2007 INFINITI FX35 steering

EM-122
[VQ35DE]
ENGINE ASSEMBLY
Revision: 2006 July 2007 FX35/FX45

Do not allow engine mounting insulator to be damage and careful no engine oil gets on it.

For a location with a positioning pin, insert it securely into hole of mating part.

For a part with a specified installation orientation, refer to component figure in EM-118, "Components
(AWD Models)" .

When installing engine mounting bracket (RH and LH) on cylin-
der block, tighten two upper bolts (shown as “A” in the figure)
first. Then tighten two lower bolts (shown as “B” in the figure).

Install engine mounting bracket (RH) (lower) as follows:
–Temporarily tighten mounting bolts (shown as “C”, “D” and “E” in
the figure).
–Tighten mounting bolts to the specified torque with following
mounting surfaces touched.
 Engine mounting bracket (RH) to engine mounting bracket (RH) (lower) (shown as “C” and “D” in figure).
 Front final drive to engine mounting bracket (RH) (lower) (shown as “E” in figure).

Make sure all engine mounting insulators are seated properly,
then tighten mounting nuts.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The following are procedures for checking fluids leak, lubricates leak and exhaust gases leak.

Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-12, "
RECOMMENDED FLUIDS AND LUBRICANTS" .

Use procedure below to check for fuel leakage.
–Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel
leakage at connection points.
–Start engine. With engine speed increased, check again for fuel leakage at connection points.

Run engine to check for unusual noise and vibration.

Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gases, or any oil/fluids
including engine oil and engine coolant.

Bleed air from lines and hoses of applicable lines, such as in cooling system.

After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
* Transmission/transaxle/CVT fluid. power steering fluid, brake fluid, etc.
PBIC3042E
Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —

EM-152
[VQ35DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2006 July 2007 FX35/FX45
DRIVE BELT
*: If belt tension gauge cannot be installed at check points shown, check drive belt tension at different location on the belt.
INTAKE MANIFOLD COLLECTOR, INTAKE MANIFOLD AND EXHAUST MANIFOLD
Unit: mm (in)
SPARK PLUG
Deflection adjustment Unit: mm (in) Tension adjustment* Unit: N (kg, lb)
Used belt New belt Used belt
New belt
Limit After adjustment Limit After adjustment
Alternator and
power steering
oil pump belt 7 (0.28)
4 - 5
(0.16 - 0.20) 3.5 - 4.5
(0.138 - 0.177) 294 (30, 66) 730 - 818
(74.5 - 83.4, 164 - 184) 838 - 926
(85.5 - 94.5, 188 - 208)
A/C compressor
belt 12 (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
(47.9 - 57.0,
106 - 126)
Applied pushing
force 98 N (10 kg, 22 lb) —
KBIA1731J
Items Limit
Surface distortion Intake manifold collector (upper) 0.1 (0.004)
Intake manifold collector (lower) 0.1 (0.004)
Intake manifold 0.1 (0.004)
Exhaust manifold 0.3 (0.012)
Make NGK
Standard type PLFR5A-11
Hot type PLFR4A-11
Cold type PLFR6A-11
Gap (Nominal) 1.1 mm (0.043 in)

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
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
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

EM-174
[VK45DE]
DRIVE BELTS
Revision: 2006 July 2007 FX35/FX45
DRIVE BELTSPFP:02117
ComponentsNBS003HO
Checking Drive BeltsNBS003HP
WARNING:
Be sure to perform when engine is stopped.

Remove air duct (inlet) when inspecting drive belt for alternator, water pump and A/C compressor.

Remove front engine undercover with power tool when inspecting power steering oil pump belt.

Make sure that indicator (single line notch) of each auto tensioner is within the allowable working range
(between three line notches).
NOTE:

Check auto tensioner indication when engine is cold.

When new drive belt is installed, the range should be “A”.

The indicator notch is located on the moving side of auto tensioner for alternator, water pump and A/C
compressor belt, while it is found on the fixed side for power steering oil pump belt.

Visually check entire belt for wear, damage or cracks.

If the indicator is out of allowable working range or belt is damaged, replace belt.
Tension AdjustmentNBS003HQ
Belt tensioning is not necessary, as it is automatically adjusted by auto tensioner.
Removal and InstallationNBS003HR
REMOVAL
Alternator, Water Pump and A/C Compressor Belt
1. Remove air duct (inlet). Refer to EM-177, "AIR CLEANER AND AIR DUCT" .
2. With box wrench, and while securely holding the hexagonal part in pulley center of auto tensioner, move wrench handle in the
direction of arrow (loosening direction of tensioner).
CAUTION:

Avoid placing hand in a location where pinching may
occur if the holding tool accidentally comes off.

Do not loosen the hexagonal part in center of drive belt
auto–tensioner pulley (Do not turn it clockwise). If turned
clockwise, the complete drive belt auto–tensioner must
be replaced as a unit, including the pulley.
PBIC2331E
PBIC2976E

DRIVE BELTS EM-175
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 July 2007 FX35/FX45
3. Under the above condition, insert a metallic bar of approximately 6 mm (0.24 in) in diameter (hexagonal
bar wrench shown as example in the figure) through the holding boss to lock auto tensioner pulley arm.

Leave auto tensioner pulley arm locked until belt is installed again.
4. Remove alternator, water pump and A/C compressor belt.
Power Steering Oil Pump Belt
1. Remove air duct (inlet). Refer to EM-177, "AIR CLEANER AND AIR DUCT" .
2. Remove front engine undercover with power tool.
3. Remove alternator, water pump and A/C compressor belt. Refer to EM-174, "
Alternator, Water Pump and
A/C Compressor Belt" .
4. While securely holding the hexagonal protrusion part of auto tensioner pulley with box wrench, move wrench handle in the
direction of arrow (loosening direction of tensioner).
CAUTION:
Avoid placing hand in a location where pinching may occur
if holding tool accidentally comes off.
5. Under the above condition, insert a metallic bar of approximately 6 mm (0.24 in) in diameter (hexagonal bar wrench shown as
example in the figure) through the holding boss to lock auto ten-
sioner pulley arm.

Leave auto tensioner pulley arm locked until belt is installed
again.
6. Remove power steering oil pump belt.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:

Make sure belt is securely installed around all pulleys.

Make sure belt is correctly engaged with the pulley groove.

Check for engine oil and engine coolant are not adhered belt and pulley groove.

Check that belt tension is within the allowable working range, using indicator notch on auto ten-
sioner. Refer to EM-174, "
Checking Drive Belts" .
PBIC1543E

EM-176
[VK45DE]
DRIVE BELTS
Revision: 2006 July 2007 FX35/FX45
ComponentsNBS003HS
CAUTION:
The complete drive belt auto–tensioner must be replaced as a unit, including the pulley.
Drive Belt Auto Tensioner and Idler PulleyNBS003HT
REMOVAL
1. Remove air duct (inlet). Refer to EM-177, "AIR CLEANER AND AIR DUCT" .
2. Remove front engine undercover with power tool.
3. Remove drive belts. Refer to EM-174, "
Removal and Installation" .

Keep auto tensioner pulley arm locked after belt is removed.
4. Remove auto tensioner and idler pulley with power tool.

Keep auto tensioner pulley arm locked to install or remove auto tensioner.
CAUTION:
Do not loosen the hexagonal part in center of drive belt auto–tensioner pulley (Do not turn it clock-
wise). If turned clockwise, the complete drive belt auto–tensioner must be replaced as a unit,
including the pulley.
INSTALLATION
Install in the reverse order of removal.
CAUTION:
Do not swap the pulley between new and old drive belt auto–tensioner.
1. Auto tensioner ( Used for alternator,
water pump and A/C compressor) 2. Idler pulley 3. Auto tensioner (Used for power
steering oil pump belt)
PBIC2788E

EM-184
[VK45DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
Revision: 2006 July 2007 FX35/FX45
7. Remove drive belts. Refer to EM-174, "DRIVE BELTS" .
8. Remove air fuel ratio sensor 1 and heated oxygen sensor 2 as follows:
a. Disconnect air fuel ratio sensor 1 and heated oxygen sensor 2 harness connectors.
b. Remove air fuel ratio sensor 1 and heated oxygen sensor 2 on both bank with heated oxygen sensor wrench (SST).
CAUTION:

Be careful not to damage air fuel ratio sensor 1 and
heated oxygen sensor 2.

Discard any air fuel ratio sensor 1 and heated oxygen
sensor 2 which have been dropped onto a hard surface
such as a concrete floor: replace with a new one.
9. Remove exhaust mounting bracket between three way catalysts (right and left bank) and transmission. Refer to EX-3, "
EXHAUST SYSTEM" .
10. Disconnect A/C piping from A/C compressor, then remove A/C compressor with power tool. Refer to AT C -
139, "Components" .
11. Remove alternator and bracket. Refer to SC-24, "
CHARGING SYSTEM" .
12. Remove exhaust front tube with power tool. Refer to EX-3, "
EXHAUST SYSTEM" .
13. Remove steering lower joint at power steering gear assembly side, and release steering lower shaft. Refer to PS-18, "
POWER STEERING GEAR AND LINKAGE" .
14. Remove three way catalysts (right and left bank).
15. Remove exhaust manifold covers. (right and left bank)
PBIC2333E
PBIC2334E