ECU INFINITI FX35 2007 Service Manual

EM-216
[VK45DE]
CAMSHAFT
Revision: 2006 July 2007 FX35/FX45
3. With hexagonal part of camshaft locked with wrench, loosen
bolts securing camshaft sprocket to remove camshaft sprocket.
CAUTION:

Do not loosen mounting bolts with securing anything
other than the camshaft hexagonal portion or with ten-
sioning the timing chain.

After removing timing chain, do not turn crankshaft and
camshaft separately, or valves will strike the piston head.
4. Remove intake and exhaust camshaft brackets.

Mark camshafts, camshaft brackets and bolts so placed in the same position and direction for installa-
tion.

Equally loosen camshaft brackets and bolts in several steps in
reverse order as shown in the figure.

Lightly tapping with plastic hammer, remove camshaft bracket
(No. 1) and camshaft bracket (No. 6).
NOTE:
The bottom surface of each bracket will be stuck to cylinder
head because of liquid gasket.
5. Remove camshaft.
6. Remove adjusting shim and valve lifter if necessary.

Identify installation positions, and store them without mixing them up.
INSPECTION AFTER REMOVAL
Camshaft Runout
1. Put V-block on precise flat table, and support No. 2 and 5 journal of camshaft.
CAUTION:
Do not support journal No. 1 (on the side of camshaft
sprocket) because it has a different diameter from the other
four locations.
2. Set dial indicator vertically to No. 3 journal.
3. Turn camshaft to one direction with hands, and measure the camshaft runout on dial indicator. (Total indicator reading)
4. If it exceeds the limit, replace camshaft.
PBIC0030E
PBIC0031E
Limit : 0.02 mm (0.001 in)PBIC2499E

EM-244
[VK45DE]
ENGINE ASSEMBLY
Revision: 2006 July 2007 FX35/FX45
Preparation
1. Release fuel pressure. Refer to EC-747, "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-5, "
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-32, "
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" .

ENGINE ASSEMBLY EM-245
[VK45DE]
C
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EM
Revision: 2006 July 2007 FX35/FX45
8. Remove rear plate cover from oil pan. Then remove bolts fixing drive plate to torque converter. Refer to
EM-187, "
OIL PAN AND OIL STRAINER" and AT- 2 6 6 , "TRANSMISSION ASSEMBLY" .
9. Remove transmission joint bolts which pierce at oil pan lower rear side. Refer to AT- 2 6 6 , "
TRANSMIS-
SION ASSEMBLY" .
10. Disconnect steering lower joint at power steering gear assembly side, and release steering lower shaft. Refer to PS-13, "
STEERING COLUMN" .
11. Remove rear propeller shaft. Refer to PR-7, "
REAR PROPELLER SHAFT" .

After disconnection, plug the opening on transmission side.
12. Remove front drive shaft (both side). Refer to FAX-12, "
FRONT DRIVE SHAFT" .
13. Remove front propeller shaft. Refer to PR-4, "
FRONT PROPELLER SHAFT" .
14. Remove three way catalyst (both bank). Refer to EM-183, "
EXHAUST MANIFOLD AND THREE WAY
CATALYST" .
Removal Work
1. Install engine slingers into front of cylinder head (left bank) and
front of cylinder head (right bank).
2. Lift with hoist and secure engine in position.
3. Use manual lift table caddy (commercial service tool) or equivalently rigid tool such as transmission jack. Securely support bottom of suspension member and transmission.
CAUTION:
Put a piece of wood or something similar as the supporting surface, secure a completely stable
condition.
4. Remove engine rear member mounting bolts.
5. Remove front suspension member mounting nuts with power tool. Refer to FSU-6, "
FRONT SUSPEN-
SION ASSEMBLY" .
6. Carefully lower jack, or raise lift to remove engine, transmission front final drive and front suspension member assembly. When
performing work, observe the following caution:
CAUTION:

Confirm there is no interference with vehicle.

Make sure that all connection points have been discon-
nected.

Keep in mind the center of vehicle gravity changes. If
necessary, use jack(s) to support vehicle at rear jacking
point(s) to prevent it from falling it off the lift. Slinger bolts:
: 33.4 N·m (3.4 kg-m, 25 ft-lb)
PBIC1556E
PBIC1557E

EM-246
[VK45DE]
ENGINE ASSEMBLY
Revision: 2006 July 2007 FX35/FX45
Separation Work
1. Change engine slinger installing to cylinder head (right bank).
NOTE:
In order to keep secure position when hoisting engine.
2. Remove engine mounting insulators (RH and LH) under side nut with power tool.
3. Lift with hoist and separate engine and transmission assembly from front suspension member. CAUTION:

Before and during this lifting, always make sure that any harnesses are left connected.

Avoid damage to and oil/grease smearing or spills onto engine mounting insulator.
4. Remove alternator. Refer to SC-24, "
CHARGING SYSTEM" .
5. Remove starter motor. Refer to SC-11, "
STARTING SYSTEM" .
6. Separate engine from transmission assembly. Refer to AT- 2 6 9 , "
Removal and Installation (AWD Models)"
.
7. Remove front final drive from engine. Refer to FFD-13, "
FRONT FINAL DRIVE ASSEMBLY" .
8. Remove engine mounting insulators (RH and LH) and brackets (RH and LH) from engine with power tool.
9. Remove engine rear member and engine mounting insulator (rear) from transmission.
INSTALLATION
Note the following, and install in the reverse order of removal.

Do not allow engine mounting insulator to be damage and careful no engine oil gets on it.

For a location with a positioning pin, insert it securely into hole of mating part.

For a part with a specified installation orientation, refer to component figure in EM-243, "Removal and
Installation" .

When installing engine mounting brackets (RH and LH) on cylin-
der block, tighten two upper bolts (shown as “A” in the figure)
first. Then tighten two lower bolts (shown as “B” in the figure).
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The followings are procedures for checking fluids leak, lubricates leak and exhaust gases leak.

Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-12, "
RECOMMENDED FLUIDS AND LUBRICANTS" .

Use procedure below to check for fuel leakage.
–Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel
leakage at connection points.
–Start engine. With engine speed increased, check again for fuel leakage at connection points.

Run engine to check for unusual noise and vibration.

Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gases, or any oil/fluids
including engine oil and engine coolant. Slinger bolts:
: 33.4 N·m (3.4 kg-m, 25 ft-lb)
PBIC2447E
PBIC2365E

EXHAUST SYSTEM EX-5
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Revision: 2006 July 2007 FX35/FX45

Tighten main muffler mounting bracket bolts in numerical order
as shown in the figure.
CAUTION:

Always replace exhaust tube gaskets with new ones when reassembling.

If heat insulator is badly deformed, repair or replace it. If deposits such as mud pile up on the heat
insulator, remove them.

When installing heat insulator avoid large gaps or interference between heat insulator and each
exhaust pipe.

Remove deposits from the sealing surface of each connection. Connect them securely to avoid
gases leakage.

Temporarily tighten mounting nuts on the exhaust manifold side and mounting bolts on the vehi-
cle side. Check each part for unusual interference, and then tighten them to the specified torque.

When installing each mounting rubber, avoid twisting or unusual extension in up/down and right/
left directions.
INSPECTION AFTER INSTALLATION

Make sure clearance between tail tube and bumper is even.

With engine running, check exhaust tube joints for gas leakage and unusual noises.

Check to ensure that mounting brackets and mounting rubbers are installed properly and free from undue
stress. Improper installation could result in excessive noise and vibration.
PBIC1049E

FRONT DRIVE SHAFT FAX-13
[AWD]
C E F
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M A
B
FA X
Revision: 2006 July 2007 FX35/FX45
14. Apply the specified amount of grease (NISSAN genuine grease
or equivalent) inside joint sub-assembly serration hole until
grease begins to ooze from ball groove and serration hole. After
applying grease, use a shop cloth to wipe off old grease that has
oozed out.
15. Wrap serration on shaft with tape to protect the boot from dam- age. Install new boot and boot bands to shaft.
16. Remove the tape wrapped around the serration on shaft.
17. Position circular clip on groove at the shaft edge. Align both counter axles of the shaft edge and joint sub-assembly. Then,
assemble shaft with circular clip onto joint sub-assembly.
NOTE:
Drive joint inserter (suitable tool) is recommended when install-
ing circular clip.
18. Install joint sub-assembly to shaft using plastic hammer. CAUTION:
Confirm that joint sub-assembly is correctly engaged while
rotating drive shaft.
19. Apply the balance of the specified amount of grease (NISSAN genuine grease or equivalent) into the boot inside from large
diameter side of boot.
20. Install the boot securely into grooves (indicated by *marks) shown in the figure.
CAUTION:
If grease adheres to the boot mounting surface (with *mark)
on the shaft and joint sub-assembly, boot may come off.
Remove all grease from the surface.
21. To prevent from the deformation of the boot, adjust the boot installation length to the specified value shown below (L) by
inserting the flat-bladed screwdriver into inside of the boot from
the large diameter side of the boot and discharging the inside
air.
SDIA2775E
SFA800
SDIA2490E
Grease amount : 77 – 97 g (2.71 – 3.42 oz)
SDIA2372E
SDIA1760E

FAX-14
[AWD]
FRONT DRIVE SHAFT
Revision: 2006 July 2007 FX35/FX45
CAUTION:

If the boot mounting length is outside the standard, it may cause breakage in the boot.

Be careful not to touch the inside of the boot with a tip of a flat-bladed screwdriver.
22. Secure the large and small ends of the boot with new boot bands using the boot band crimping tool [SST: KV40107300
( – )] as shown in the figure.
NOTE:
Secure boot band so that dimension “M” meets the specification
as shown.
23. Secure joint sub-assembly and shaft, and then make sure that they are in the correct position when rotating boot. Install them
with new boot band when boot installation positions become
incorrect.
24. Insert drive shaft to wheel hub and bearing assembly, and then temporarily tighten hub lock nut.
25. Install nuts and bolts to steering knuckle and strut.
26. Install break hose bracket to strut assembly. BR-11, "
Removal and Installation of Front Brake Tube and
Brake Hose" .
27. Install wheel sensor to strut assembly. Refer to BRC-57, "
WHEEL SENSORS" .
28. Tighten the hub lock nut to the specified torque.
29. Install cotter pin.
30. Install tires to vehicle. Boot installation length (L) : 136 mm (5.35 in)
RAC1133D
Dimension “M” : 2.0 – 3.0 mm (0.079 – 0.118 in)
DSF0047D

FRONT DRIVE SHAFT FAX-17
[AWD]
C E F
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FA X
Revision: 2006 July 2007 FX35/FX45

Check boot for cracks or other damage, and also for grease
leakage.

If a trouble is found, disassemble drive shaft, and then replace
with new one.
INSTALLATION

Refer to FAX-16, "Removal and Installation (Right Side)" for tightening torque. Install in the reverse order
of removal.
NOTE:
Refer to component parts location and do not reuse non-reusable parts.

Check the following item after service.
–Installation condition of wheel sensor harness.

Place the protector [SST: KV38107900 ( – )] onto front final
drive assembly to prevent damage to the oil seal while inserting
drive shaft. Slide drive shaft sliding joint and tap with a hammer
to install securely. (right side)
CAUTION:
Be sure to check that circular clip is securely fastened.
SFA108A
SDIA0593E

FAX-20
[AWD]
FRONT DRIVE SHAFT
Revision: 2006 July 2007 FX35/FX45
ASSEMBLY
Front Final Drive Assembly Side
1. If plug has been removed, use a drift (SST) to press in a new one.
NOTE:
Discard old plug; replace with new ones.
2. Wind serrated part of shaft with tape. Install boot band and boot to shaft. Be careful not to damage boot.
NOTE:
Discard old boot band and boot; replace with each new one.
3. Remove protective tape wound around serrated part of shaft.
4. Line up alignment marks which were made when spider assem- bly was removed. Install spider assembly, with serration chamfer
facing shaft.
5. Secure spider assembly with snap ring. NOTE:
Discard old snap ring; replace with new one.
6. Apply Nissan genuine grease or equivalent to spider assembly and sliding surface.
SDIA1153E
SFA800
SDIA1792E
SFA023A

FRONT DRIVE SHAFT FAX-21
[AWD]
C E F
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B
FA X
Revision: 2006 July 2007 FX35/FX45
7. Install housing to spider assembly. Apply Nissan genuine grease
or equivalent to housing.
8. Install boot securely into grooves (indicated by *marks) shown in the figure.
CAUTION:
If there is grease on boot mounting surfaces (indicated by *
marks) of shaft and housing, boot may come off. Remove
all grease from surfaces.
9. Make sure boot installation length “L
1 L2 ” is the length indicated
below. Insert a flat-bladed screwdriver or similar tool into smaller
side of boot. Bleed air from boot to prevent boot deformation.
CAUTION:

Boot may break if boot installation length is less than standard value.

Take care not to touch the tip of screwdriver to inside surface of boot.
10. Install new larger and smaller boot bands securely. NOTE:
Discard old boot bands; replace with new ones.
11. After installing housing and shaft, rotate boot to check whether or not the actual position is correct. If boot position is not correct,
secure boot with new boot bands again.
12. Install circular clip. NOTE:
Discard old circular clip; replace with new one.
Wheel Side
Assemble in steps 14 to 23 of FA X - 1 2 , "DRIVE SHAFT BOOT REPLACEMENT" .
Grease amount : 95
− 105 g (3.35 − 3.70 oz)
SDIA1445E
Boot installation Length “L1 L2 ”:
VQ45DE models (L
1 ): 95 − 97 mm (3.74 − 3.82 in)
VK35DE models (L
2 ) : 150.9 − 152.9 mm (5.94 − 6.02 in)
PDIA1255E
SFA395