INFINITI FX35 2007 Service Manual

PREPARATION EM-169
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Revision: 2006 July 2007 FX35/FX45
Commercial Service ToolsNBS003HJ
—
(J-45476)
Ring gear stopper Removing and installing crankshaft pulley
—
(J-45488)
Quick connector release Removing fuel tube quick connectors in
engine room
Tool number
(Kent-Moore No.)
Tool name Description
PBIC1655E
PBIC0198E
(Kent-Moore No.)
Tool name Description
(—)
Power tool Loosening nuts and bolts
(—)
Spark plug wrench Removing and installing spark plug
(—)
Manual lift table caddy Removing and installing engine
(J–24239-01)
Cylinder head bolt wrench Loosening and tightening cylinder head bolt,
and use with angle wrench [SST:
KV10112100 (BT–8653-A)]
a: 13 (0.51) dia.
b: 12 (0.47)
c: 10 (0.39)
Unit: mm (in)
PBIC0190E
S-NT047
ZZA1210D
NT583

EM-170
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PREPARATION
Revision: 2006 July 2007 FX35/FX45
(—)
Valve seat cutter set Finishing valve seat dimensions
(—)
Piston ring expander Removing and installing piston ring
(—)
Valve guide drift Removing and installing valve guide
Intake and Exhaust:
a: 9.5 mm (0.374 in) dia.
b: 5.5 mm (0.217 in) dia.
(—)
Valve guide reamer (1): Reaming valve guide inner hole
(2): Reaming hole for oversize valve guide
Intake and Exhaust:
d
1 : 6.0 mm (0.236 in) dia.
d
2 : 10.2 mm (0.402 in) dia.
(J-43897-18)
(J-43897-12)
Oxygen sensor thread cleaner Reconditioning the exhaust system threads
before installing a new heated oxygen
sensor (Use with anti-seize lubricant shown
below.)
a: J-43897-18 (18 mm dia.) for zirconia
heated oxygen sensor
b: J-43897-12 (12 mm dia.) for titania
heated oxygen sensor
(—)
Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL
specification MIL-A-907) Lubricating oxygen sensor thread cleaning
tool when reconditioning exhaust system
threads
(Kent-Moore No.)
Tool name Description
S-NT048
S-NT030
S-NT015
S-NT016
AEM488
AEM489

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING EM-171
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Revision: 2006 July 2007 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting — Engine NoiseNBS003HK
PBIC2865E

EM-172
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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2006 July 2007 FX35/FX45
Use the Chart Below to Help You Find the Cause of the Symptom.NBS003HL
1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of engine.
4. Check specified noise source.
If necessary, repair or replace these parts.
A: Closely related B: Related C: Sometimes related —: Not related Location
of noise Type of
noise Operating condition of engine
Source of noise Check item Refer-
ence page
Before
warm- up After
warm- up When
start- ing When
idling When
racing While
driving
Top of
engine
Rocker
cover
Cylinder
head Ticking or
clicking C A — A B — Tappet noise Valve clearance
EM-222
Rattle C A — A B C Camshaft
bearing noise Camshaft journal oil
clearance
Camshaft runout EM-217EM-216
Crank-
shaft pul-
ley
Cylinder
block
(Side of
engine)
Oil pan Slap or
knock —A—B B— Piston pin
noise Piston to piston pin oil
clearance
Connecting rod bush-
ing oil clearance EM-265
EM-267
Slap or
rap A——B B A Piston slap
noise Piston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsion EM-269EM-266
EM-266
EM-267
Knock A B C B B B
Connecting
rod bearing
noise Connecting rod bush-
ing oil clearance
Connecting rod bear-
ing oil clearance EM-267EM-272
Knock A B — A B C
Main bearing
noise Main bearing oil clear-
ance
Crankshaft runout EM-273EM-271
Front of
engine
front cover Tapping or
ticking AA—BBB Timing chain
and chain
tensioner
noise Timing chain cracks
and wear
Timing chain tensioner
operation EM-208
EM-203
Front of
engine Squeak-
ing or fizz-
ing AB—B—C Drive belts
(Sticking or
slipping) Drive belts deflection
EM-174CreakingA BAB A B Drive belts
(Slipping) Idler pulley bearing
operation
Squall
Creak AB—BAB Water pump
noise Water pump operation CO-51,
"WATER
PUMP"

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

EM-174
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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
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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
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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

AIR CLEANER AND AIR DUCT EM-177
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Revision: 2006 July 2007 FX35/FX45
AIR CLEANER AND AIR DUCTPFP:16500
ComponentsNBS003HU

Refer to GI-11, "Components" for symbol marks in the figure.
Removal and InstallationNBS003HV
REMOVAL
1. Remove engine cover with power tool. Refer to EM-173, "ENGINE ROOM COVER" .
2. Disconnect harness connector from mass air flow sensor.
3. Disconnect vacuum hose and PCV hose.
4. Remove air duct (inlet), power duct, air cleaner case and mass air flow sensor assembly, air duct and res- onator assembly disconnecting their joints.

Add marks as necessary for easier installation.
5. Remove mass air flow sensor from air cleaner case. CAUTION:
Handle mass air flow sensor with following cares.

Do not shock it.

Do not disassemble it.
1. Power duct 2. Blind plug 3. Clip
4. Air duct (inlet) 5. Air cleaner case 6. Mounting rubber
7. Resonator 8. Air cleaner filter 9. Air cleaner case
10. O-ring 11. Mass air flow sensor 12. Air duct and resonator assembly
13. Vacuum hose 14. PCV hose
A. To VIAS control solenoid valve B. To rocker cover (left bank)
PBIC4551E

EM-178
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AIR CLEANER AND AIR DUCT
Revision: 2006 July 2007 FX35/FX45

Do not touch its sensor.
INSPECTION AFTER REMOVAL
Inspect air duct and resonator assembly for crack or tear.

If anything found, replace air duct and resonator assembly.
INSTALLATION
Note the following, and install in the reverse order of removal.

Align marks. Attach each joint. Screw clamps firmly.
Changing Air Cleaner FilterNBS003HW
REMOVAL
1. Remove air duct (inlet), power duct, air cleaner case and mass air flow sensor assembly.
2. Remove air cleaner filter from air cleaner case.
INSTALLATION
Install in the reverse order of removal.