2007 INFINITI FX35 lock

EM-148
[VQ35DE]
CYLINDER BLOCK
Revision: 2006 July 2007 FX35/FX45

If the calculated value exceeds the limit, select proper connecting rod bearing according to connecting rod
big end diameter and crankshaft pin journal diameter to obtain the specified bearing oil clearance. Refer
to EM-137, "
HOW TO SELECT CONNECTING ROD BEARING" .
Method of Using Plastigage

Remove oil and dust on crankshaft pin journal and the surfaces of each bearing completely.

Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding
oil holes.

Install connecting rod bearings to connecting rod and connecting rod bearing cap, and tighten connecting
rod bolts to the specified torque. Refer to EM-129, "
ASSEMBLY" for the tightening procedure.
CAUTION:
Do not rotate crankshaft.

Remove connecting rod bearing cap and bearings, and using
the scale on the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING OIL CLEARANCE
Method by Calculation

Install main bearings to cylinder block and main bearing caps,
and tighten main bearing cap bolts with main bearing beam to
the specified torque. Refer to EM-129, "
ASSEMBLY" for the
tightening procedure.

Measure the inner diameter of main bearing with a bore gauge.
(Oil clearance) = (Main bearing inner diameter) – (Crankshaft main
journal diameter)

If the calculated value exceeds the limit, select proper main bearing according to main bearing inner diam-
eter and crankshaft main journal diameter to obtain the specified bearing oil clearance. Refer to EM-138,
"HOW TO SELECT MAIN BEARING" .
Method of Using Plastigage

Remove engine oil and dust on crankshaft journal and the surfaces of each bearing completely.

Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding
oil holes.

Install main bearing to cylinder block and main bearing cap, and tighten main bearing bolts with main
bearing beam to the specified torque. Refer to EM-129, "
ASSEMBLY" for the tightening procedure.
CAUTION:
Never rotate crankshaft. Standard : 0.034 - 0.059 mm (0.0013 - 0.0023 in)
(actual clearance)
Limit : 0.070 mm (0.0028 in)
PBIC1149E
Standard : 0.035 - 0.045 mm (0.0014 - 0.0018 in) (actual clearance)
Limit : 0.065 mm (0.0026 in)
PBIC1644E

CYLINDER BLOCK EM-149
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 July 2007 FX35/FX45

Remove main bearing caps and bearings, and using the scale
on the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING CRUSH HEIGHT

When main bearing cap is removed after being tightened to the
specified torque with main bearings installed, the tip end of bear-
ing must protrude. Refer to EM-129, "
ASSEMBLY" for the tight-
ening procedure.

If the standard is not met, replace main bearings.
CONNECTING ROD BEARING CRUSH HEIGHT

When connecting rod bearing cap is removed after being tight-
ened to the specified torque with connecting rod bearings
installed, the tip end of bearing must protrude. Refer to EM-129,
"ASSEMBLY" for the tightening procedure.

If the standard is not met, replace connecting rod bearings.
MAIN BEARING CAP BOLT OUTER DIAMETER

Measure the outer diameters (“d1 ”, “d2 ”) at two positions as
shown in the figure.

If reduction appears in “A” range, regard it as “d2 ”.

If it exceeds the limit (large difference in dimensions), replace
main bearing cap bolt with new one.
PBIC1149E
Standard : There must be crush height.
SEM502G
Standard : There must be crush height.
PBIC1646E
Limit (“d1 ” – “d2 ”) : 0.11 mm (0.0043 in)
PBIC0911E

EM-150
[VQ35DE]
CYLINDER BLOCK
Revision: 2006 July 2007 FX35/FX45
CONNECTING ROD BOLT OUTER DIAMETER

Measure the outer diameter “d” at position shown in the figure.

If the reduction appears in a position other than “d”, regard it as
“d”.

When “d” exceeds the limit (when it becomes thinner), replace
connecting rod bolt with new one.
DRIVE PLATE

Check drive plate and signal plate for deformation or damage.
CAUTION:

Do not disassemble drive plate.

Do not place drive plate with signal plate facing down.

When handling signal plate, take care not to damage or
scratch it.

Handle signal plate in a manner that prevents it from
becoming magnetized.

If anything is found, replace drive plate.
OIL JET

Check nozzle for deformation and damage.

Blow compressed air from nozzle, and check for clogs.

If it is not satisfied, clean or replace oil jet.
OIL JET RELIEF VALVE

Using a clean plastic stick, press check valve in oil jet relief
valve. Make sure that valve moves smoothly with proper reac-
tion force.

If it is not satisfied, replace oil jet relief valve. Standard : 7.90 - 8.00 mm (0.3110 - 0.3150 in)
Limit : 7.75 mm (0.3051 in)
PBIC0912E
SEM760G
EMU0468D

EM-158
[VQ35DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2006 July 2007 FX35/FX45
CYLINDER BLOCK
Unit: mm (in)
Surface flatness Standard Less than 0.03 (0.0012)
Limit 0.1 (0.004)
Main bearing housing inner diameter Standard 63.993 - 64.017 (2.5194 - 2.5203)
Cylinder bore Inner diameter Standard Grade No. 1 95.500 - 95.510 (3.7598 - 3.7602)
Grade No. 2 95.510 - 95.520 (3.7602 - 3.7606)
Grade No. 3 95.520 - 95.530 (3.7606 - 3.7610)
Wear limit 0.2 (0.008)
Out-of-round (Difference between “X” and “Y”) Limit 0.015 (0.0006)
Taper (Difference between “A” and “C”) 0.01 (0.0004)
Main journal inner diameter grade (Without bearing) Grade No. A
Grade No. B
Grade No. C
Grade No. D
Grade No. E
Grade No. F
Grade No. G
Grade No. H
Grade No. J
Grade No. K
Grade No. L
Grade No. M
Grade No. N
Grade No. P
Grade No. R
Grade No. S
Grade No. T
Grade No. U
Grade No. V
Grade No. W
Grade No. X
Grade No. Y
Grade No. 4
Grade No. 7 63.993 - 63.994 (2.5194 - 2.5194)
63.994 - 63.995 (2.5194 - 2.5195)
63.995 - 63.996 (2.5195 - 2.5195)
63.996 - 63.997 (2.5195 - 2.5196)
63.997 - 63.998 (2.5196 - 2.5196)
63.998 - 63.999 (2.5196 - 2.5196)
63.999 - 64.000 (2.5196 - 2.5197)
64.000 - 64.001 (2.5197 - 2.5197)
64.001 - 64.002 (2.5197 - 2.5198)
64.002 - 64.003 (2.5198 - 2.5198)
64.003 - 64.004 (2.5198 - 2.5198)
64.004 - 64.005 (2.5198 - 2.5199)
64.005 - 64.006 (2.5199 - 2.5199)
64.006 - 64.007 (2.5199 - 2.5200)
64.007 - 64.008 (2.5200 - 2.5200)
64.008 - 64.009 (2.5200 - 2.5200)
64.009 - 64.010 (2.5200 - 2.5201) 64.010 - 64.011 (2.5201 - 2.5201)
64.011 - 64.012 (2.5201 - 2.5202)
64.012 - 64.013 (2.5202 - 2.5202)
64.013 - 64.014 (2.5202 - 2.5202)
64.014 - 64.015 (2.5202 - 2.5203)
64.015 - 64.016 (2.5203 - 2.5203)
64.016 - 64.017 (2.5203 - 2.5203)
Difference in inner diameter between cylinders Standard Less than 0.03 (0.0012)
PBIC0923E

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.

PRECAUTIONS EM-165
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 July 2007 FX35/FX45

When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the
ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is speci-
fied, do exactly as specified.

Replace with new gasket, packing, oil seal or O-ring.

Thoroughly wash, clean, and air-blow each part. Carefully check engine oil or engine coolant passages for
any restriction and blockage.

Guide pins are used for several parts alignment. When replacing and reassembling parts with guide pins,
make sure that guide pins are installed in the original portion.

Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust.
Before assembly, oil sliding surfaces well.

Release air within route when refilling after draining engine coolant.

After repairing, start engine and increase engine speed to check engine coolant, fuel, engine oil, and
exhaust gases for leakage.
Parts Requiring Angle TighteningNBS003HG

Use angle wrench [SST: KV10112100 (BT8653-A)] for the final tightening of the following engine parts:
–Cylinder head bolts
–Main bearing cap bolts
–Connecting rod cap nuts
–Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angle
tightening)

Do not use a torque value for final tightening.

The torque value for these parts are for a preliminary step.

Ensure thread and seat surfaces are clean and coated with engine oil.
Precautions for Liquid GasketNBS003HH
REMOVAL OF LIQUID GASKET SEALING

After removing mounting nuts and bolts, separate the mating
surface using seal cutter (SST) and remove old liquid gasket
sealing.
CAUTION:
Be careful not to damage the mating surfaces.

Tap seal cutter to insert it, and then slide it by tapping on the
side as shown in the figure.

In areas where seal cutter (SST) is difficult to use, use plastic
hammer to lightly tap the parts, to remove it.
CAUTION:
If for some unavoidable reason tool such as screwdriver is
used, be careful not to damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using scraper, remove old liquid gasket adhering to the liquid gasket application surface and the mating surface.

Remove liquid gasket completely from the groove of the liquid
gasket application surface, mounting bolts, and bolt holes.
2. Wipe the liquid gasket application surface and the mating sur- face with white gasoline (lighting and heating use) to remove
adhering moisture, grease and foreign materials.
PBIC0002E
PBIC0003E

EM-172
[VK45DE]
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"

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