spark INFINITI M35 2006 Factory Repair Manual

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CYLINDER HEAD
Revision: 2006 January2006 M35/M45
If the engine speed is out of specified range, check battery liquid for proper gravity. Check engine
speed again with normal battery gravity.
If compression pressure is below minimum value, check valve clearances and parts associated with
combustion chamber (valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure compression pressure again.
If some cylinders have low compression pressure, pour small amount of engine oil into the spark plug
hole of the cylinder to re-check it for compression.
–If the added engine oil improves the compression, piston rings may be worn out or damaged. Check the
piston rings and replace if necessary.
–If the compression pressure remains at low level despite the addition of engine oil, valves may be mal-
functioning. Check valves for damage. Replace valve or valve seat accordingly.
If two adjacent cylinders have respectively low compression pressure and their compression remains
low even after the addition of engine oil, cylinder head gaskets are leaking. In such a case, replace cyl-
inder head gaskets.
8. After inspection is completed, install removed parts in the reverse order of removal.
9. Start engine, and make sure that engine runs smoothly.
10. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-811, "
TROUBLE DIAGNOSIS" .
ComponentsNBS004PG
Removal and InstallationNBS004PH
REMOVAL
1. Remove engine assembly from vehicle. Refer to EM-244, "ENGINE ASSEMBLY" .
2. Remove exhaust manifold. Refer to EM-183, "
EXHAUST MANIFOLD AND THREE WAY CATALYST" .
3. Remove camshaft. Refer to EM-215, "
CAMSHAFT" .
1. Engine coolant temperature sensor 2. Washer 3. Cylinder head gasket (left bank)
4. Harness bracket 5. Cylinder head (right bank) 6. Cylinder head bolt
7. Cylinder head gasket (right bank) 8. Cylinder head bolt 9. Cylinder head (left bank)
PBIC2756E

CYLINDER HEAD
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Disassembly and AssemblyNBS004PI
COMPONENTS
DISASSEMBLY
1. Remove spark plug with spark plug wrench (commercial service tool).
2. Remove adjusting shim and valve lifter.
Identify installation positions, and store them without mixing them up.
3. Remove valve collet.
Compress valve spring with valve spring compressor, attach-
ment and adapter (SST). Remove valve collet with magnetic
hand.
CAUTION:
When working, take care not to damage valve lifter holes.
4. Remove valve spring retainer and valve spring (with valve spring seat).
CAUTION:
Do not remove valve spring seat from valve spring.
5. Push valve stem to combustion chamber side, and remove valve.
1. Spark plug 2. Adjusting shim 3. Valve lifter
4. Valve collet 5. Valve spring retainer 6. Valve spring (with valve spring seat)
7. Valve oil seal 8. Valve guide 9. Valve seat
10. Valve (INT) 11. Valve (EXH) 12. Cylinder head (left bank)
13. Spark plug tube 14. Cylinder head (right bank)
PBIC2757E
PBIC2360E

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CYLINDER HEAD
Revision: 2006 January2006 M35/M45
Identify installation positions, and store them without mixing them up.
6. Remove valve oil seal with valve oil seal puller (SST).
7. If valve seat must be replaced, refer to EM-242, "
VALVE SEAT REPLACEMENT" .
8. If valve guide must be replaced, refer to EM-240, "
VALVE GUIDE REPLACEMENT" .
9. Remove spark plug tube, as necessary.
Using pair of pliers, pull spark plug tube out of cylinder head.
CAUTION:
Take care not to damage cylinder head.
Once removed, spark plug tube will be deformed and cannot be reused. Do not remove it unless
absolutely necessary.
ASSEMBLY
1. When valve guide is removed, install it. Refer to EM-240, "VALVE GUIDE REPLACEMENT" .
2. When valve seat is removed, install it. Refer to EM-242, "
VALVE SEAT REPLACEMENT" .
3. Install new valve oil seal as follows:
a. Apply new engine oil on valve oil seal joint and seal lip.
b. Install with valve oil seal drift (SST) to match dimension in the
figure.
4. Install valve.
Install in the original position.
NOTE:
Larger diameter valves are for intake side.
5. Install valve spring (with valve spring seat).
Install smaller pitch (valve spring seat side) to cylinder head
side.
6. Install valve spring retainer.
PBIC0072E
PBIC0073E
PBIC0074E

CYLINDER HEAD
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7. Install valve collet.
Compress valve spring with valve spring compressor, attach-
ment and adapter (SST). Install valve collet with magnetic
hand.
CAUTION:
When working, take care not to damage valve lifter holes.
Tap stem edge lightly with plastic hammer after installation to
check its installed condition.
8. Install valve lifter and adjusting shim.
Install it in the original position.
9. Install spark plug tube.
Press-fit spark plug tube as follows:
a. Remove old liquid gasket adhering to cylinder-head mounting hole.
b. Apply sealant to area within approximately 12 mm (0.47 in) from edge of spark plug tube press-fit side.
Use Genuine High Strength Locking Sealant or equivalent. Refer to GI-48, "
RECOMMENDED
CHEMICAL PRODUCTS AND SEALANTS" .
c. Using drift, press-fit spark plug tube so that its height “H” is as
specified in the figure.
CAUTION:
When press-fitting, take care not to deform spark plug
tube.
After press-fitting, wipe off liquid gasket protruding onto
cylinder head upper face.
10. Install spark plug with spark plug wrench (commercial service tool).
Inspection after DisassemblyNBS004PJ
VALVE DIMENSIONS
Check the dimensions of each valve. For the dimensions, refer
to EM-280, "
Valve Dimensions" .
If the dimensions are out of the standard, replace valve and
check the valve seat contact. Refer to EM-242, "
VA LV E S E AT
CONTACT" .
PBIC2360E
Standard press-fit height “H” :
: 38.4 - 39.4 mm (1.512 - 1.551 in)
PBIC2638E
SEM188A

SERVICE DATA AND SPECIFICATIONS (SDS)
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SPARK PLUG
Unit: mm (in)
CAMSHAFT AND CAMSHAFT BEARING
Unit: mm (in)
*: Total indicator reading
Va l v e L i f t e r
Unit: mm (in)
Valve Clearance
Unit: mm (in)
*: Approximately 80
C (176F) MakeNGK
Standard typePLFR5A-11
Hot typePLFR4A-11
Cold typePLFR6A-11
Gap (Nominal)1.1 (0.043)
ItemsStandard Limit
Camshaft journal clearanceNo. 1 0.045 - 0.083 (0.0018 - 0.0033) —
No. 2, 3, 4, 5 0.030 - 0.068 (0.0012 - 0.0027) —
Camshaft journal diameterNo. 1 25.938 - 25.955 (1.0212 - 1.0218) —
No. 2, 3, 4, 5 25.953 - 25.970 (1.0218 - 1.0224) —
Camshaft bracket inner diameter 26.000 - 26.021 (1.0236 - 1.0244)—
Camshaft end play 0.115 - 0.188 (0.0045 - 0.0074) —
Cam height “A”Intake 44.865 - 45.055 (1.7663 - 1.7738) 0.2 (0.008)
Exhaust 43.925 - 44.115 (1.7293 - 1.7368) 0.2 (0.008)
Camshaft runout [TIR*] 0.02 (0.001) 0.05 (0.002)
Camshaft sprocket runout [TIR*] — 0.15 (0.059)
SEM671
ItemsStandard
Valve lifter outer diameter 33.965 - 33.975 (1.3372 - 1.3776)
Valve lifter hole diameter 34.000 - 34.016 (1.3386 - 1.3392)
Valve lifter clearance 0.025 - 0.051 (0.0010 - 0.0020)
Items Cold Hot* (reference data)
Intake 0.26 - 0.34 (0.010 - 0.013) 0.304 -0.416 (0.012 - 0.016)
Exhaust 0.29 - 0.37 (0.011 - 0.015) 0.308 - 0.432 (0.012 - 0.017)

FUEL SYSTEM
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FUEL SYSTEMPFP:17503
Checking Fuel LinesNBS005R8
Inspect fuel lines, fuel filler cap and fuel tank for improper attach-
ment, leaks, cracks, damage, loose connections, chafing or deterio-
ration.
If necessary, repair or replace damaged parts.
General PrecautionsNBS005R9
WAR NING :
When replacing fuel line parts, be sure to observe the following.
Put a “CAUTION: FLAMMABLE” sign in the workshop.
Be sure to work in a well ventilated area and furnish workshop with a CO2 fire extinguisher.
Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.
CAUTION:
Use gasoline required by the regulations for octane number. Refer to GI-6, "Precautions for Fuel
(Unleaded Premium Gasoline Required)" .
Before removing fuel line parts, perform out the following procedures:
–Put drained fuel in an explosion-proof container and put the lid on securely. Keep the container in
safe area.
–Release fuel pressure from the fuel lines. Refer to EC-98, "FUEL PRESSURE RELEASE" (VQ35DE)
or EC-809, "
FUEL PRESSURE RELEASE" (VK45DE).
–Disconnect the battery cable from the negative terminal.
Always replace O-ring and clamps with new ones.
Do not kink or twist tubes when they are being installed.
Do not tighten hose clamps excessively to avoid damaging hoses.
After connecting fuel tube quick connectors, make sure
quick connectors are secure.
Ensure that connector and resin tube do not contact any
adjacent parts.
After installing tubes, make sure there is no fuel leakage at
connections in the following steps.
–Apply fuel pressure to fuel lines with turning ignition switch
“ON” (with engine stopped). Then check for fuel leaks at
connections.
–Start engine and rev it up and check for fuel leaks at con-
nections.
Use only a genuine NISSAN fuel filler cap as a replacement.
If an incorrect fuel filler cap is used, the “MIL” may come
on.
For servicing “Evaporative Emission System” parts, refer to
EC-39, "
EVAPORATIVE EMISSION SYSTEM" (VQ35DE) or
EC-749, "
EVAPORATIVE EMISSION SYSTEM" (VK45DE).
For servicing“On Board Refueling Vapor Recovery (ORVR)”
parts, refer to EC-46, "
ON BOARD REFUELING VAPOR
RECOVERY (ORVR)" (VQ35DE) or EC-756, "ON BOARD
REFUELING VAPOR RECOVERY (ORVR)" (VK45DE).
SMA803A
SBIA0504E

GI-6
PRECAUTIONS
Revision: 2006 January2006 M35/M45
Before servicing the vehicle:
Protect fenders, upholstery and carpeting with appropriate cov-
ers.
Take caution that keys, buckles or buttons do not scratch paint.
WAR NING :
To prevent ECM from storing the diagnostic trouble codes, do not carelessly disconnect the harness
connectors which are related to the engine control system and TCM (transmission control module)
system. The connectors should be disconnected only when working according to the WORK FLOW of
TROUBLE DIAGNOSES in EC and AT sections.
Precautions for Three Way CatalystNAS00079
If a large amount of unburned fuel flows into the catalyst, the catalyst temperature will be excessively high. To
prevent this, follow the instructions.
Use unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.
When checking for ignition spark or measuring engine compression, make tests quickly and only when
necessary.
Do not run engine when the fuel tank level is low, otherwise the engine may misfire, causing damage to
the catalyst.
Do not place the vehicle on flammable material. Keep flammable material off the exhaust pipe and the three
way catalyst.
Precautions for Fuel (Unleaded Premium Gasoline Recommended)NAS0007A
Use unleaded regular gasoline with an octane rating of at least 87 AKI (Anti-Knock Index) number (Research
octane number 91).
For improved vehicle performance, NISSAN/INFINITI recommend the use of unleaded premium gasoline with
an octane rating of at least 91 AKI number (Research octane number 96).
CAUTION:
Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Do not use E-85
fuel (85% fuel ethanol, 15% unleaded gasoline) unless the vehicle is specifically designed for E-85 fuel
(i.e. Flexible Fuel Vehicle - FFV models). Using a fuel other than that specified could adversely affect
the emission control devices and systems, and could also affect the warranty coverage validity.
Precautions for Fuel (Unleaded Premium Gasoline Required)NAS0007B
Use unleaded premium gasoline with an octane rating of at least 91 AKI (Anti-Knock Index) number (Research
octane number 96).
If unleaded premium gasoline is not available, unleaded regular gasoline with an octane rating of at least 87
AKI number (Research octane number 91) can be used, but only under the following precautions:
have the fuel tank filled only partially with unleaded regular gasoline, and fill up with unleaded premium
gasoline as soon as possible.
avoid full throttle driving and abrupt acceleration.
However, for maximum vehicle performance, the use of unleaded premium gasoline is recommended.
CAUTION:
Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Do not use E-85
fuel (85% fuel ethanol, 15% unleaded gasoline) unless the vehicle is specifically designed for E-85 fuel
SGI234

IDX-7
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IDX
ALPHABETICAL INDEX
LT-266
Rear disc brake ................................................. BR-29
Rear door ............................................ BL-190, GW-67
Rear parcel shelf finisher ..................................... EI-42
Rear seat ......................................................... SE-172
Rear seat belt .................................................... SB-32
Rear suspension ............................................... RSU-5
Rear window ..................................................... GW-61
Rear window defogger ...................................... GW-73
Refrigerant connection precaution ..................... ATC-7
Refrigerant discharging evacuating charging ATC-151
Refrigerant general precaution .......................... ATC-7
Refrigerant lines ............................................ ATC-151
Refrigerant pressure sensor ........... EC-692, EC-1434,
ATC-98
, ATC-167
Refrigeration cycle ........................................... ATC-20
Removal and installation (A/T) ........... AT-271, AT-275
Removal and installation (Transfer) .................... TF-44
Reverse interlock door mirror ........................... GW-96
Revolution sensor (A/T) ...................... AT-119, AT-261
Rocker cover(VK45DE) ................................... EM-199
Rocker cover(VQ35DE) ..................................... EM-51
Room lamp - See Interior lamp ......................... LT-267
ROOM/L - Wiring diagram ................................ LT-274
RP/SEN - Wiring diagram ................ EC-693, EC-1435
S
SAE J1979 - Service $01 - 09 ............. EC-54
, EC-764
SEAT - Wiring diagram ...................................... SE-98
Seat belt inspection ........................................... SB-33
Seat belt, front ................................................... SB-30
Seat belt, rear .................................................... SB-32
Seat, rear ......................................................... SE-172
Self-diagnosis (Transfer) .................................... TF-22
SEN/PW - Wiring diagram ............... EC-500, EC-1219
SHIFT - Wiring diagram ................................... AT-230
Shift lock system .............................................. AT-229
Shock absorber (rear) ..................................... RSU-10
Side air bag (satellite) sensor .......................... SRS-46
Side curtain air bag .......................................... SRS-43
Side trim .............................................................. EI-37
SMJ (super multiple junction) .......................... PG-106
Spark plug replacement ..................................... MA-27
Spark plug replacement(VQ35DE) .................... MA-20
Spark plug(VK45DE) ....................................... EM-191
Spark plug(VQ35DE) ......................................... EM-43
Specification value ............................. EC-155, EC-868
Speedometer ........................................................ DI-5
Spiral cable ...................................................... SRS-40
SROOF - Wiring diagram .................................. RF-13
SRS - See Supplemental Restraint System ...... SRS-5
SRS - Wiring diagram ...................................... SRS-12
SRS Trouble diagnoses ..................................... SRS-8
Stabilizer bar (rear) ......................................... RSU-17
Stall test (A/T) .................................................... AT-53
Standardized relay ........................................... PG-109
START - Wiring diagram ................................... SC-11
Starter ................................................................ SC-10
Starting system .................................................. SC-10
Steering gear and linkage inspection ................ MA-36
Steering linkage ................................................. PS-18
Steering wheel and column ................... PS-10, PS-13
Steering wheel turning force .............................. PS-10
Stop lamp .......................................................... LT-243
Stop lamp switch .............................. EC-598, EC-1329
STSIG - Wiring diagram ................................... AT-109
Sun roof, electric ................................................ RF-10
Sunload sensor ............................. ATC-119, ATC-128
Sunroof .................................................. RF-25, RF-28
Sunshade ............................................................ EI-44
Supplemental Restraint System ....................... SRS-5
Supplemental restraint system - Wiring diagram ..........
SRS-12
Suspension ....................................................... MA-37
Symbols and abbreviations ...................... GI-11, GI-24
System readiness test (SRT) code ...... EC-60, EC-770
T
Tachometer ........................................................... DI-5
Tail lamp ........................................................... LT-249
TCM circuit diagram ........................................... AT-52
TCM inspection table ......................................... AT-89
Thermostat(VK45DE) ....................................... CO-55
Thermostat(VQ35DE) ....................................... CO-29
Three way catalyst function (Bank 1) EC-392, EC-1113
Three way catalyst function (Bank 2) EC-392, EC-1113
Three way catalyst precautions ............................ GI-6
Three way catalyst(VK45DE) .......................... EM-183
Throttle control motor ....................... EC-619, EC-1351
Throttle control motor relay .............. EC-607, EC-1338
Throttle position sensor (TPS) .......... EC-231, EC-354,
EC-533
, EC-535, EC-640, EC-954, EC-1077, EC-1259,
EC-1261
, EC-1372
Throttle valve closed position learning . EC-95, EC-806
Tie-rod ............................................................... PS-18
Timing chain(VK45DE) ................................... EM-203
Timing chain(VQ35DE) ..................................... EM-64
Tire rotation ....................................................... MA-35
TLID - Wiring diagram ...................................... BL-211
Top tether strap child restraint ........................... SB-37
Torque converter installation ............. AT-274, AT-277
Torque convertor clutch solenoid valve AT-126, AT-128
TPS1 - Wiring diagram .................... EC-356, EC-1079
TPS2 - Wiring diagram ...................... EC-233, EC-956
TPS3 - Wiring diagram .................... EC-642, EC-1374
Transfer control unit inspection table ................. TF-20
TRNSCV - Wiring diagram ............................... BL-281
Trouble diagnoses .............................................. GI-12
Trunk lid ........................................................... BL-203
Trunk lid opener - See Trunk lid ...................... BL-209
TURN - Wiring diagram .................................... LT-215
Turn signal lamp ............................................... LT-211
Two trip detection logic ........................ EC-54, EC-764
Tyre pressure monitoring system - trouble diagnoses ..
WT-13

MA-1
MAINTENANCE
L MAINTENANCE
CONTENTS
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SECTION MA
A
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MAINTENANCE
PREPARATION ........................................................... 3
Special Service Tools ............................................... 3
Commercial Service Tools ........................................ 3
GENERAL MAINTENANCE ....................................... 4
Explanation of General Maintenance ....................... 4
PERIODIC MAINTENANCE ....................................... 7
Introduction of Periodic Maintenance ....................... 7
Schedule 1 ............................................................... 8
EMISSION CONTROL SYSTEM MAINTE-
NANCE .................................................................. 8
CHASSIS AND BODY MAINTENANCE ............... 9
Schedule 2 ............................................................. 10
EMISSION CONTROL SYSTEM MAINTE-
NANCE ................................................................ 10
CHASSIS AND BODY MAINTENANCE .............. 11
RECOMMENDED FLUIDS AND LUBRICANTS ...... 12
Fluids and Lubricants ............................................. 12
SAE Viscosity Number ........................................... 13
GASOLINE ENGINE OIL .................................... 13
Anti-Freeze Coolant Mixture Ratio ......................... 13
ENGINE MAINTENANCE (VQ35DE ENGINE) ......... 14
Checking Drive Belts .............................................. 14
Drive Belts Tension Adjustment ............................. 14
ALTERNATOR AND POWER STEERING OIL
PUMP BELT ........................................................ 15
A/C COMPRESSOR BELT ................................. 15
Changing Engine Coolant ...................................... 15
DRAINING ENGINE COOLANT ......................... 15
REFILLING ENGINE COOLANT ........................ 16
FLUSHING COOLING SYSTEM ......................... 17
Checking Fuel Lines ............................................ ... 18
Changing Air Cleaner Filter .................................... 18
VISCOUS PAPER TYPE ..................................... 18
Changing Engine Oil .............................................. 18
Changing Oil Filter ................................................. 19
REMOVAL ........................................................
... 19
INSTALLATION ................................................... 19
INSPECTION AFTER INSTALLATION ............... 20
Changing Spark Plugs (Platinum-Tipped Type) ..... 20
REMOVAL ........................................................
... 20INSPECTION AFTER REMOVAL ....................... 21
INSTALLATION ................................................... 21
Checking EVAP Vapor Lines .................................. 21
ENGINE MAINTENANCE (VK45DE ENGINE) ......... 22
Checking Drive Belts .............................................. 22
Tension Adjustment .............................................
... 22
Changing Engine Coolant ....................................... 22
DRAINING ENGINE COOLANT .......................... 22
REFILLING ENGINE COOLANT ......................... 23
FLUSHING COOLING SYSTEM ......................... 24
Checking Fuel Lines ............................................ ... 25
Changing Air Cleaner Filter .................................... 25
VISCOUS PAPER TYPE ..................................... 25
Changing Engine Oil ............................................
... 25
Changing Oil Filter .................................................. 26
REMOVAL ........................................................
... 26
INSTALLATION ................................................... 26
INSPECTION AFTER INSTALLATION ................ 27
Changing Spark Plugs (Platinum-Tipped Type) ...... 27
REMOVAL ........................................................
... 27
INSPECTION AFTER REMOVAL ....................... 27
INSTALLATION ................................................... 28
Checking EVAP Vapor Lines .................................. 28
CHASSIS AND BODY MAINTENANCE ................... 29
Checking Exhaust System ...................................... 29
Checking A/T Fluid ................................................. 29
Changing A/T Fluid ................................................. 31
Checking Transfer Fluid ......................................... 31
Changing Transfer Fluid ......................................... 32
Checking Propeller Shaft ........................................ 32
Checking Differential Gear Oil ................................ 32
Changing Differential Gear Oil ................................ 33
Balancing Wheels (Bonding Weight Type) ............. 33
REMOVAL ........................................................
... 33
WHEEL BALANCE ADJUSTMENT ..................... 33
Tire Rotation ........................................................... 35
Checking Brake Fluid Level and Leaks .................. 35
Checking Brake Lines and Cables ......................... 35
Changing Brake Fluid ............................................. 35
Checking Disc Brake .............................................. 36

MA-2Revision: 2006 January2006 M35/M45 ROTOR ................................................................ 36
CALIPER ............................................................. 36
PAD ..................................................................... 36
Checking Steering Gear and Linkage ..................... 36
STEERING GEAR ............................................... 36
STEERING LINKAGE .......................................... 36
Checking Power Steering Fluid and Lines .............. 37
Axle and Suspension Parts ..................................... 37
Drive Shaft .............................................................. 38
Lubricating Locks, Hinges and Hood Latch ............ 38
Checking Seat Belt, Buckles, Retractors, Anchors
and Adjusters .......................................................... 39
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 40
Standard and Limit .................................................. 40
BELT DEFLECTION AND TENSION (VQ35DE) ... 40
BELT DEFLECTION AND TENSION (VK45DE) ... 40
ENGINE COOLANT CAPACITY (APPROXI-MATE) (VQ35DE) ................................................ 40
ENGINE COOLANT CAPACITY (APPROXI-
MATE) (VK45DE) ................................................. 40
RADIATOR ........................................................... 40
ENGINE OIL CAPACITY (APPROXIMATE)
(VQ35DE) ............................................................ 40
ENGINE OIL CAPACITY (APPROXIMATE)
(VK45DE) ............................................................. 41
SPARK PLUG (PLATINUM-TIPPED TYPE)
(VQ35DE) ............................................................ 41
SPARK PLUG (PLATINUM-TIPPED TYPE)
(VK45DE) ............................................................. 41
WHEEL BALANCE .............................................. 41