engine INFINITI FX35 2007 Service Manual

OIL PAN AND OIL STRAINER EM-35
[VQ35DE]
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Revision: 2006 July 2007 FX35/FX45

Tighten mounting bolts in numerical order as shown in the fig-
ure.
4. Install oil pan drain plug.

Refer to the figure of components of former page for installation direction of drain plug washer. Refer to
EM-30, "
Components (2WD Models)" .
5. Install in the reverse order of removal after this step.
NOTE:
At least 30 minutes after oil pan is installed, pour engine oil.
INSPECTION AFTER INSTALLATION
1. Check the engine oil level and adjust engine oil. Refer to LU-7, "ENGINE OIL" .
2. Start engine, and check there is no leak of engine oil.
3. Stop engine and wait for 10 minutes.
4. Check the engine oil level again. Refer to LU-7, "
ENGINE OIL" .
Components (AWD Models)NBS003GD
PBIC0782E
SBIA0567E

EM-36
[VQ35DE]
OIL PAN AND OIL STRAINER
Revision: 2006 July 2007 FX35/FX45
Removal and Installation (AWD Models)NBS003GE
REMOVAL
CAUTION:
To avoid the danger of being scalded, never drain engine oil when the engine is hot.
NOTE:
To remove oil pan (lower) only, take step 5, then step 24. Removal of step 1, hood assembly (step 2) and step
4 are unnecessary.
1. Remove front tire.
2. Remove hood assembly. Refer to BL-13, "
HOOD" .
3. Remove front and rear engine undercover with power tool.
4. Remove front cross bar with power tool. Refer to FSU-6, "
FRONT SUSPENSION ASSEMBLY" .
5. Drain engine oil. Refer to LU-9, "
Changing Engine Oil" .
CAUTION:

Perform this step when the engine is cold.

Do not spill engine oil on drive belts.
6. Drain engine coolant. Refer to CO-11, "
Changing Engine Coolant" .
CAUTION:

Perform this step when the engine is cold.

Do not spill engine coolant on drive belts.
7. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
8. Remove air hose from air duct to mass air flow sensor side and electric throttle control actuator side. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
9. Remove drive belts. Refer to EM-15, "
DRIVE BELTS" .
10. Remove front drive shaft (LH and RH) and side shaft. Refer to FAX-12, "
FRONT DRIVE SHAFT" .
11. Remove side shaft. Refer to FFD-13, "
FRONT FINAL DRIVE ASSEMBLY" .
12. Removal engine rear lower slinger, and install engine rear slinger [SST: 10006 31U00 ( — )] to sling engine assembly for positioning. Refer to EM-8, "
Special Service Tools" .
13. Remove front suspension member. Refer to FSU-17, "
FRONT SUSPENSION MEMBER" .
14. Remove engine mounting bracket, engine mounting bracket (lower) and insulator. Refer to EM-113,
"ENGINE ASSEMBLY" .
15. Remove front propeller shaft. Refer to PR-4, "
FRONT PROPELLER SHAFT" .
16. Remove oil filter and oil filter bracket. Refer to LU-12, "
OIL FILTER BRACKET (AWD)" .
17. Remove alternator stay. Refer to SC-24, "
CHARGING SYSTEM" .
18. Remove idler pulley and bracket. Refer to EM-15, "
DRIVE BELTS" .
19. Disconnect oil cooler water hoses, and remove oil cooler water pipe mounting bolt. Refer to LU-14, "
OIL
COOLER" .
20. Disconnect A/T fluid cooler hoses, and remove A/T fluid cooler tube. Refer to AT- 2 6 6 , "
TRANSMISSION
ASSEMBLY" .
21. Remove front final drive assembly. Refer to FFD-13, "
FRONT FINAL DRIVE ASSEMBLY" .
22. Remove starter motor. Refer to SC-11, "
STARTING SYSTEM" .
23. Remove crankshaft position sensor (POS).
1. Oil pan gasket (rear) 2. Oil pan (upper) 3. O-ring
4. Oil pan gasket (front) 5. Oil filter 6. Connector bolt
7. Oil cooler 8. O-ring 9. Relief valve
10. Oil filter bracket 11. Oil filter bracket gasket 12. Oil strainer
13. Drain plug 14. Drain plug washer 15. Oil pan (lower)
16. Rear plate cover 17. Crankshaft position sensor (POS) 18 O-ring (small)
19. O-ring (large) 20. Axle pipe
Slinger bolts: : 28.0 N·m (2.9 kg-m, 21 ft-lb)

EM-38
[VQ35DE]
OIL PAN AND OIL STRAINER
Revision: 2006 July 2007 FX35/FX45
29. Remove oil pan gaskets.
30. Remove axle pipe, as necessary.

Remove axle pipe from oil pan (upper) using a suitable drift
[outer diameter: 37 mm (1.46 in)].
INSPECTION AFTER REMOVAL
Clean oil strainer if any object attached.
INSTALLATION
1. Install axle pipe to oil pan, if removed.

Lubricate O-ring groove of axle pipe, O-ring, and O-ring joint
of oil pan with new engine oil.
Unit: mm (in)

Install axle pipe to oil pan (upper) from axle pipe flange side
(left side) using a suitable drift [outer diameter: 43 to 57 mm
(1.69 to 2.24 in)].
CAUTION:
Insert it with care to prevent O-ring from sliding.
2. Install oil pan (upper) as follows:
PBIC1145E
SBIA0469E
Item O-ring inner diameter
Final drive side (right side) 32 (1.26)
Axle pipe flange side (left side) 34 (1.34)
SBIA0470E
SBIA0471E

OIL PAN AND OIL STRAINER EM-41
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Revision: 2006 July 2007 FX35/FX45
b. Apply a continuous bead of liquid gasket with the tube presser
[SST: WS39930000 ( — )] to the oil pan (lower) as shown in
the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
CAUTION:
Attaching should be done within 5 minutes after coating.
c. Install oil pan (lower).

Tighten mounting bolts in numerical order as shown in the fig-
ure.
5. Install oil pan drain plug.

Refer to the figure of components of former page for installation direction of drain plug washer. Refer to
EM-35, "
Components (AWD Models)" .
6. Install in the reverse order of removal after this step.
NOTE:
At least 30 minutes after oil pan is installed, pour engine oil.
INSPECTION AFTER INSTALLATION
1. Check the engine oil level and adjust engine oil. Refer to LU-7, "ENGINE OIL" .
2. Start engine, and check there is no leak of engine oil.
3. Stop engine and wait for 10 minutes.
4. Check the engine oil level again. Refer to LU-7, "
ENGINE OIL" .
PBIC2657E
PBIC0782E

EM-42
[VQ35DE]
IGNITION COIL
Revision: 2006 July 2007 FX35/FX45
IGNITION COILPFP:22448
ComponentsNBS003GF
Removal and InstallationNBS003GG
REMOVAL
1. Remove engine cover with power tool. Refer to EM-19, "INTAKE MANIFOLD COLLECTOR" .
2. Remove air duct (At the left bank side, remove ignition coil). Refer to EM-17, "
AIR CLEANER AND AIR
DUCT" .
3. Move aside harness, harness bracket, and hoses located above ignition coil.
4. Disconnect harness connector from ignition coil.
5. Remove ignition coil. CAUTION:
Do not shock it.
INSTALLATION
Installation is the reverse order of removal.
1. Ignition coil 2. Spark plug 3. Rocker cover (left bank)
A. Left bank
PBIC4359E

SPARK PLUG (PLATINUM-TIPPED TYPE) EM-43
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Revision: 2006 July 2007 FX35/FX45
SPARK PLUG (PLATINUM-TIPPED TYPE)PFP:22401
ComponentsNBS003GH
Removal and InstallationNBS003GI
REMOVAL
1. Remove engine cover with power tool. Refer to EM-19, "INTAKE MANIFOLD COLLECTOR" .
2. Remove ignition coil. Refer to EM-42, "
IGNITION COIL" .
3. Remove spark plug with a spark plug wrench (commercial ser- vice tool).
INSPECTION AFTER REMOVAL
Use the standard type spark plug for normal condition.
The hot type spark plug is suitable when fouling occurs with the standard type spark plug under conditions
such as:

Frequent engine starts

Low ambient temperatures
The cold type spark plug is suitable when spark knock occurs with the standard type spark plug under condi-
tions such as:

Extended highway driving

Frequent high engine revolution
1. Ignition coil 2. Spark plug 3. Rocker cover (left bank)
A. Left bank
PBIC4359E
SEM294A
Make NGK
Standard type PLFR5A-11
Hot type PLFR4A-11
Cold type PLFR6A-11

FUEL INJECTOR AND FUEL TUBE EM-45
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Revision: 2006 July 2007 FX35/FX45
FUEL INJECTOR AND FUEL TUBEPFP:16600
ComponentsNBS003GJ
CAUTION:
Do not remove or disassemble parts unless instructed as shown in the figure.
Removal and InstallationNBS003GK
REMOVAL
WARNING:

Put a “CAUTION: FLAMMABLE” sign in the workshop.

Be sure to work in a well ventilated area and furnish workshop with a CO2 fire extinguisher.

Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.

To avoid the danger of being scalded, do not drain engine coolant when the engine is hot.
1. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
2. Release fuel pressure. Refer to EC-85, "
FUEL PRESSURE RELEASE" .
3. Drain engine coolant, or when water hoses are disconnected, attach plug to prevent engine coolant leak- age. Refer to CO-11, "
Changing Engine Coolant" and EM-19, "INTAKE MANIFOLD COLLECTOR" .
CAUTION:
Perform this step when the engine is cold.
1. Fuel damper 2. O-ring 3. Fuel sub-tube
4. EVAP hose 5. Intake manifold collector (lower) 6. Fuel feed hose (with damper)
7. Fuel tube 8. Spacer 9. Clip
10. O-ring (blue) 11. Fuel injector 12. O-ring (brown)
13. Hose clamp 14. Bracket 15. Quick connector cap
16. Centralized under-floor piping
SBIA0580E

EM-48
[VQ35DE]
FUEL INJECTOR AND FUEL TUBE
Revision: 2006 July 2007 FX35/FX45

Lubricate O-ring with new engine oil.

Do not clean O-ring with solvent.

Make sure that O-ring and its mating part are free of foreign material.

When installing O-ring, be careful not to scratch it with tool or fingernails. Also be careful not
to twist or stretch O-ring. If O-ring was stretched while it was being attached, do not insert it
quickly into fuel tube.

Insert new O-ring straight into fuel tube. Do not decenter or twist it.

Insert fuel damper and fuel sub-tube straight into fuel tube.

Tighten mounting bolts evenly in turn.

After tightening mounting bolts, make sure that there is no gap between flange and fuel tube.
2. Install new O-rings to fuel injector, paying attention to the following.
CAUTION:

Upper and lower O-ring are different. Be careful not to confuse them.

Handle O-ring with bare hands. Do not wear gloves.

Lubricate O-ring with new engine oil.

Do not clean O-ring with solvent.

Make sure that O-ring and its mating part are free of foreign material.

When installing O-ring, be careful not to scratch it with tool or fingernails. Also be careful not to
twist or stretch O-ring. If O-ring was stretched while it was being attached, do not insert it
quickly into fuel tube.

Insert O-ring straight into fuel injector. Do not decenter or twist it.
3. Install fuel injector to fuel tube as follows:
a. Insert clip into clip mounting groove on fuel injector.

Insert clip so that protrusion “A” of fuel injector matches cutout
“A” of clip.
CAUTION:

Do not reuse clip. Replace it with a new one.

Be careful to keep clip from interfering with O-ring. If
interference occurs, replace O-ring.
b. Insert fuel injector into fuel tube with clip attached.

Insert it while matching it to the axial center.

Insert fuel injector so that protrusion “B” of fuel tube matches
cutout “B” of clip.

Make sure that fuel tube flange is securely fixed in flange fix-
ing groove on clip.
c. Make sure that installation is complete by checking that fuel injector does not rotate or come off.

Make sure that protrusions of fuel injectors are aligned with
cutouts of clips after installation.
4. Install spacers on intake manifold.
5. Install fuel tube and fuel injector assembly to intake manifold. CAUTION:
Be careful not to let tip of injector nozzle come in contact with other parts. Fuel tube side : Blue
Nozzle side : Brown
PBIC2545E

FUEL INJECTOR AND FUEL TUBE EM-49
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Revision: 2006 July 2007 FX35/FX45

Tighten mounting bolts in two steps in numerical order as
shown in the figure.
6. Connect injector sub-harness.
7. Install intake manifold collectors (upper and lower). Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
8. Install fuel sub-tube on rear end of intake manifold collector (lower).
9. Connect fuel feed hose (with damper).

Handling procedure of O-ring is the same as that of fuel damper and fuel sub-tube.

Insert fuel damper straight into fuel sub-tube.

Tighten mounting bolts evenly in turn.

After tightening mounting bolts, make sure that there is no gap between flange and fuel sub-tube.
10. Connect quick connector between fuel feed hose (with damper) and centralized under-floor piping con- nection as follows:
a. Make sure no foreign substances are deposited in and around centralized under-floor piping and quick connector, and no damage on them.
b. Thinly apply new engine oil around centralized under-floor piping from tip end to spool end.
c. Align center to insert quick connector straightly into centralized under-floor piping.

Insert quick connector to centralized under-floor piping until
top spool is completely inside quick connector, and 2nd level
spool exposes right below quick connector.
CAUTION:

Hold “A” position as shown in the figure when inserting
centralized under-floor piping into quick connector.

Carefully align center to avoid inclined insertion to pre-
vent damage to O-ring inside quick connector.

Insert until you hear a “click” sound and actually feel the
engagement.

To avoid misidentification of engagement with a similar
sound, be sure to perform the next step.
d. Pull quick connector by hand holding “A” position. Make sure it is completely engaged (connected) so that it does not come out from centralized under-floor piping.
e. Install quick connector cap to quick connector connection.

Install quick connector cap with arrow on surface facing in
direction of quick connector (fuel feed hose side).
CAUTION:
If quick connector cap cannot be installed smoothly, quick
connector may have not been installed correctly. Check the
connection again.
11. Install in the reverse order of removal after this step. 1st step
: 10.1 N·m (1.0 kg-m, 7 ft-lb)
2nd step : 23.6 N·m (2.4 kg-m, 17 ft-lb)
KBIA1296E
PBIC2471E
KBIA1298E

EM-50
[VQ35DE]
FUEL INJECTOR AND FUEL TUBE
Revision: 2006 July 2007 FX35/FX45
INSPECTION AFTER INSTALLATION
Check on Fuel Leakage
1. Turn ignition switch “ON” (with the engine stopped). With fuel pressure applied to fuel piping, make sure there are no fuel leaks at connection points.
NOTE:
Use mirrors for checking at points out of clear sight.
2. Start the engine. With engine speed increased, make sure again that there are no fuel leaks at connection points.
CAUTION:
Do not touch the engine immediately after stopped, as the engine becomes extremely hot.