2632 of 5621
![INFINITI M35 2006 Factory Owners Guide DTC P0300 - P0308 MULTIPLE CYLINDER MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
EC-1089
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6. CHECK FUNCTION OF IGNITION COIL-I
CAUTION:
Do](/img/42/57023/w960_57023-2631.png "INFINITI M35 2006 Factory Owners Guide DTC P0300 - P0308 MULTIPLE CYLINDER MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
EC-1089
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6. CHECK FUNCTION OF IGNITION COIL-I
CAUTION:
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DTC P0300 - P0308 MULTIPLE CYLINDER MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
EC-1089
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6. CHECK FUNCTION OF IGNITION COIL-I
CAUTION:
Do the following procedure in the place where ventilation is good without the combustible.
1. Turn ignition switch OFF.
2. Remove fuel pump fuse (1) in IPDM E/R (2) to release fuel pres-
sure.
NOTE:
Do not use CONSULT-II to release fuel pressure, or fuel pres-
sure applies again during the following procedure.
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel
pressure.
5. Turn ignition switch OFF.
6. Remove all ignition coil harness connectors to avoid the electri-
cal discharge from the ignition coils.
7. Remove ignition coil and spark plug of the cylinder to be checked.
8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
9. Connect spark plug and harness connector to ignition coil.
10. Fix ignition coil using a rope etc. with gap of 13 - 17 mm
between the edge of the spark plug and grounded metal portion
as shown in the figure.
11. Crank engine for about 3 seconds, and check whether spark is
generated between the spark plug and the grounded metal por-
tion.
CAUTION:
Do not approach to the spark plug and the ignition coil
within 50cm. Be careful not to get an electrical shock
while checking, because the electrical discharge voltage
becomes 20kV or more.
It might cause to damage the ignition coil if the gap of more than 17 mm is taken.
NOTE:
When the gap is less than 13 mm, the spark might be generated even if the coil is malfunctioning.
OK or NG
OK >> GO TO 10.
NG >> GO TO 7.
7. CHECK FUNCTION OF IGNITION COIL-II
1. Turn ignition switch OFF.
2. Disconnect spark plug and connect a known-good spark plug.
3. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and
the grounded metal portion.
OK or NG
OK >> GO TO 8.
NG >> Check ignition coil, power transistor and their circuits. Refer to EC-1407, "
IGNITION SIGNAL" . Spark should be generated.
PBIB2697E
PBIB2325E
Spark should be generated.
Page 2633 of 5621
![INFINITI M35 2006 Factory Owners Guide EC-1090
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DTC P0300 - P0308 MULTIPLE CYLINDER MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
Revision: 2006 January2006 M35/M45
8. CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
OK or N](/img/42/57023/w960_57023-2632.png "INFINITI M35 2006 Factory Owners Guide EC-1090
[VK45DE]
DTC P0300 - P0308 MULTIPLE CYLINDER MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
Revision: 2006 January2006 M35/M45
8. CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
OK or N")
EC-1090
[VK45DE]
DTC P0300 - P0308 MULTIPLE CYLINDER MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
Revision: 2006 January2006 M35/M45
8. CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
OK or NG
OK >> Replace spark plug(s) with standard type one(s). For
spark plug type, refer to EM-191, "
SPARK PLUG (PLAT-
INUM-TIPPED TYPE)" .
NG >> 1. Repair or clean spark plug.
2. GO TO 9.
9. CHECK FUNCTION OF IGNITION COIL-III
1. Reconnect the initial spark plugs.
2. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and
the grounded portion.
OK or NG
OK >>INSPECTION END
NG >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-191, "
SPARK
PLUG (PLATINUM-TIPPED TYPE)" .
10. CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-233, "
CHECKING COMPRESSION PRESSURE" .
OK or NG
OK >> GO TO 11.
NG >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
11 . CHECK FUEL PRESSURE
1. Install all removed parts.
2. Release fuel pressure to zero. Refer to EC-809, "
FUEL PRESSURE RELEASE" .
3. Install fuel pressure gauge and check fuel pressure. Refer to EC-809, "
FUEL PRESSURE CHECK" .
OK or NG
OK >> GO TO 13.
NG >> GO TO 12.
12. DETECT MALFUNCTIONING PART
Check the following.
Fuel pump and circuit (Refer to EC-1427, "FUEL PUMP" .)
Fuel pressure regulator (Refer to EC-809, "FUEL PRESSURE CHECK" .)
Fuel lines
Fuel filter for clogging
>> Repair or replace.
SEF156I
Spark should be generated.
At idle: Approximately 350 kPa (3.57 kg/cm
2 , 51 psi)
Page 2659 of 5621
![INFINITI M35 2006 Factory Owners Guide EC-1116
[VK45DE]
DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2006 January2006 M35/M45
5. CHECK FUEL INJECTORS
1. Stop engine and then turn ignition switch ON.
2. Check voltage between EC](/img/42/57023/w960_57023-2658.png "INFINITI M35 2006 Factory Owners Guide EC-1116
[VK45DE]
DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2006 January2006 M35/M45
5. CHECK FUEL INJECTORS
1. Stop engine and then turn ignition switch ON.
2. Check voltage between EC")
EC-1116
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DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2006 January2006 M35/M45
5. CHECK FUEL INJECTORS
1. Stop engine and then turn ignition switch ON.
2. Check voltage between ECM terminals 21, 22, 23, 40, 41, 42,
44, 63 and ground with CONSULT-II or tester.
Refer to Wiring Diagram for fuel injectors, EC-1421, "
Wiring Dia-
gram" .
OK or NG
OK >> GO TO 6.
NG >> Perform EC-1422, "
Diagnostic Procedure" .
6. CHECK FUNCTION OF IGNITION COIL-I
CAUTION:
Do the following procedure in the place where ventilation is good without the combustible.
1. Turn ignition switch OFF.
2. Remove fuel pump fuse (1) in IPDM E/R (2) to release fuel pres-
sure.
NOTE:
Do not use CONSULT-II to release fuel pressure, or fuel pres-
sure applies again during the following procedure.
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel
pressure.
5. Turn ignition switch OFF.
6. Remove all ignition coil harness connectors to avoid the electri-
cal discharge from the ignition coils.
7. Remove ignition coil and spark plug of the cylinder to be checked.
8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
9. Connect spark plug and harness connector to ignition coil.
10. Fix ignition coil using a rope etc. with gap of 13 - 17 mm
between the edge of the spark plug and grounded metal portion
as shown in the figure.
11. Crank engine for about 3 seconds, and check whether spark is
generated between the spark plug and the grounded metal por-
tion.
CAUTION:
Do not approach to the spark plug and the ignition coil
within 50cm. Be careful not to get an electrical shock
while checking, because the electrical discharge voltage
becomes 20kV or more.
It might cause to damage the ignition coil if the gap of more than 17 mm is taken.
NOTE:
When the gap is less than 13 mm, the spark might be generated even if the coil is malfunctioning.
OK or NG
OK >> GO TO 10.
NG >> GO TO 7.Battery voltage should exist.
PBIB1527E
Spark should be generated.
PBIB2697E
PBIB2325E
Page 2961 of 5621
![INFINITI M35 2006 Factory Owners Guide EC-1418
[VK45DE]
IGNITION SIGNAL
Revision: 2006 January2006 M35/M45
3. Check resistance between ignition coil terminals as follows.
4. If NG, replace ignition coil with power transistor.
If OK, go to](/img/42/57023/w960_57023-2960.png "INFINITI M35 2006 Factory Owners Guide EC-1418
[VK45DE]
IGNITION SIGNAL
Revision: 2006 January2006 M35/M45
3. Check resistance between ignition coil terminals as follows.
4. If NG, replace ignition coil with power transistor.
If OK, go to")
EC-1418
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IGNITION SIGNAL
Revision: 2006 January2006 M35/M45
3. Check resistance between ignition coil terminals as follows.
4. If NG, replace ignition coil with power transistor.
If OK, go to next step.
5. Turn ignition switch OFF.
6. Reconnect all harness connectors disconnected.
7. Remove fuel pump fuse (1) in IPDM E/R (2) to release fuel pres-
sure.
NOTE:
Do not use CONSULT-II to release fuel pressure, or fuel pres-
sure applies again during the following procedure.
8. Start engine.
9. After engine stalls, crank it two or three times to release all fuel
pressure.
10. Turn ignition switch OFF.
11. Remove all ignition coil harness connectors to avoid the electri-
cal discharge from the ignition coils.
12. Remove ignition coil and spark plug of the cylinder to be checked.
13. Crank engine for five seconds or more to remove combustion gas in the cylinder.
14. Connect spark plug and harness connector to ignition coil.
15. Fix ignition coil using a rope etc. with gap of 13 - 17 mm
between the edge of the spark plug and grounded metal portion
as shown in the figure.
16. Crank engine for about three seconds, and check whether spark
is generated between the spark plug and the grounded metal
portion.
CAUTION:
Do not approach to the spark plug and the ignition coil
within 50cm. Be careful not to get an electrical shock
while checking, because the electrical discharge voltage
becomes 20kV or more.
It might cause to damage the ignition coil if the gap of more than 17 mm is taken.
NOTE:
When the gap is less than 13 mm, the spark might be generated even if the coil is malfunctioning.
17. If NG, replace ignition coil with power transistor.
CONDENSER
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
Terminal No. (Polarity) Resistance [at 25C (77F)]
1 and 2 Except 0 or
1 and 3
Except 0
2 and 3
Spark should be generated.
PBIB0847E
PBIB2697E
PBIB2325E
Page 3064 of 5621
EM-1
ENGINE MECHANICAL
B ENGINE
CONTENTS
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SECTION EM
A
EM
Revision: 2006 January2006 M35/M45
ENGINE MECHANICAL
VQ35DE
PRECAUTIONS .......................................................... 5
Precautions for Procedures without Cowl Top Cover ..... 5
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................... 5
OPERATION PROCEDURE ................................. 5
Precautions for Drain Engine Coolant and Engine
Oil ............................................................................. 5
Precautions for Disconnecting Fuel Piping .............. 5
Precautions for Removal and Disassembly ............. 5
Precautions for Inspection, Repair and Replace-
ment ......................................................................... 6
Precautions for Assembly and Installation ............... 6
Precautions for Angle Tightening ............................. 6
Precautions for Liquid Gasket .................................. 6
REMOVAL OF LIQUID GASKET SEALING .......... 6
LIQUID GASKET APPLICATION PROCEDURE ..... 7
PREPARATION ........................................................... 8
Special Service Tools ............................................... 8
Commercial Service Tools ...................................... 10
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING .............................................. 12
NVH Troubleshooting — Engine Noise .................. 12
Use the Chart Below to Help You Find the Cause
of the Symptom. ..................................................... 13
ENGINE ROOM COVER .......................................... 14
Components ........................................................... 14
Removal and Installation ........................................ 14
REMOVAL ........................................................
... 14
INSTALLATION ................................................... 14
DRIVE BELTS ........................................................... 15
Checking Drive Belts .............................................. 15
Tension Adjustment ................................................ 15
ALTERNATOR AND POWER STEERING OIL
PUMP BELT ........................................................ 16
A/C COMPRESSOR BELT ................................. 16
Removal and Installation ........................................ 16
REMOVAL ........................................................
... 16
INSTALLATION ................................................... 16AIR CLEANER AND AIR DUCT ............................... 17
Components ........................................................... 17
Removal and Installation ........................................ 17
REMOVAL ........................................................
... 17
INSTALLATION ................................................... 17
Changing Air Cleaner Filter .................................... 18
REMOVAL ........................................................
... 18
INSTALLATION ................................................... 18
INTAKE MANIFOLD COLLECTOR .......................... 19
Components ........................................................... 19
Removal and Installation ........................................ 19
REMOVAL ........................................................
... 19
INSPECTION AFTER REMOVAL ....................... 21
INSTALLATION ................................................... 22
INTAKE MANIFOLD ................................................. 24
Components ........................................................... 24
Removal and Installation ........................................ 24
REMOVAL ........................................................
... 24
INSPECTION AFTER REMOVAL ....................... 25
INSTALLATION ................................................... 25
EXHAUST MANIFOLD ............................................. 26
Components ........................................................... 26
Removal and Installation ........................................ 26
REMOVAL ........................................................
... 26
INSPECTION AFTER REMOVAL ....................... 27
INSTALLATION ................................................... 27
OIL PAN AND OIL STRAINER ................................. 29
Components (2WD Models) ................................... 29
Removal and Installation (2WD Models) ................ 29
REMOVAL ........................................................
... 29
INSPECTION AFTER REMOVAL ....................... 31
INSTALLATION ................................................... 31
INSPECTION AFTER INSTALLATION ................ 34
Components (AWD Models) ................................... 35
Removal and Installation (AWD Models) ................ 36
REMOVAL ........................................................
... 36
INSPECTION AFTER REMOVAL ....................... 38
INSTALLATION ................................................... 38
INSPECTION AFTER INSTALLATION ................ 41
Page 3065 of 5621
EM-2Revision: 2006 January2006 M35/M45 IGNITION COIL ......................................................... 42
Components ........................................................... 42
Removal and Installation ........................................ 42
REMOVAL ........................................................
... 42
INSTALLATION .................................................... 42
SPARK PLUG (PLATINUM-TIPPED TYPE) ............. 43
Components ........................................................... 43
Removal and Installation ........................................ 43
REMOVAL ........................................................
... 43
INSPECTION AFTER REMOVAL ........................ 43
INSTALLATION .................................................... 44
FUEL INJECTOR AND FUEL TUBE ........................ 45
Components ........................................................... 45
Removal and Installation ........................................ 45
REMOVAL ........................................................
... 45
INSTALLATION .................................................... 47
INSPECTION AFTER INSTALLATION ................ 50
ROCKER COVER ..................................................... 51
Components ........................................................... 51
Removal and Installation ........................................ 51
REMOVAL ........................................................
... 51
INSTALLATION .................................................... 52
FRONT TIMING CHAIN CASE ................................. 54
Removal and Installation ........................................ 54
REMOVAL ........................................................
... 54
INSTALLATION .................................................... 58
INSPECTION AFTER INSTALLATION ................ 63
TIMING CHAIN .......................................................... 64
Components ........................................................... 64
Removal and Installation ........................................ 65
REMOVAL ........................................................
... 65
INSPECTION AFTER REMOVAL ........................ 72
INSTALLATION .................................................... 72
INSPECTION AFTER INSTALLATION ................ 82
CAMSHAFT ............................................................... 84
Components ........................................................... 84
Removal and Installation ........................................ 85
REMOVAL ........................................................
... 85
INSPECTION AFTER REMOVAL ........................ 86
INSTALLATION .................................................... 89
INSPECTION AFTER INSTALLATION ................ 92
Valve Clearance ...................................................... 93
INSPECTION ....................................................... 93
ADJUSTMENT .................................................... 96
OIL SEAL ......................................................
............ 98
Removal and Installation of Valve Oil Seal ............. 98
REMOVAL ........................................................
... 98
INSTALLATION .................................................... 98
Removal and Installation of Front Oil Seal ............. 99
REMOVAL ........................................................
... 99
INSTALLATION .................................................... 99
Removal and Installation of Rear Oil Seal .............. 99
REMOVAL ........................................................
... 99
INSTALLATION ..................................................100
CYLINDER HEAD .................................................. .101
On-Vehicle Service ...............................................101
CHECKING COMPRESSION PRESSURE .......101
Components .........................................................102Removal and Installation .......................................102
REMOVAL ..........................................................102
INSPECTION AFTER REMOVAL ......................103
INSTALLATION ..................................................104
INSPECTION AFTER INSTALLATION ..............105
Disassembly and Assembly ..................................106
COMPONENTS .................................................106
DISASSEMBLY ..................................................106
ASSEMBLY ........................................................107
Inspection after Disassembly ................................108
VALVE DIMENSIONS ........................................108
VALVE GUIDE CLEARANCE ............................108
VALVE GUIDE REPLACEMENT .......................109
VALVE SEAT CONTACT ....................................110
VALVE SEAT REPLACEMENT ..........................110
VALVE SPRING SQUARENESS ....................... 111
VALVE SPRING DIMENSIONS AND VALVE
SPRING PRESSURE LOAD ..............................112
ENGINE ASSEMBLY ...............................................113
Components (2WD Models) ..................................113
Removal and Installation (2WD Models) ...............113
REMOVAL ..........................................................114
INSTALLATION ..................................................116
INSPECTION AFTER INSTALLATION ..............117
Components (AWD Models) .................................118
Removal and Installation (AWD Models) ..............118
REMOVAL ..........................................................119
INSTALLATION ..................................................121
INSPECTION AFTER INSTALLATION ..............122
CYLINDER BLOCK .................................................123
Components ..........................................................123
Disassembly and Assembly ..................................124
DISASSEMBLY ..................................................124
ASSEMBLY ......................................................
..128
How to Select Piston and Bearing ........................135
DESCRIPTION ..................................................135
HOW TO SELECT PISTON ...............................135
HOW TO SELECT CONNECTING ROD BEAR-
ING .....................................................................136
HOW TO SELECT MAIN BEARING ..................137
Inspection after Disassembly ................................140
CRANKSHAFT END PLAY ................................140
CONNECTING ROD SIDE CLEARANCE .........140
PISTON TO PISTON PIN OIL CLEARANCE .....140
PISTON RING SIDE CLEARANCE ...................141
PISTON RING END GAP ..................................141
CONNECTING ROD BEND AND TORSION .....142
CONNECTING ROD BIG END DIAMETER ......142
CONNECTING ROD BUSHING OIL CLEAR-
ANCE .................................................................142
CYLINDER BLOCK DISTORTION ....................143
MAIN BEARING HOUSING INNER DIAMETER .144
PISTON TO CYLINDER BORE CLEARANCE ..144
CRANKSHAFT MAIN JOURNAL DIAMETER ...145
CRANKSHAFT PIN JOURNAL DIAMETER ......146
CRANKSHAFT OUT-OF-ROUND AND TAPER .146
CRANKSHAFT RUNOUT ..................................146
CONNECTING ROD BEARING OIL CLEAR-
Page 3066 of 5621
EM-3
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EMA
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
Page 3067 of 5621
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
Page 3078 of 5621
![INFINITI M35 2006 Factory Owners Guide DRIVE BELTS
EM-15
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Revision: 2006 January2006 M35/M45
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WAR NING :
Be sure to perform when engine is stopped.
1. Inspe](/img/42/57023/w960_57023-3077.png "INFINITI M35 2006 Factory Owners Guide DRIVE BELTS
EM-15
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Revision: 2006 January2006 M35/M45
DRIVE BELTSPFP:02117
Checking Drive BeltsNBS004MU
WAR NING :
Be sure to perform when engine is stopped.
1. Inspe")
DRIVE BELTS
EM-15
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Revision: 2006 January2006 M35/M45
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Checking Drive BeltsNBS004MU
WAR NING :
Be sure to perform when engine is stopped.
1. Inspect belts for cracks, fraying, wear and oil. If necessary, replace.
2. Inspect drive belt deflection or tension at a point on belt midway
between pulleys.
Inspection should be done only when engine is cold, or over
30 minutes after engine is stopped.
Measure the belt tension with belt tension gauge (Commercial
service tool: BT3373-F or equivalent) at points marked
shown in the figure.
When measuring the deflection, apply 98 N (10 kg, 22 lb) at
the marked point.
Adjust if the belt deflection exceeds the limit or if the belt ten-
sion is not within specifications.
CAUTION:
When checking the belt deflection or the tension immediately after installation, first adjust it to
the specified value. Then, after turning crankshaft two turns or more, re-adjust to the specified
value to avoid variation in deflection between pulleys.
Tighten idler pulley lock nut by hand and measure the deflection or the tension without loose-
ness.
Belt Deflection and Tension
*: If belt tension gauge cannot be installed at check points shown, check drive belt tension at different location on belt.
Tension AdjustmentNBS004MV
CAUTION:
When belt is replaced with a new one, adjust it to value for “New belt” to accommodate for insuffi-
cient adaptability with pulley grooves.
When deflection or tension of belt being used exceeds “Limit”, adjust it to value for “After adjust-
ment”.
When checking belt deflection or tension immediately after installation, first adjust it to the speci-
fied value. Then, after turning crankshaft two turns or more, re-adjust to the specified value to
avoid variation in deflection between pulleys.
When installing belt, make sure that it is correctly engaged with pulley grooves.
Keep engine oil, working fluid and engine coolant away from belt and pulley grooves.
Do not twist or bend belt excessively.
KBIA1731J
ItemsDeflection adjustment Unit: mm (in) Tension adjustment* Unit: N (kg, lb)
Used belt
New beltUsed belt
New belt
Limit After adjustment Limit After adjustment
Alternator and
power steering
oil pump belt7 (0.28)4 - 5
(0.16 - 0.20)3.5 - 4.5
(0.138 - 0.177)294 (30, 66)730 - 818
(74.5 - 83.5,
164 - 184)838 - 926
(85.5 - 94.5,
188 - 208)
A/C compressor
belt12 (0.47)9 - 10
(0.35 - 0.39)8 - 9
(0.31 - 0.35)196 (20, 44)348 - 436
(35.5 - 44.5,
78 - 98)470 - 559
(48 - 57,
106 - 126)
Applied pushing
force98 N (10 kg, 22 lb) —
PortionBelt tightening method for adjustment
Alternator and power steering oil pump belt Adjusting bolt on idler pulley
A/C compressor belt Adjusting bolt on idler pulley
Page 3079 of 5621
![INFINITI M35 2006 Factory Owners Guide EM-16
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Revision: 2006 January2006 M35/M45
ALTERNATOR AND POWER STEERING OIL PUMP BELT
1. Remove front engine undercover with power tool.
2. Loosen idler pulley lock nut (A) a](/img/42/57023/w960_57023-3078.png "INFINITI M35 2006 Factory Owners Guide EM-16
[VQ35DE]
DRIVE BELTS
Revision: 2006 January2006 M35/M45
ALTERNATOR AND POWER STEERING OIL PUMP BELT
1. Remove front engine undercover with power tool.
2. Loosen idler pulley lock nut (A) a")
EM-16
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Revision: 2006 January2006 M35/M45
ALTERNATOR AND POWER STEERING OIL PUMP BELT
1. Remove front engine undercover with power tool.
2. Loosen idler pulley lock nut (A) and adjust tension by turning
adjusting bolt (B).
For the specified belt tension, refer to EM-15, "Checking Drive
Belts" .
3. Tighten nut (A).
A/C COMPRESSOR BELT
1. Remove front engine undercover with power tool.
2. Loosen idler pulley lock nut (C) and adjust tension by turning adjusting bolt (D).
For the specified belt tension, refer to EM-15, "Checking Drive Belts" .
3. Tighten nut (C).
Removal and InstallationNBS004MW
REMOVAL
1. Remove front engine undercover with power tool.
2. Remove alternator and power steering oil pump belt. Refer to EM-16, "
ALTERNATOR AND POWER
STEERING OIL PUMP BELT" .
3. Remove A/C compressor belt. Refer to EM-16, "
A/C COMPRESSOR BELT" .
CAUTION:
Grease is applied to idler pulley adjusting bolt. Be careful to keep grease away from belt.
INSTALLATION
1. Install belts to pulley in reverse order of removal.
CAUTION:
Make sure drive belt is correctly engaged with pulley groove.
Make sure that for engine oil and engine coolant do not adhere to belt and each pulley grooves.
2. Adjust belt tension. Refer to EM-15, "
Tension Adjustment" .
3. Tighten each adjusting bolt and nut to the specified torque.
4. Make sure that tension of each belt is within the standard. Refer to EM-15, "
Checking Drive Belts" . : 34.8 Nꞏm (3.5 kg-m, 26 ft-lb)
SBIA0532E
: 34.8 Nꞏm (3.5 kg-m, 26 ft-lb)