2007 INFINITI FX35 Service Manual

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Page 2801 of 4366

INFINITI FX35 2007 Service Manual PREPARATION EM-9
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Revision: 2006 July 2007 FX35/FX45KV10115600
(J-38958)
Valve oil seal drift Installing valve oil seal
Use side A.
a: 20 (0.79) di

Page 2802 of 4366

INFINITI FX35 2007 Service Manual EM-10
[VQ35DE]
PREPARATION
Revision: 2006 July 2007 FX35/FX45
Commercial Service ToolsNBS003FW
KV10114400
(J38365)
Heated oxygen sensor wrench Loosening or tightening air fuel ratio sensor 1
a: 22

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INFINITI FX35 2007 Service Manual PREPARATION EM-11
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Revision: 2006 July 2007 FX35/FX45
(—)
TORX socket Removing and installing flywheel
Size: T55
(—)
Manual lift table caddy R

Page 2804 of 4366

INFINITI FX35 2007 Service Manual EM-12
[VQ35DE]
PREPARATION
Revision: 2006 July 2007 FX35/FX45
(—)
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.

Page 2805 of 4366

INFINITI FX35 2007 Service Manual NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING EM-13
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Revision: 2006 July 2007 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:0

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INFINITI FX35 2007 Service Manual EM-14
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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.NBS003FY
1. Locate the area where n

EM-14
[VQ35DE]
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.NBS003FY
1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of the 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 CA—AB— Tappet
noise Valve clearance
EM-93
Rattle C A — A B C Camshaft
bearing
noise Camshaft runout
Camshaft journal oil
clearance EM-85EM-86
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-141
EM-143
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-145EM-142
EM-142
EM-143
Knock A B C B B B
Connect-
ing rod
bearing
noise Connecting rod bush-
ing oil clearance
Connecting rod bear-
ing oil clearance EM-143EM-147
Knock A B — A B C
Main
bearing
noise Main bearing oil clear-
ance
Crankshaft runout EM-148
EM-147
Front of
engine
Timing
chain
case Tapping or
ticking AA—BBB Timing
chain and
timing
chain ten-
sioner
noise Timing chain cracks
and wear
Timing chain tensioner
operation EM-72
EM-64
Front of
engine Squeak-
ing or fizz-
ing AB—B—C Drive belts
(Sticking
or slip-
ping) Drive belts deflection
EM-15
CreakingABABAB Drive belts
(Slipping) Idler pulley bearing
operation
Squall
Creak AB—BAB Water
pump
noise Water pump operation CO-22,
"WATER
PUMP"

Page 2807 of 4366

INFINITI FX35 2007 Service Manual DRIVE BELTS EM-15
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Revision: 2006 July 2007 FX35/FX45
DRIVE BELTSPFP:02117
Checking Drive BeltsNBS003FZ
WARNING:
Be sure to perform when engine is stop

DRIVE BELTS EM-15
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Revision: 2006 July 2007 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

Page 2808 of 4366

INFINITI FX35 2007 Service Manual EM-16
[VQ35DE]
DRIVE BELTS
Revision: 2006 July 2007 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 ad

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