battery INFINITI FX35 2007 Service Manual

TIMING CHAIN EM-65
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Revision: 2006 July 2007 FX35/FX45
Removal and InstallationNBS003GP
NOTE:

This section describes procedures for removing/installing front timing chain case and timing chain related
parts, and rear timing chain case, when oil pan (upper) needs to be removed/installed for engine overhaul,
etc.

To remove/install front timing chain case, timing chain, and its related parts without removing oil pan
(upper), refer to EM-54, "
FRONT TIMING CHAIN CASE" .
REMOVAL
1. Remove front tire.
2. Disconnect negative battery terminal.
3. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
4. Remove air cleaner case assembly. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
5. Remove front and rear engine undercover with power tool.
6. Release the fuel pressure. Refer to EC-85, "
FUEL PRESSURE RELEASE" .
7. Drain engine coolant from radiator. Refer to CO-11, "
Changing Engine Coolant" .
CAUTION:

Perform this step when the engine is cold.

Do not spill engine coolant on drive belts.
8. Drain engine oil. Refer to LU-9, "
Changing Engine Oil" .
CAUTION:

Perform this step when the engine is cold.

Do not spill engine oil on drive belts.
9. Remove engine harnesses.
10. Remove intake manifold collectors (upper and lower). Refer to EM-19, "
INTAKE MANIFOLD COLLEC-
TOR" .
11. Remove radiator cooling fan assembly. Refer to CO-21, "
COOLING FAN" .
12. Remove drive belts. Refer to EM-15, "
DRIVE BELTS" .
13. Remove A/C compressor from bracket with piping connected, and temporarily secure it aside. Refer to ATC-139, "
Components" .
14. Remove power steering oil pump from bracket with piping connected, and temporarily secure it aside. Refer to PS-30, "
POWER STEERING OIL PUMP" .
15. Remove power steering oil pump bracket. Refer to PS-30, "
POWER STEERING OIL PUMP" .
16. Remove alternator. Refer to SC-24, "
CHARGING SYSTEM" .
17. Remove water bypass hose, water hose clamp and idler pulley bracket from front timing chain case.
18. Remove intake valve timing control covers.
1. Timing chain tensioner (secondary) 2. Internal chain guide 3. Timing chain tensioner (secondary)
4. Camshaft sprocket (EXH) 5. Timing chain (secondary) 6. Timing chain (primary)
7. Camshaft sprocket (INT) 8. Camshaft sprocket (EXH) 9. Timing chain (secondary)
10. Camshaft sprocket (INT) 11. Slack guide 12. Crankshaft sprocket
13. Timing chain tensioner (primary) 14. Intake valve timing control cover 15. Collared O-ring
16. O-ring 17. Chain tensioner cover 18. Intake valve timing control cover
19. Water hose clamp 20. Idler pulley bracket 21. Idler pulley
22. Crankshaft pulley 23. Front oil seal 24. Idler pulley
25. A/C compressor bracket 26. Water pump cover 27. Bracket
28. Front timing chain case 29. Bracket 30. Rear timing chain case
31. O-ring 32. Tension guide 33. Water drain plug (front side)

CYLINDER HEAD EM-101
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Revision: 2006 July 2007 FX35/FX45
CYLINDER HEADPFP:11041
On-Vehicle ServiceNBS003GW
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-85, "
FUEL PRESSURE RELEASE" .
3. Disconnect fuel pump fuse to avoid fuel injection during mea- surement.
4. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
5. Remove ignition coil and spark plug from each cylinder. Refer to EM-42, "
IGNITION COIL" and EM-43,
"SPARK PLUG (PLATINUM-TIPPED TYPE)" .
6. Connect engine tachometer (not required in use of CONSULT-II).
7. Install compression gauge with an adapter (commercial service tool) onto spark plug hole.

Use the adapter whose picking up end inserted to spark plug
hole is smaller than 20 mm (0.79 in) in diameter. Otherwise, it
may be caught by cylinder head during removal.
8. Turn ignition switch to “START” for cranking. When the gauge pointer stabilizes, read the compression pressure and the engine rpm. Perform these steps to check each cylinder.
Compression pressure:
Unit: kPa (kg/cm2 , psi) /rpm
CAUTION:
Always use a fully changed battery to obtain the specified engine speed.

If the engine speed is out of the specified range, check battery liquid for proper gravity. Check the
engine speed again with normal battery gravity.
SBIA0466E
PBIC0900E
SBIA0533E
Standard Minimum Deference limit between cylinders
1,275 (13.0, 185) / 300 981 (10.0, 142) / 300 98 (1.0, 14) / 300

EM-114
[VQ35DE]
ENGINE ASSEMBLY
Revision: 2006 July 2007 FX35/FX45
REMOVAL
Outline
At first, remove the engine and the transmission assembly with front suspension member downward. Then
separate the engine from transmission.
Preparation
1. Release fuel pressure. Refer to EC-85, "FUEL PRESSURE RELEASE" .
2. Drain engine coolant from radiator. Refer to CO-11, "
Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
3. Disconnect both battery terminals. Refer to SC-5, "
BATTERY" .
4. Remove the following parts:

Engine cover; Refer to EM-19, "INTAKE MANIFOLD COLLECTOR" .

Front road wheel and tires

Front and rear engine undercover

Front cross bar; Refer to FSU-17, "FRONT SUSPENSION MEMBER" .

Cowl top cover (right); Refer to EI-23, "COWL TOP" .

Air duct and air cleaner case assembly; EM-17, "AIR CLEANER AND AIR DUCT" .
5. Discharge refrigerant from A/C circuit. Refer to ATC-137, "
REFRIGERANT LINES" .
6. Remove radiator hoses (upper and lower). Refer to CO-14, "
RADIATOR" .
Engine Room
1. Disconnect heater hose from vehicle-side, and fit a plug onto hose end to prevent engine coolant leak.
2. Disconnect grounding cable (between vehicle to left bank cylinder head).
3. Disconnect battery positive cable harness at vehicle side and temporarily fasten it on engine.
4. Disconnect A/C piping from A/C compressor, and temporarily fasten it on vehicle with a rope. Refer to ATC-137, "
REFRIGERANT LINES" .
5. Disconnect engine room harness connectors shown in the fig- ure.
6. Disconnect two body ground cables.
7. Disconnect brake booster vacuum hose.
8. Disconnect fuel feed hose (with damper) and EVAP hose. Refer to EM-45, "
FUEL INJECTOR AND FUEL
TUBE"
CAUTION:
Fit plugs onto disconnected hoses to prevent fuel leak.
9. Remove reservoir tank of power steering oil pump and piping from vehicle, and temporarily secure them on engine. Refer to PS-30, "
POWER STEERING OIL PUMP" .
CAUTION:
When temporarily securing, keep the reservoir tank upright to avoid a fluid leak.
Passenger Room Side
Follow procedure below to disconnect engine room harness connectors at passenger room side, and tempo-
rarily secure them on engine.
SBIA0472E

ENGINE ASSEMBLY EM-119
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Revision: 2006 July 2007 FX35/FX45
REMOVAL
Outline
At first, remove the engine, the transmission assembly, the transfer assembly and the front final drive assem-
bly with front suspension member downward. Then separate the engine, the transmission assembly, the trans-
fer and the front final drive assembly.
Preparation
1. Release fuel pressure. Refer to EC-85, "FUEL PRESSURE RELEASE" .
2. Drain engine coolant from radiator. Refer to CO-11, "
Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
3. Disconnect both battery terminals. Refer to SC-5, "
BATTERY" .
4. Remove the following parts:

Engine cover; Refer to EM-19, "INTAKE MANIFOLD COLLECTOR" .

Front road wheel and tires

Front and rear engine undercover

Front cross bar; Refer to FSU-17, "FRONT SUSPENSION MEMBER" .

Cowl top cover (right); Refer to EI-23, "COWL TOP" .

Air duct and air cleaner case assembly; EM-17, "AIR CLEANER AND AIR DUCT" .
5. Discharge refrigerant from A/C circuit. Refer to ATC-137, "
REFRIGERANT LINES" .
6. Remove radiator hoses (upper and lower). Refer to CO-14, "
RADIATOR" .
Engine Room
1. Disconnect heater hose from vehicle-side, and fit a plug onto hose end to prevent engine coolant leak.
2. Disconnect grounding cable (between vehicle to left bank cylinder head).
3. Disconnect battery positive cable harness at vehicle side and temporarily fasten it on engine.
4. Disconnect A/C piping from A/C compressor, and temporarily fasten it on vehicle with a rope. Refer to ATC-137, "
REFRIGERANT LINES" .
5. Disconnect engine room harness connectors shown in the fig- ure.
6. Disconnect two body ground cables.
7. Disconnect brake booster vacuum hose.
8. Disconnect fuel feed hose (with damper) and EVAP hose. Refer to EM-45, "
FUEL INJECTOR AND FUEL
TUBE"
CAUTION:
Fit plugs onto disconnected hoses to prevent fuel leak.
9. Remove reservoir tank of power steering oil pump and piping from vehicle, and temporarily secure them on engine. Refer to PS-30, "
POWER STEERING OIL PUMP" .
CAUTION:
When temporarily securing, keep the reservoir tank upright to avoid a fluid leak.
Passenger Room Side
Follow procedure below to disconnect engine room harness connectors at passenger room side, and tempo-
rarily secure them on engine.
SBIA0472E

EM-164
[VK45DE]
PRECAUTIONS
Revision: 2006 July 2007 FX35/FX45
[VK45DE]PRECAUTIONSPFP:00001
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectNBS006ST
NOTE:

This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).

Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″ LOCK ″ position.

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
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.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
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 rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
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.
Precautions for Drain Engine Coolant and Engine OilNBS003HB
Drain engine coolant and engine oil when engine is cooled.
Precautions for Disconnecting Fuel PipingNBS003HC

Before starting work, make sure no fire or spark producing items are in the work area.

Release fuel pressure before disconnecting and disassembly.

After disconnecting pipes, plug openings to stop fuel leakage.
Precautions for Removal and DisassemblyNBS003HD

When instructed to use SST, use specified tools. Always be careful to work safely, avoid forceful or unin-
structed operations.

Exercise maximum care to avoid damage to mating or sliding surfaces.

Cover openings of engine system with tape or the equivalent, if necessary, to seal out foreign materials.

Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly.

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 ReplacementNBS003HE
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precautions for Assembly and InstallationNBS003HF

Use torque wrench to tighten bolts or nuts to specification.

ENGINE ROOM COVER EM-173
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Revision: 2006 July 2007 FX35/FX45
ENGINE ROOM COVERPFP:14049
ComponentsNBS003HM
Removal and InstallationNBS003HN
REMOVAL
CAUTION:
Do not damage or scratch cover when installing or removing.

Major parts and inspection points under each cover are as follows; (numbered as in the figure)
INSTALLATION
Install in the reverse order of removal.
1. Mount nut 2. Battery cover 3. Air duct (inlet)
4. Clip 5. Engine cover
PBIC4550E
1 : Upper side of engine assembly and power steering reservoir tank
2 : Relay and battery
3 : Engine assembly front side, drive belts and cooling fan

FUEL INJECTOR AND FUEL TUBE EM-195
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Revision: 2006 July 2007 FX35/FX45
3. Disconnect fuel feed hose on engine side as follows: (Perform
same procedure for the side of centralized under-floor piping as
well.)
a. Remove quick connector cap from quick connector connection.
b. Disconnect quick connector from fuel feed damper as follows: CAUTION:
Disconnect quick connector by using quick connector release [SST: J-45488], not by picking out
retainer tabs (centralized under-floor piping side).
i. With the sleeve side of quick connector release facing to quick connector, install quick connector release onto fuel tube.
ii. Insert quick connector release into quick connector until sleeve contacts and goes no further. Hold quick connector release on
that position.
CAUTION:
Inserting quick connector release hard will not disconnect
quick connector. Hold quick connector release where it
contacts and goes no further.
iii. Draw and pull out quick connector straight from fuel feed damper.
CAUTION:

Pull quick connector holding “A” position as shown in
the figure.

Do not pull with lateral force applied. O-ring inside quick connector may be damaged.

Prepare container and cloth beforehand as fuel will leak out.

Avoid fire and sparks.

Keep parts away from heat source. Especially, be careful when welding is performed around
them.

Do not expose parts to battery electrolyte or other acids.

Do not bend or twist connection between quick connector and fuel feed hose during installa-
tion/removal.
PBIC4552E
SBIA0354E
KBIA0702E

ROCKER COVER EM-201
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Revision: 2006 July 2007 FX35/FX45
7. Remove grommets from right and left cowl top panel.

Remove right side grommet as follows:
–Remove battery. Refer to SC-5, "BATTERY" .
–Remove battery tray.
–Remove grommet.
8. Loosen mounting bolts in reverse order as shown in the figure. CAUTION:
Do not hold oil filler neck (right bank) not to damage it.
NOTE:
Loosen No. 10 bolt of the right bank and No. 10 and 12 bolts of
the left bank from cowl top panel hole with using tool.
9. Remove rocker cover gaskets from rocker covers.
10. Use scraper to remove all traces of liquid gasket from cylinder head and camshaft bracket (No. 1 and 6). CAUTION:
Do not scratch or damage the mating surface when cleaning off oil liquid gasket.
PBIC2339E
PBIC0027E

EM-232
[VK45DE]
CYLINDER HEAD
Revision: 2006 July 2007 FX35/FX45
CYLINDER HEADPFP:11041
On-Vehicle ServiceNBS003IJ
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-747, "
FUEL PRESSURE RELEASE" .
a. Remove fuel pump fuse to avoid fuel injection during measure- ment.
3. Remove engine cover with power tool. Refer to EM-173, "
ENGINE ROOM COVER" .
4. Remove ignition coil and spark plug from each cylinder. Refer to EM-191, "
IGNITION COIL" and EM-192,
"SPARK PLUG (PLATINUM-TIPPED TYPE)" .
5. Connect engine tachometer (not required in use of CONSULT-II).
6. Install compression gauge with adapter (SST or commercial ser- vice tool) onto spark plug hole.

Use compression gauge adapter (SST) which is required on
No. 7 and 8 cylinders.

Use compression gauge adapter (if no SST is used) whose
picking up end inserted to spark plug hole is smaller than 20
mm (0.79 in) in diameter. Otherwise, it may be caught by cyl-
inder head during removal.
7. With accelerator pedal fully depressed, turn ignition switch to “START” for cranking. When the gauge pointer stabilizes, read the compression pressure and engine rpm. Perform these steps to check each cyl-
inder.
Compression pressure:
Unit: kPa (kg/cm2 , psi) /rpm
CAUTION:
Always use a fully changed battery to obtain the specified engine speed.
PBIB1482E
PBIC1554E
SBIA0533E
Standard Minimum Deferential limit between cylinders
1,320 (13.5, 191) / 300 1,130 (11.5, 164) / 300 98 (1.0, 14) / 300

CYLINDER HEAD EM-233
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Revision: 2006 July 2007 FX35/FX45

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-749, "
TROUBLE DIAGNOSIS" .
ComponentsNBS003IK
Removal and InstallationNBS003IL
REMOVAL
1. Remove engine assembly from vehicle. Refer to EM-243, "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