engine INFINITI FX35 2008 Service Manual

OIL PAN AND OIL STRAINEREM-41
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b. Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) to the oil pan (lower) as shown in the
figure.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-44, "
Recommended Chemical Product and Sealant".
CAUTION:
Attaching should be done wi thin 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 toEM-35, "
Component (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-5, "Inspection".
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-5, "
Inspection".
PBIC2657E
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EM-42
< SERVICE INFORMATION >[VQ35DE]
IGNITION COIL
IGNITION COIL
ComponentINFOID:0000000001325720
Removal and InstallationINFOID:0000000001325721
REMOVAL
1. Remove engine cover with power tool. Refer to
EM-19, "Component".
2. Remove air duct (At the left bank side, remove ignition coil). Refer to EM-17, "
Component".
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
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SPARK PLUG (PLATINUM-TIPPED TYPE)EM-43
< SERVICE INFORMATION > [VQ35DE]
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SPARK PLUG (PLATINUM-TIPPED TYPE)
ComponentINFOID:0000000001325722
Removal and InstallationINFOID:0000000001325723
REMOVAL
1. Remove engine cover with power tool. Refer to
EM-19, "Component".
2. Remove ignition coil. Refer to EM-42, "
Component".
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
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FUEL INJECTOR AND FUEL TUBEEM-45
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FUEL INJECTOR AND FUEL TUBE
ComponentINFOID:0000000001325724
CAUTION:
Do not remove or disassemble parts unless
instructed as shown in the figure.
Removal and InstallationINFOID:0000000001325725
REMOVAL
WARNING:
 Put a “CAUTION: FLAMMABLE” sign in the workshop.
 Be sure to work in a well ventilated area and furnish workshop with a CO
2 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, "
Component".
2. Release fuel pressure. Refer to EC-87, "
Fuel Pressure Check".
3. Drain engine coolant, or when water hoses are disconnec ted, attach plug to prevent engine coolant leak-
age. Refer to CO-10, "
Changing Engine Coolant" and EM-19, "Component".
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 in jector 12. O-ring (brown)
13. Hose clamp 14. Bracket 15. Quick connector cap
16. Centralized under-floor piping
SBIA0580E
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FUEL INJECTOR AND FUEL TUBEEM-47
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 To keep clean the connecting portion and to avoid dam-
age and foreign materials, cover them completely with
plastic bags or something similar.
6. Remove intake manifold collectors (upper and lower). Refer to EM-19, "
Component".
7. Disconnect harness connector from fuel injector.
8. Loosen mounting bolts in reverse order as shown in the figure, and remove fuel tube and fuel injector assembly.
CAUTION:
Do not tilt it, or remaining fu el in pipes may flow out from
pipes.
9. Remove spacers on intake manifold.
10. Remove fuel injector from fuel tube as follows:
a. Open and remove clip.
b. Remove fuel injector from fuel tube by pulling straight. CAUTION:
 Be careful with remaining fuel that may go out from fuel
tube.
 Be careful not to damage in jector nozzles during removal.
 Do not bump or drop fuel injector.
 Do not disassemble fuel injector.
11. Remove fuel sub-tube and fuel damper.
INSTALLATION
1. Install fuel damper and fuel sub-tube.  When handling new O-rings, be careful of the following caution:CAUTION:
 Handle O-ring with bare hands. Do not wear gloves.
 Lubricate O-ring with new engine oil.
PBIC1899E
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EM-48
< SERVICE INFORMATION >[VQ35DE]
FUEL INJECTOR AND FUEL TUBE
 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 stretc hed 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 stretc hed while it was being attached, do not insert it
quickly into fuel tube.
 Insert O-ring straight into fuel in jector. 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 fixing 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 withcutouts 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
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FUEL INJECTOR AND FUEL TUBEEM-49
< SERVICE INFORMATION > [VQ35DE]
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 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, "
Component".
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 t hat 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 st raightly 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 pipi ng 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 indirection 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.
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. 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
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EM-50
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FUEL INJECTOR AND FUEL TUBE
NOTE:
Use mirrors for checking at points out of clear sight.
2. Start the engine. With engine speed increased, make su re again that there are no fuel leaks at connection
points.
CAUTION:
Do not touch the engine immediately after st opped, as the engine becomes extremely hot.
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ROCKER COVEREM-51
< SERVICE INFORMATION > [VQ35DE]
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ROCKER COVER
ComponentINFOID:0000000001325726
Removal and InstallationINFOID:0000000001325727
REMOVAL
1. Remove engine cover with power tool. Refer to
EM-19, "Component".
2. Release the fuel pressure. Refer to EC-87, "
Fuel Pressure Check".
3. Drain engine coolant, or when water hoses are disconnec ted, attach plug to prevent engine coolant leak-
age. Refer to CO-10, "
Changing Engine Coolant" and EM-19, "Component".
CAUTION:
Perform this step when the engine is cold.
4. Remove intake manifold collectors (upper and lower). Refer to EM-19, "
Component".
5. Separate engine harness removing thei r brackets from rocker covers.
6. Remove ignition coil. Refer to EM-42, "
Component".
7. Remove PCV hoses from rocker covers.
8. Remove PCV valve and O-ring from rocker cover (right bank), if necessary.
9. Remove oil filler cap and oil catcher from rocker cover (left bank), if necessary.
1. PCV hose 2. Oil filler cap 3. Oil catcher
4. Rocker cover (right bank) 5. PCV control valve 6. O-ring
7. Rocker cover gasket 8. Rocker cover (left bank)
PBIC2303E
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EM-54
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FRONT TIMING CHAIN CASE
FRONT TIMING CHAIN CASE
Removal and InstallationINFOID:0000000001325728
NOTE:
 This section describes removal/installation procedure
of front timing chain case and timing chain related
parts without removing oil pan (upper) on the vehicle.
 When oil pan (upper) needs to be removed or installed, or when rear timing chain case is removed or installed, remove oil pans (upper and lower) first. Then remove front timing chain case, timing chain related
parts, and rear timing chain case in this order, and install in reverse order of removal. Refer to EM-64, "
Com-
ponent".
 Refer to EM-64, "
Component" for component parts location.
REMOVAL
1. Disconnect negative battery terminal. Refer to SC-4, "How to Handle Battery".
2. Remove engine cover with power tool. Refer to EM-19, "
Component".
3. Remove air cleaner case assembly. Refer to EM-17, "
Component".
4. Remove front and rear engine undercover with power tool.
5. Release the fuel pressure. Refer to EC-87, "
Fuel Pressure Check".
6. Drain engine oil. Refer to LU-7, "
Changing Engine Oil".
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine oil on drive belts.
7. Drain engine coolant from radiator. Refer to CO-10, "
Changing Engine Coolant".
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine coolant on drive belts.
8. Separate engine harnesses removing their brackets from front timing chain case.
9. Remove drive belts. Refer to EM-15, "
Removal and Installation".
10. Remove intake manifold colle ctors (upper and lower). Refer to EM-19, "
Component".
11. Remove power steering oil pump from bracket with piping connected, and temporarily secure it aside.
Refer to PS-27, "
On-Vehicle Inspection and Service".
12. Remove power steering oil pump bracket. Refer to PS-27, "
On-Vehicle Inspection and Service".
13. Remove alternator. Refer to SC-19, "
System Description".
14. Remove water bypass hose, water hose clamp and idler pulley bracket from front timing chain case.
15. Remove intake valve timing control covers.  Loosen mounting bolts in reverse order as shown in the figure.
 Use the seal cutter [SST: KV10111100 (J37228)] to cut liquidgasket for removal.
CAUTION:
Shaft is internally jointed wi th camshaft sprocket (INT) cen-
ter hole. When removing, keep it horizontal until it is com-
pletely disconnected.
SEM728G
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