coolant INFINITI FX35 2006 Service Manual

EM-126
[VQ35DE]
CYLINDER BLOCK
Revision: 2006 December 2006 FX35/FX45
6. Drain engine coolant by removing water drain plugs from cylin- der block both sides at “B” and “C” and cylinder block front side
at “A” as shown in the figure.
7. Remove drive plate with power tool. Fix crankshaft with a ring gear stopper [SST: KV1011770 (J44716)], and remove mounting bolts.

Loosen mounting bolts in diagonal order.
CAUTION:

Do not disassemble drive plate.

Never 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.
8. Remove the following parts:

Intake manifold collector; Refer to EM-19, "INTAKE MANIFOLD COLLECTOR" .

Intake manifold; Refer to EM-24, "INTAKE MANIFOLD" .

Oil pans (lower and upper); Refer to EM-30, "OIL PAN AND OIL STRAINER" .

Front and rear timing chain case; Refer to EM-64, "TIMING CHAIN" .

Cylinder head; Refer to EM-101, "CYLINDER HEAD" .
9. Remove knock sensor.
CAUTION:
Carefully handle sensor avoiding shocks.
PBIC2610E
SEM760G

CYLINDER BLOCK EM-129
[VQ35DE]
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18. Remove main bearing beam.
19. Remove main bearing caps. CAUTION:
Be careful not to drop main bearing, and to scratch the sur-
face.

Using main bearing cap bolts, remove main bearing cap while
shaking it back-and-forth.
20. Remove crankshaft.
21. Remove main bearings and thrust bearings from cylinder block and main bearing caps. CAUTION:

Be careful not to drop main bearing, and to scratch the surface.

Identify installation positions, and store them without mixing them up.
22. Remove oil jet.
ASSEMBLY
1. Fully air-blow engine coolant and engine oil passages in cylinder block, cylinder bore and crankcase to remove any foreign material.
CAUTION:
Use a goggles to protect your eye.
2. Install each plug to cylinder block as shown in the figure.

Apply sealant to the thread of water drain plugs “A”, “B” and
“C”.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .

Apply sealant to the thread of plugs “D” and “E”.
Use Genuine High Strength Thread Locking Sealant or
equivalent. Refer to GI-48, "
RECOMMENDED CHEMICAL
PRODUCTS AND SEALANTS" .

Apply sealant to the thread of plug “F”.
Use Anaerobic Liquid Gasket or equivalent. Refer to GI-
48, "RECOMMENDED CHEMICAL PRODUCTS AND SEAL-
ANTS" .
NOTE:
For Canada, “F” in the figure is not plug but block heater.
Refer to EM-123, "
Components" .

Replace washers with new one.
PBIC0881E
EMQ0195D
PBIC2610E

EM-144
[VQ35DE]
CYLINDER BLOCK
Revision: 2006 December 2006 FX35/FX45
Piston Pin Outer Diameter
Measure the outer diameter of piston pin with a micrometer.
Connecting Rod Bushing Oil Clearance
(Connecting rod bushing oil clearance) = (Connecting rod bushing inner diameter) – (Piston pin outer diame-
ter)

If the calculated value exceeds the limit, replace connecting rod assembly and/or piston and piston pin
assembly.

If replacing piston and piston pin assembly, refer to EM-136, "HOW TO SELECT PISTON" .

If replacing connecting rod assembly, refer to EM-147, "CON-
NECTING ROD BEARING OIL CLEARANCE" to select the con-
necting rod bearing.
Factory installed parts grading:

Service parts apply only to grade “0”.
Unit: mm (in)
*: After installing in connecting rod
CYLINDER BLOCK DISTORTION

Using a scraper, remove gasket on the cylinder block surface, and also remove engine oil, scale, carbon,
or other contamination.
CAUTION:
Be careful not to allow gasket flakes to enter engine oil or engine coolant passages. Standard : 21.989 - 22.001 mm (0.8657 - 0.8662 in)
PBIC0117E
Standard : 0.005 - 0.017 mm (0.0002 - 0.0007 in)
Limit : 0.030 mm (0.0012 in)
PBIC0809E
Grade 0 1
Connecting rod bushing
inner diameter * 22.000 - 22 .0 06
(0.8661 - 0.8664) 22.006 - 22.012
(0.8664 - 0.8666)
Piston pin hole diameter 21.993 - 21.999
(0.8659 - 0.8661) 21.999 - 22. 005
(0.8661 - 0.8663)
Piston pin outer diameter 21.989 - 21.995
(0.8657- 0.8659) 21.995 - 22.001
(0.8659 - 0.8662)
PBIC0812E

EM-164
[VK45DE]
PRECAUTIONS
Revision: 2006 December 2006 FX35/FX45
[VK45DE]PRECAUTIONSPFP:00001
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectNBS003HA
NOTE:

This Procedure is applied only to models with Intelligent Key system ang 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 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
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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-166
[VK45DE]
PRECAUTIONS
Revision: 2006 December 2006 FX35/FX45
3. Attach liquid gasket tube to tube presser [SST: WS39930000 (—)].
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
4. Apply liquid gasket without breaks to the specified location with the specified dimensions.

If there is a groove for the liquid gasket application, apply liquid gasket to the groove.

As for the bolt holes, normally apply liquid gasket inside the
holes. Occasionally, it should be applied outside the holes.
Make sure to read the text of this manual.

Within five minutes of liquid gasket application, install the mat-
ing component.

If liquid gasket protrudes, wipe it off immediately.

Do not retighten after the installation.

Wait 30 minutes or more after installation before refilling
engine with engine oil and engine coolant.
CAUTION:
If there are specific instructions in this manual, observe
them.
EMA0622D
SEM159F

DRIVE BELTS EM-175
[VK45DE]
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Revision: 2006 December 2006 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-180
[VK45DE]
INTAKE MANIFOLD
Revision: 2006 December 2006 FX35/FX45

Refer to GI-11, "Components" for symbol marks in the figure.
Removal and InstallationNBS004LY
REMOVAL
WARNING:
To avoid the danger of being scalded, never drain the engine coolant when the engine is hot.
1. Remove engine cover with power tool.
2. Release fuel pressure. Refer to EC-746, "
FUEL PRESSURE RELEASE" .
3. Remove air duct (inlet), power duct, air cleaner case and air duct and resonator assembly. Refer to EM-
177, "AIR CLEANER AND AIR DUCT" .
4. Drain engine coolant from radiator. Refer to CO-38, "
DRAINING ENGINE COOLANT" .
CAUTION:

Perform this step when the engine is cold.

Do not spill engine coolant on drive belts.
1. PCV tube 2. PCV hose 3. PCV hose
4. Engine cover bracket (RH) 5. EVAP canister purge control sole-
noid valve 6. EVAP hose
7. EVAP service port 8. EVAP tube 9. Vacuum hose
10. Vacuum hose 11. PCV hose 12. PCV tube
13. PCV hose 14. PCV hose 15. Water hose
16. EVAP hose 17. Water hose 18. Intake manifold adapter
19. Gasket 20. Electric throttle control actuator 21. Gasket
22. Gasket 23. Intake manifold (lower) 24. Vacuum hose
25. VIAS control solenoid valve 26. Vacuum hose 27. Vacuum hose
28. Vacuum tank 29. Vacuum hose 30. Engine cover bracket (LH)
31. Vacuum hose 32. Water hose 33. Gasket
34. Intake manifold (upper)
A. To centralized under-floor piping B. To rocker cover (right bank) C. To rocker cover (left bank)
D. To thermostat housing E. To air duct and resonator assembly F. To heater pipe
PBIC4553E

EXHAUST MANIFOLD AND THREE WAY CATALYST EM-183
[VK45DE]
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Revision: 2006 December 2006 FX35/FX45
EXHAUST MANIFOLD AND THREE WAY CATALYSTPFP:14004
ComponentsNBS003HZ

Refer to GI-11, "Components" for symbol marks in the figure.
Removal and InstallationNBS003I0
REMOVAL
WARNING:
Perform the work, when the exhaust and cooling system have completely cooled down.
1. Remove engine cover with power tool. Refer to EM-173, "
ENGINE ROOM COVER" .
2. Remove front and rear engine undercovers with power tool.
3. Remove air duct (inlet), air cleaner case and mass air flow sensor assembly, air duct and resonator assembly. Refer to EM-177, "
AIR CLEANER AND AIR DUCT" .
4. Remove front cross bar. Refer to FSU-6, "
FRONT SUSPENSION ASSEMBLY" .
5. Drain engine coolant from radiator. Refer to CO-38, "
Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
6. Remove radiator. Refer to CO-41, "
RADIATOR" .
1. Air fuel ratio sensor 1 (bank 2) 2. Exhaust manifold cover (right bank) 3. Exhaust manifold (right bank)
4. Gasket 5. Exhaust manifold (left bank) 6. Exhaust manifold cover (left bank)
7. Air fuel ratio sensor 1 (bank 1) 8. Three way catalyst cover (right bank) 9. Three way catalyst (right bank)
10. Heated oxygen sensor 2 (bank 2) 11. Gasket 12. Three way catalyst cover (left bank)
13. Heated oxygen sensor 2 (bank 1) 14. Three way catalyst (left bank) 15. Mounting bracket
16. Mounting bracket
A. Protrusion for installation confirma-
tion.
:Above
PBIC4549E

EM-188
[VK45DE]
OIL PAN AND OIL STRAINER
Revision: 2006 December 2006 FX35/FX45

Do not spill engine oil on drive belts.
6. Drain engine coolant. Refer to CO-38, "
Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
7. Remove drive belts. Refer to EM-174, "
DRIVE BELTS" .
8. Remove auto tensioner of power steering oil pump belt. Refer to EM-176, "
Drive Belt Auto Tensioner and
Idler Pulley" .
9. Remove power steering oil pump with piping connected, and temporarily secure it aside with ropes or equivalent. Refer to PS-29, "
POWER STEERING OIL PUMP" .
10. Remove A/C compressor with piping connected, and temporarily secure it aside with ropes or equivalent. Refer to ATC-139, "
Components" .
11. Remove A/C compressor fitting bolts, and install A/C compressor temporarily on vehicle side with ropes or equivalent.
12. Remove harness of lower side of oil pan.
13. Remove crankshaft position sensor (POS) from transmission. CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble it.

Do not allow metal powder to adhere to magnetic part at sensor tip.

Do not place sensors in a location where they are exposed to magnetism.
14. Install engine slinger and hang engine assembly to secure position. Refer to EM-243, "
ENGINE ASSEM-
BLY" .
15. Remove front suspension member with power tool. Refer to FSU-17, "
FRONT SUSPENSION MEMBER" .
16. Remove front final drive assembly. Refer to FFD-13, "
FRONT FINAL DRIVE ASSEMBLY" .
17. Remove oil filter. Refer to LU-28, "
OIL FILTER" .
18. Disconnect oil cooler water hoses, and remove oil cooler water pipe and oil cooler. Refer to LU-29, "
OIL
COOLER" .
19. Remove oil pan as the follows:
a. Remove rear plate cover.
b. Remove transmission joint bolts which pierce oil pan. Refer to AT- 2 6 9 , "
Removal and Installation (AWD
Models)" .
c. Loosen mounting bolts with power tool in reverse order as shown in the figure.
NOTE:
Disregard the numerical order No. 11 and 17 in removal.
PBIC0194E