sensor INFINITI FX35 2006 Service Manual

OIL PAN AND OIL STRAINER EM-187
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Revision: 2006 December 2006 FX35/FX45
OIL PAN AND OIL STRAINERP F P : 1111 0
ComponentsNBS003I1

Refer to GI-11, "Components" for symbol marks in the figure.
Removal and InstallationNBS003I2
REMOVAL
WARNING:
To avoid the danger of being scalded, do not drain engine oil when engine is hot.
1. Remove front road wheels and tires.
2. Remove hood assembly. Refer to BL-13, "
HOOD" .
3. Remove engine cover with power tool. Refer to EM-173, "
ENGINE ROOM COVER" .
4. Remove front and rear engine undercovers with power tool.
5. Drain engine oil. Refer to LU-27, "
Changing Engine Oil" .
CAUTION:

Perform this step when engine is cold.
1. Oil pan 2. O-ring 3. Crankshaft position sensor (POS)
4. Baffle plate 5. O-ring 6. Baffle plate
7. Oil pressure switch 8. Gasket 9. Oil strainer
10. Drain plug 11. Drain plug washer 12. O-ring
13. Oil cooler 14. Connector bolt 15. Oil filter
16. O-ring 17. Axle pipe 18. O-ring
19. Rear plate cover 20. Relief valve
A. Oil pan side B. Refer to LU-29
C. Refer to LU-28
PBIC4556E

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

IGNITION COIL EM-191
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Revision: 2006 December 2006 FX35/FX45
IGNITION COILPFP:22448
ComponentsNBS003I3
Removal and InstallationNBS003I4
REMOVAL
1. Remove engine cover with power tool. Refer to EM-173, "ENGINE ROOM COVER" .
2. 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" .
3. Disconnect harness connector from ignition coil.
4. Remove ignition coil. CAUTION:
Do not shock it.
INSTALLATION
Install in the reverse order of removal.
1. Ignition coil 2. Spark plug
PBIC1589E

EM-200
[VK45DE]
ROCKER COVER
Revision: 2006 December 2006 FX35/FX45
ROCKER COVERPFP:13264
ComponentsNBS003I9
Removal and InstallationNBS003IA
REMOVAL
1. Remove engine cover with power tool. Refer to EM-173, "ENGINE ROOM COVER" .
2. Release the fuel pressure. Refer to EC-746, "
FUEL PRESSURE RELEASE" .
3. Refer to the following for incidental works related to left bank.
a. 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" .
b. Move harness on upper rocker cover and its peripheral aside.
c. Remove harness brackets from camshaft bracket (No. 6). Refer to EM-215, "
CAMSHAFT" .
d. Remove electric throttle control actuator. Refer to EM-179, "
INTAKE MANIFOLD" .
e. Remove ignition coil. Refer to EM-191, "
IGNITION COIL" .
f. Remove PCV hose from PCV valve.
4. Refer to the following for incidental works related to right bank.
a. Move harness on upper rocker cover and its peripheral aside.
b. Remove ignition coil EM-191, "
IGNITION COIL" .
c. Remove PCV hose from PCV valve.
5. Remove PCV valves and O-rings from rocker covers (right and left bank), if necessary.
6. Remove oil filler cap and oil catcher from rocker cover (right bank), if necessary.
1. Rocker cover (left bank) 2. PCV valve 3. O-ring
4. Rocker cover gasket (left bank) 5. Rocker cover (right bank) 6. PCV valve
7. O-ring 8. Oil filler cap 9. Oil catcher
10. Rocker cover gasket (right bank)
PBIC2353E

EM-204
[VK45DE]
TIMING CHAIN
Revision: 2006 December 2006 FX35/FX45

Refer to GI-11, "Components" for symbol marks in the figure.
Removal and InstallationNBS003IC
REMOVAL
1. Remove engine assembly from vehicle. Refer to EM-243, "ENGINE ASSEMBLY" .
2. Remove the following components and related parts:

Drive belt auto tensioner and idler pulley; Refer to EM-176, "Drive Belt Auto Tensioner and Idler Pulley"
.

Thermostat housing and hoses; Refer to CO-53, "THERMOSTAT AND WATER CONTROL VALVE" .

Ignition coil; Refer to EM-191, "IGNITION COIL" .

Rocker cover; Refer to EM-200, "ROCKER COVER" .
3. If necessary, remove intake valve timing control position sensor (right and left bank) and camshaft position sensor (PHASE) from
intake valve timing control cover and front cover.
CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble.
4. If necessary, remove intake valve timing control solenoid valve from intake valve timing control cover. CAUTION:

Handle components and parts carefully to avoid dropping and shocks.

Do not disassemble.

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.
1. Camshaft sprocket (EXH) 2. Camshaft sprocket (INT) 3. Camshaft sprocket (INT)
4. Camshaft sprocket (EXH) 5. Front cover 6. Intake valve timing control solenoid
valve (right bank)
7. O-ring 8. Seal ring 9. Intake valve timing control position
sensor (right bank)
10. O-ring 11. Intake valve timing control cover
(right bank) 12.Intake valve timing control position
sensor (left bank)
13. O-ring 14. Intake valve timing control cover (left
bank) 15. Seal ring
16. Intake valve timing control solenoid
valve (left bank) 17. O-ring 18. Oil level gauge
19. Oil level gauge guide 20. O-ring 21. Crankshaft pulley bolt
22. Crankshaft pulley 23. Front oil seal 24. Chain tensioner cover
25. Camshaft position sensor (PHASE) 26. O-ring 27. Oil pump drive spacer
28. Oil pump assembly 29. Crankshaft sprocket 30. O-ring
31. O-ring 32. Timing chain tension guide
(right bank) 33.
Timing chain slack guide
(right bank)
34. Timing chain (right bank) 35. Timing chain (left bank) 36. Chain tensioner (left bank)
37. Chain tensioner (right bank) 38. Timing chain slack guide
(left bank) 39.
Timing chain tension guide
(left bank)
40. O-ring
A. Refer to EM-208
.
PBIC0050E

TIMING CHAIN EM-213
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Revision: 2006 December 2006 FX35/FX45
b. Install new O-rings on front cover.
c. Apply a continuous bead of liquid gasket with tube presser [SST: WS3930000 ( — )] to intake valve timing control covers as
shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS".
d. Tighten mounting bolts in numerical order as shown in the fig- ure.
12. Install intake valve timing control position sensor, intake valve timing control solenoid valve and camshaft position sensor (PHASE) to intake valve timing control cover and front cover if removed.

Be sure to tighten mounting bolts with flanges completely seated.
13. Install oil pan and oil strainer. Refer to EM-187, "
OIL PAN AND OIL STRAINER" .
14. Install crankshaft pulley as follows:
a. Fix crankshaft with ring gear stopper [SST: J-45476].
b. Install crankshaft pulley, taking care not to damage front oil seal.

Install according to dowel pin of oil pump drive spacer.

Lightly tapping its center with plastic hammer, insert pulley.
CAUTION:
Do not tap pulley on the side surface where belt is installed (outer circumference).
c. Apply engine oil onto threaded parts of crankshaft pulley bolt and seating area.
d. Tighten crankshaft pulley bolt.
e. Put a paint mark on crankshaft pulley aligning with angle mark on crankshaft pulley bolt.
SBIA0374E
SBIA0375E
PBIC0051E
: 93.1 N·m (9.5 kg-m, 69 ft-lb)

CYLINDER HEAD EM-233
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Revision: 2006 December 2006 FX35/FX45

If the engine speed is out of specified range, check battery liquid for proper gravity. Check engine
speed again with normal battery gravity.

If compression pressure is below minimum value, check valve clearances and parts associated with
combustion chamber (valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure compression pressure again.

If some cylinders have low compression pressure, pour small amount of engine oil into the spark plug
hole of the cylinder to re-check it for compression.
–If the added engine oil improves the compression, piston rings may be worn out or damaged. Check the
piston rings and replace if necessary.
–If the compression pressure remains at low level despite the addition of engine oil, valves may be mal-
functioning. Check valves for damage. Replace valve or valve seat accordingly.

If two adjacent cylinders have respectively low compression pressure and their compression remains
low even after the addition of engine oil, cylinder head gaskets are leaking. In such a case, replace cyl-
inder head gaskets.
8. After inspection is completed, install removed parts in the reverse order of removal.
9. Start engine, and make sure that engine runs smoothly.
10. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-748, "
TROUBLE DIAGNOSIS" .
ComponentsNBS003IK
Removal and InstallationNBS003IL
REMOVAL
1. Remove engine assembly from vehicle. Refer to EM-243, "ENGINE ASSEMBLY" .
2. Remove exhaust manifold. Refer to EM-183, "
EXHAUST MANIFOLD AND THREE WAY CATALYST" .
3. Remove camshaft. Refer to EM-215, "
CAMSHAFT" .
1. Engine coolant temperature sensor 2. Washer 3. Cylinder head gasket (left bank)
4. Harness bracket 5. Cylinder head (right bank) 6. Cylinder head bolt
7. Cylinder head gasket (right bank) 8. Cylinder head bolt 9. Cylinder head (left bank)
PBIC2756E

EM-244
[VK45DE]
ENGINE ASSEMBLY
Revision: 2006 December 2006 FX35/FX45
Preparation
1. Release fuel pressure. Refer to EC-746, "FUEL PRESSURE RELEASE" .
2. 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.
3. Disconnect both battery terminal. Refer to SC-4, "
BATTERY" .
4. Remove crankshaft position sensor (POS) from transmission. CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble.

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.
5. Remove the following parts:

Hood assembly; Refer to BL-13, "HOOD" .

Engine cover; Refer to EM-173, "ENGINE ROOM COVER" .

Front and rear engine undercover

Air duct (inlet), air duct and air cleaner case assembly; Refer to EM-177, "AIR CLEANER AND AIR
DUCT" .

Drive belts; Refer to EM-174, "DRIVE BELTS" .

Radiator and radiator hoses (upper and lower); Refer to CO-41, "RADIATOR" .

Front road wheels and tires
Engine Room LH
1. Disconnect engine room harness from the engine side and set it aside for easier work.
2. Disconnect heater hoses, and install plugs to avoid leakage of engine coolant.
3. Disconnect ground cable from exhaust manifold cover to vehicle.
4. Disconnect vacuum hose between vehicle and engine and set it aside.
5. Discharge refrigerant from A/C circuit. Refer to ATC-137, "
REFRIGERANT LINES" .
6. Remove A/C piping from A/C compressor, and temporarily fasten it on vehicle with a rope. Refer to AT C -
139, "Components" .
Engine Room RH
1. Disconnect fuel feed hose and EVAP hose. Refer to EM-194, "FUEL INJECTOR AND FUEL TUBE" .
CAUTION:
Fit plugs onto disconnected hose to prevent fuel leak.
2. Disconnect engine room harness from the engine side and set it aside for easier work.
3. Disconnect ground cable from exhaust manifold cover to vehicle.
4. Disconnect vacuum hose between vehicle and engine and set it aside.
5. Disconnect reservoir tank of power steering oil pump from engine, and move it aside for easier work. CAUTION:
When temporarily securing, keep reservoir tank upright to avoid a fluid leak.
Vehicle Underbody
1. Remove front cross bar. Refer to FSU-6, "FRONT SUSPENSION ASSEMBLY" .
2. Disconnect power steering oil pump from engine. Move it from its location and secure with a rope for eas- ier work. Refer to PS-31, "
Removal and Installation (VK45DE Models)" .
3. Remove A/T fluid cooler tube. Refer to AT- 2 6 6 , "
TRANSMISSION ASSEMBLY" .
4. Remove exhaust front tube and center muffler with power tool. Refer to EX-3, "
EXHAUST SYSTEM" .
5. Remove RH and LH transverse link mounting bolts and nuts. Refer to FSU-14, "
TRANSVERSE LINK" .
6. Disconnect stabilizer connecting rod lower. Refer to FSU-6, "
FRONT SUSPENSION ASSEMBLY" .
7. Remove A/T control rod at control device assembly side. Then temporarily secure it on transmission, so that it does not sag. Refer to AT- 2 2 9 , "
SHIFT CONTROL SYSTEM" .

EM-248
[VK45DE]
CYLINDER BLOCK
Revision: 2006 December 2006 FX35/FX45
CYLINDER BLOCKPFP:11010
ComponentsNBS003IQ
1. Knock sensor sub harness 2. Knock sensor 3. Cylinder block
4. Cover 5. Main bearing 6. Top ring
7. Second ring 8. Oil ring 9. Crankshaft key
10. Piston 11. Connecting rod 12. Snap ring
PBIC4691E

CYLINDER BLOCK EM-249
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Revision: 2006 December 2006 FX35/FX45

Refer to GI-11, "Components" for symbol marks in the figure.
Disassembly and AssemblyNBS003IR
DISASSEMBLY
NOTE:
Explained here is how to disassemble with engine stand supporting transmission surface. When using differ-
ent type of engine stand, note with difference in steps and etc.
1. Remove engine assembly from vehicle, and separate front suspension member, transmission and front final drive from engine. Refer to EM-243, "
ENGINE ASSEMBLY" .
2. Remove the parts that may restrict installation of engine to widely use engine stand.
NOTE:
The procedure is described assuming that you use widely use engine holding the surface, to which trans-
mission is installed.
a. Remove drive plate.

Holding ring gear with ring gear stopper (SST).

Loosen mounting bolts diagonally order.
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.
b. Remove engine rear plate.
3. Lift engine with hoist to install it onto widely use engine stand. CAUTION:
Use engine stand that has a load capacity [approximately 240 kg (529 lb) or more] large enough for
supporting the engine weight.

If the load capacity of stand is not adequate, remove the following parts beforehand to reduce the
potential risk of overturning stand.
13. Piston pin 14. Connecting rod bearing 15. Connecting rod bearing cap
16. Block heater protector 17. Connector cap 18. Cylinder block heater
19. Gasket 20. Main bearing cap 21. Thrust bearing
22. Main bearing 23. Rear plate 24. Crankshaft
25. Pilot converter 26. Drive plate 27. Thrust bearing
28. Side bolt 29. Reinforcement plate 30. Crankshaft position sensor (POS)
31. O-ring 32. Rear oil seal 33. Rear oil seal retainer
A. Refererence: Installed on transmis-
sion B. Refer to
EM-253
C. Right bank
D. Cylinder block heater (For Canada) E. Chamfered F. Crankshaft side : Engine front
PBIC1656E
PBIC2367E