2006 INFINITI FX35 Steering lock

ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) BRC-59
[VDC/TCS/ABS]
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Revision: 2006 December 2006 FX35/FX45
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Be careful of the following when installing ABS actuator and electric unit (control unit).

Tighten the mounting bolts and nuts to the specified torque.

After the work, bleed air from brake piping. Refer to BR-10, "Bleeding Brake System" .

After installing vehicle harness connector in the actuator, make sure connector is securely locked.

When replacing ABS actuator and electric unit (control unit), calibrate steering angle sensor neu-
tral position and decel G sensor. Refer to BRC-6, "
ON-VEHICLE SERVICE" .

EM-3
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Revision: 2006 December 2006 FX35/FX45 ANCE ...............................................................
. 147
MAIN BEARING OIL CLEARANCE ................. . 148
MAIN BEARING CRUSH HEIGHT ................... . 149
CONNECTING ROD BEARING CRUSH
HEIGHT ............................................................ . 149
MAIN BEARING CAP BOLT OUTER DIAMETER . 149
CONNECTING ROD BOLT OUTER DIAMETER . 150
DRIVE PLATE .................................................. . 150
OIL JET ............................................................ . 150
OIL JET RELIEF VALVE .................................. . 150
SERVICE DATA AND SPECIFICATIONS (SDS) ... . 151
Standard and Limit .............................................. . 151
GENERAL SPECIFICATIONS ......................... . 151
DRIVE BELT .................................................... . 152
INTAKE MANIFOLD COLLECTOR, INTAKE
MANIFOLD AND EXHAUST MANIFOLD ........ . 152
SPARK PLUG .................................................. . 152
CAMSHAFT AND CAMSHAFT BEARING ....... . 153
CYLINDER HEAD ............................................ . 155
CYLINDER BLOCK .......................................... . 158
PISTON, PISTON RING AND PISTON PIN ..... . 159
CONNECTING ROD ........................................ . 160
CRANKSHAFT ................................................. . 161
MAIN BEARING ............................................... . 162
CONNECTING ROD BEARING ....................... . 163
VK45DE
PRECAUTIONS ..................................................... . 164
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect ..................................... . 164
OPERATION PROCEDURE ............................ . 164
Precautions for Drain Engine Coolant and Engine
Oil ........................................................................ . 164
Precautions for Disconnecting Fuel Piping ......... . 164
Precautions for Removal and Disassembly ........ . 164
Precautions for Inspection, Repair and Replace-
ment .................................................................... . 164
Precautions for Assembly and Installation .......... . 164
Parts Requiring Angle Tightening ........................ . 165
Precautions for Liquid Gasket ............................. . 165
REMOVAL OF LIQUID GASKET SEALING ..... . 165
LIQUID GASKET APPLICATION PROCEDURE . 165
PREPARATION ...................................................... . 167
Special Service Tools .......................................... . 167
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 ................................................ . 173
DRIVE 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 .................... .189
INSTALLATION ................................................ .189
INSPECTION AFTER INSTALLATION ............. .190
IGNITION COIL ...................................................... .191
Components ........................................................ .191
Removal and Installation ..................................... .191
REMOVAL ........................................................ .191
INSTALLATION ................................................ .191
SPARK PLUG (PLATINUM-TIPPED TYPE) .......... .192
Components ........................................................ .192
Removal and Installation ..................................... .192
REMOVAL ........................................................ .192
INSPECTION AFTER REMOVAL .................... .192
INSTALLATION ................................................ .193
FUEL INJECTOR AND FUEL TUBE ..................... .194
Components ........................................................ .194
Removal and Installation ..................................... .194
REMOVAL ........................................................ .194
INSTALLATION ................................................ .196
INSPECTION AFTER INSTALLATION ............. .198

PRECAUTIONS EM-5
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Revision: 2006 December 2006 FX35/FX45
[VQ35DE]PRECAUTIONSPFP:00001
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectNBS003FN
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-diagnosis 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 OilNBS003FO
Drain engine coolant and engine oil when the engine is cooled.
Precautions for Disconnecting Fuel PipingNBS003FP

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 DisassemblyNBS003FQ

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.

Dowel pins are used for several parts alignment. When replacing and reassembling parts with dowel pins,
make sure that dowel pins are installed in the original position.

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

Mark and arrange disassembly parts in an organized way for easy troubleshooting and re-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 in the step.
Precautions for Inspection, Repair and ReplacementNBS003FR
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.

DRIVE BELTS EM-15
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Revision: 2006 December 2006 FX35/FX45
DRIVE BELTSPFP:02117
Checking Drive BeltsNBS003FZ
WARNING:
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 AdjustmentNBS003G0
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
Items 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) —
Portion
Belt 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

EM-16
[VQ35DE]
DRIVE BELTS
Revision: 2006 December 2006 FX35/FX45
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 InstallationNBS003G1
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 N·m (3.5 kg-m, 26 ft-lb)
SBIA0532E
: 34.8 N·m (3.5 kg-m, 26 ft-lb)

EM-82
[VQ35DE]
TIMING CHAIN
Revision: 2006 December 2006 FX35/FX45
c. Tighten crankshaft pulley bolt.
d. Turn crankshaft pulley bolt 90 degree clockwise (angle tighten- ing).
CAUTION:
Check the tightening angle by using the angle wrench
[SST]. Avoid judgement by visual inspection without SST.

Check tightening angle indicated on the angle wrench indica-
tor plate.
e. Rotate crankshaft pulley in normal direction (clockwise when viewed from front) to confirm it turns smoothly.
19. For the following operations, perform steps in the reverse order of removal.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The following are procedures for checking fluids leak, lubricates 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 GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .

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.
NOTE:
If hydraulic pressure inside chain tensioner drops after removal/installation, slack in guide may generate a
pounding noise during and just after the engine start. However, this does not indicate an unusualness.
Noise will stop after hydraulic pressure rises.

Warm up engine thoroughly to make sure there is no leakage of fuel, 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.
: 44.1 N·m (4.5 kg-m, 33 ft-lb)
PBIC3821E
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

CAMSHAFT EM-93
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Revision: 2006 December 2006 FX35/FX45
Summary of the inspection items:
* Transmission/transaxle/CVT fluid. power steering fluid, brake fluid, etc.
Va l v e C l e a r a n c eNBS003GS
INSPECTION
Perform inspection as follows after removal, installation or replacement of camshaft or valve-related parts, or if
there is unusual engine conditions regarding valve clearance.
In cases of removing/installing or replacing camshaft and valve-
related parts, or of unusual engine conditions due to changes in
valve clearance (found malfunctions during stating, idling or causing
noise), perform inspection as follows:
1. Remove rocker covers (right and left bank). Refer to EM-51, "
ROCKER COVER" .
2. Measure the valve clearance as follows:
a. Set No. 1 cylinder at TDC of its compression stroke.

Rotate crankshaft pulley clockwise to align timing mark
(grooved line without color) with timing indicator.

Make sure that intake and exhaust cam nose on No. 1 cylin-
der (engine front side of right bank) are located as shown in
the figure.

If not, turn crankshaft one revolution (360 degrees) and align
as shown in the figure.
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
SEM713A
KBIA1717J
SEM418G

CYLINDER HEAD EM-105
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Revision: 2006 December 2006 FX35/FX45
e. Turn all cylinder head bolts 90 degrees clockwise (angle tighten- ing).
CAUTION:
Check the tightening angle by using the angle wrench
(SST). Avoid judgment by visual inspection without SST.

Check tightening angle indicated on the angle wrench indica-
tor plate.
f. Turn all cylinder head bolts 90 degrees clockwise again (angle tightening).
4. After installing cylinder head, measure distance between front end faces of cylinder block and cylinder head (left and right
banks).

If measured value is out of the standard, re-install cylinder
head.
5. Install in the reverse order of removal after this step.
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.
PBIC0888E
Standard : 14.1 - 14.9 mm (0.555 - 0.587 in)
EMQ0662D
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 —