2004 INFINITI FX35 alternator

OIL PAN AND OIL STRAINER
EM-37
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Revision: 2004 November 2004 FX35/FX45
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 belt for alternator and power steering pump and A/C compressor. Refer to EM-15, "
DRIVE
BELTS" .
10. Remove front drive shaft (LH and RH) and side shaft. Refer to FA X - 1 2 , "
FRONT DRIVE SHAFT" .
11. Remove side shaft. Refer to FFD-10, "
FRONT FINAL DRIVE ASSEMBLY" .
12. Removal engine rear lower slinger, and install engine rear slinger to sling engine assembly for positioning.
Refer to EM-8, "
Special Service Tools" .
13. Remove front suspension member. Refer to Refer to FSU-17, "
FRONT SUSPENSION MEMBER" .
14. Remove engine mounting bracket, engine mounting bracket (lower) and insulator. Refer to EM-110,
"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-23, "
CHARGING SYSTEM" .
18. Remove alternator and power steering pump and A/C compressor idler pulley and bracket. Refer to EM-
15, "DRIVE BELTS" .
19. Disconnect A/T fluid cooler hoses, and remove oil cooler water pipe mounting bolt. Refer to LU-14, "
OIL
COOLER" .
20. Disconnect A/T fluid cooler tube.
21. Remove front final drive assembly. Refer to FFD-10, "
FRONT FINAL DRIVE ASSEMBLY" .
22. Remove starter motor. Refer to SC-10, "
STARTING SYSTEM" .
23. Remove crankshaft position sensor (POS).
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.
24. Remove oil pan (lower) as the following:
a. Loosen bolts in reverse order as shown in the figure to remove.
b. Insert seal cutter (SST) between oil pan (upper) and oil pan
(lower).
c. Slide seal cutter by tapping on the side of tool with hammer.
Remove oil pan (lower).
CAUTION:

Be careful not to damage the mating surface.

Do not insert flat-bladed screwdriver, this will damage the
mating surface.Slinger bolts:
: 28.0 N·m (2.9 kg-m, 21 ft-lb)
PBIC0782E
SEM960F

EM-54
[VQ35DE]
FRONT TIMING CHAIN CASE
Revision: 2004 November 2004 FX35/FX45
FRONT TIMING CHAIN CASEPFP:13599
Removal and InstallationABS004X0
NOTE:

This section describes removal/installation procedure of front timing chain case and timing chain related
parts without removing oil pan (upper) on 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-
63, "TIMING CHAIN" .

Refer to EM-63, "TIMING CHAIN" for component parts location.
REMOVAL
1. Place vehicle onto lift.
2. Disconnect negative battery terminal.
3. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
4. Remove air cleaner case assembly. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
5. Remove front and rear engine undercover with power tool.
6. Drain engine coolant from radiator. Refer to CO-11, "
Changing Engine Coolant" .
7. Drain engine oil from oil pan. Refer to LU-9, "
Changing Engine Oil" .
8. Remove engine harnesses.
9. Remove intake manifold collectors (upper and lower) with power tool. Refer to EM-19, "
INTAKE MANI-
FOLD COLLECTOR" .
10. Remove power steering oil pump from bracket with piping connected, and temporarily secure it aside.
Refer to PS-31, "
POWER STEERING OIL PUMP" .
11. Remove power steering oil pump bracket. Refer to PS-31, "
POWER STEERING OIL PUMP" .
12. Remove alternator. Refer to SC-23, "
CHARGING SYSTEM" .
13. Remove water bypass hose, water hose clamp and idler pulley bracket and alternator and power steering
oil pump and A/C compressor belt tensioner from front timing chain case.
14. Remove right and left intake valve timing control covers with
power tool.

Loosen bolts in reverse order as shown in the figure.

U s e s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 ( J - 3 7 2 2 8 ) ] o r a n e q u i v a l e n t
tool to cut liquid gasket for removal.
CAUTION:
Shaft is internally jointed with intake camshaft sprocket
center hole. When removing, keep it horizontal until it is
completely disconnected.
15. Remove collared O-rings from front timing chain case (left and
right side).
16. Remove right and left rocker covers. Refer to EM-51, "
ROCKER COVER" .
NOTE:
When secondary timing chain is not removed/installed, this step is not required.
SEM728G
PBIC2045E

EM-64
[VQ35DE]
TIMING CHAIN
Revision: 2004 November 2004 FX35/FX45
NOTE:

This section describes procedures for removing/installing front timing chain case and timing chain related
parts, and rear timing chain case, when oil pan (upper) needs to be removed/installed for engine overhaul,
etc.

To remove/install front timing chain case, timing chain, and its related parts without removing oil pan
(upper), refer to EM-54, "
FRONT TIMING CHAIN CASE" .
REMOVAL
1. Place vehicle onto lift.
2. Remove front tire.
3. Disconnect negative battery terminal.
4. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
5. Remove air cleaner case assembly. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
6. Remove front and rear engine undercover with power tool.
7. Drain engine coolant from radiator. Refer to CO-11, "
Changing Engine Coolant" .
8. Drain engine oil from oil pan. Refer to LU-9, "
Changing Engine Oil" .
9. Remove engine harnesses.
10. Remove intake manifold collectors (upper and lower) with power tool. Refer to EM-19, "
INTAKE MANI-
FOLD COLLECTOR" .
11. Remove radiator cooling fan assembly. Refer to CO-21, "
COOLING FAN" .
12. Remove A/C compressor from bracket with piping connected, and temporarily secure it aside. Refer to
ATC-139, "
Components" .
13. Remove power steering oil pump from bracket with piping connected, and temporarily secure it aside.
Refer to PS-31, "
POWER STEERING OIL PUMP" .
14. Remove power steering oil pump bracket. Refer to PS-31, "
POWER STEERING OIL PUMP" .
15. Remove alternator. Refer to SC-23, "
CHARGING SYSTEM" .
16. Remove water bypass hose, water hose clamp and idler pulley bracket from front timing chain case.
17. Remove right and left intake valve timing control covers with
power tool.

Loosen bolts in reverse order as shown in the figure.

U s e s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 ( J - 3 7 2 2 8 ) ] o r a n e q u i v a l e n t
tool to cut liquid gasket for removal.
CAUTION:
Shaft is internally jointed with intake camshaft sprocket
center hole. When removing, keep it horizontal until it is
completely disconnected.
1. Timing chain tensioner (secondary) 2. Internal chain guide 3. Timing chain tensioner (secondary)
4. Camshaft sprocket (EXH) 5. Timing chain (secondary) 6. Timing chain (primary)
7. Camshaft sprocket (INT) 8. Camshaft sprocket (EXH) 9. Timing chain (secondary)
10. Camshaft sprocket (INT) 11. Slack guide 12. Crankshaft sprocket
13. Timing chain tensioner (primary) 14. Intake valve timing control cover 15. Collared O-ring
16. O-ring 17. Chain tensioner cover 18. Intake valve timing control cover
19. Water hose clamp 20. Idler pulley bracket 21. Idler pulley
22. Crankshaft pulley 23. Front oil seal 24. Idler pulley
25. A/C compressor bracket 26. Water pump cover 27. Bracket
28. Front timing chain case 29. Bracket 30. Rear timing chain case
31. O-ring 32. Tension guide 33. Water drain plug (front side)
SEM728G

ENGINE ASSEMBLY
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Revision: 2004 November 2004 FX35/FX45
Separation Work
1. Install engine slingers into front of right bank cylinder head and
rear of left bank cylinder head.
2. Remove power steering oil pump from engine side. Refer to PS-
31, "POWER STEERING OIL PUMP" .
3. Remove engine mounting insulator under side nut with power
tool.
4. Lift with hoist and separate engine and transmission assembly
from suspension member.
CAUTION:

Before and during this lifting, always check if any harnesses are left connected.

Avoid damage to and oil/grease smearing or spills onto engine mounting insulator.
5. Remove alternator. Refer to SC-23, "
CHARGING SYSTEM" .
6. Remove starter motor. Refer to SC-10, "
STARTING SYSTEM" .
7. Separate engine from transmission assembly. Refer to AT- 2 6 6 , "
TRANSMISSION ASSEMBLY" .
8. Remove engine mounting insulator and bracket with power tool.
INSTALLATION
Note to the following, and install in the reverse order of removal.

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 com-
ponent figure in EM-110, "
2WD MODEL" .

When installing engine mounting bracket on cylinder block,
tighten two upper bolts (shown as A in figure) first. Then tighten
two lower bolts (shown as B in figure). (LH and RH sides)

Tighten rear member mounting bolts in numerical order shown
in figure.
INSPECTION AFTER INSTALLATION

Before starting engine, check the levels of engine coolant, engine oil and working fluid. If less than
required quantity, fill to the specified level.

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 engine coolant, engine oil, working fluid,
fuel and exhaust gas.Slinger bolts:
: 28.0 N·m (2.9 kg-m, 21 ft-lb)
SBIA0474E
PBIC1134E
KBIA1019E

EM-118
[VQ35DE]
ENGINE ASSEMBLY
Revision: 2004 November 2004 FX35/FX45
5. Remove front drive shaft LH and RH sides. Refer to FAX-12, "FRONT DRIVE SHAFT" .
6. Remove alternator. Refer to SC-23, "
CHARGING SYSTEM" .
7. Remove starter motor. Refer to SC-10, "
STARTING SYSTEM" .
8. Remove front propeller shaft from front final drive assembly side. Refer to PR-4, "
FRONT PROPELLER
SHAFT" .
9. Separate engine from transmission assembly. Refer to AT- 2 6 6 , "
TRANSMISSION ASSEMBLY" .
10. Remove engine mounting insulator FR and engine mounting bracket with power tool.
11. Remove front final drive assembly from oil pan (upper). Refer to FFD-10, "
FRONT FINAL DRIVE ASSEM-
BLY" .
INSTALLATION
Note to the following, and install in the reverse order of removal.

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 com-
ponent figure in EM-115, "
AWD MODEL" .

When installing engine mounting bracket on cylinder block,
tighten two upper bolts (shown as A in figure) first. Then tighten
two lower bolts (shown as B in figure). (LH and RH sides)

Install engine mounting bracket (lower) paying attention to the
following.
–a. Temporarily tighten mounting bolts (shown as C, D and E in
figure).
–b. Tighten mounting bolts to the specified torque with following
mounting surfaces touched.
 Engine mounting bracket to engine mounting bracket (lower)
(shown as C and D in figure).
 Front final drive to engine mounting bracket (lower) (shown as E
in figure).
INSPECTION AFTER INSTALLATION

Before starting engine, check the levels of engine coolant, engine oil and working fluid. If less than
required quantity, fill to the specified level.

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 engine coolant, engine oil, working fluid,
fuel and exhaust gas.

Bleed air from passages in pipes and tubes of applicable lines, such as in cooling system.

After cooling down engine, again check amounts of engine coolant, engine oil and working fluid. Refill to
specified level, if necessary.

Summary of the inspection items:
SBIA0477E
SBIA0478E
Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Working fluid Level Leakage Level

SERVICE DATA AND SPECIFICATIONS (SDS)
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Revision: 2004 November 2004 FX35/FX45
DRIVE BELT
*: If belt tension gauge cannot be installed at check points shown, check drive belt tension at different location on the belt.
INTAKE MANIFOLD COLLECTOR, INTAKE MANIFOLD AND EXHAUST MANIFOLD
Unit: mm (in)
SPARK PLUG
ItemsDeflection adjustment Unit: mm (in) Tension adjustment* Unit: N (kg, lb)
Used belt
New beltUsed belt
New belt
Limit After adjustment Limit After adjustment
Alternator and
power steering
oil pump belt7 (0.28)4 - 5
(0.16 - 0.20)3.5 - 4.5
(0.138 - 0.177)294 (30, 66)730 - 818
(74.5 - 83.5,
164 - 184)838 - 926
(85.5 - 94.5,
188 - 208)
Air conditioner
compressor belt12 (0.47)9 - 10
(0.35 - 0.39)8 - 9
(0.31- 0.35)196 (20, 44)348 - 436
(35.5 - 44.5,
78 - 98)470 - 559
(4 8 - 5 7 ,
106 - 126)
Applied pushing
force98 N (10 kg, 22 lb) —
KBIA1731J
Items Limit
Surface distortionIntake manifold collector upper 0.1 (0.004)
Intake manifold collector lower 0.1 (0.004)
Intake manifold 0.1 (0.004)
Exhaust manifold 0.3 (0.012)
MakeNGK
Standard typePLFR5A-11
Hot typePLFR4A-11
Cold typePLFR6A-11
Gap (nominal)1.1 mm (0.043 in)

DRIVE BELTS
EM-169
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Revision: 2004 November 2004 FX35/FX45
DRIVE BELTSPFP:02117
Checking Drive BeltsABS006I7
WARNING:
Be sure to perform when engine is stopped.

Remove air duct (inlet) when inspecting drive belt for alternator, water pump and A/C compressor.

Remove front engine undercover with power tool when inspecting power steering oil pump belt.

Make sure that indicator (single line notch) of each auto tensioner is within the allowable working range
(between three line notches).
NOTE:

Check auto tensioner indication when engine is cold.

When new drive belt is installed, the range should be “A”.

The indicator notch is located on the moving side of auto tensioner for alternator, water pump and A/C
compressor belt, while it is found on the fixed side for power steering oil pump belt.

Visually check entire belt for wear, damage or cracks.

If the indicator is out of allowable working range or belt is damaged, replace belt.
Tension AdjustmentABS006I8
Belt tensioning is not necessary, as it is automatically adjusted by auto tensioner.
Removal and InstallationABS006I9
REMOVAL
Alternator, Water Pump and A/C Compressor Belt
1. Remove air duct (inlet). Refer to EM-172, "AIR CLEANER AND AIR DUCT" .
2. Front engine undercover with power tool.
3. With box wrench, and while securely holding the hexagonal part
in pulley center of auto tensioner, move wrench handle in the
direction of arrow (loosening direction of tensioner).
CAUTION:
Avoid placing hand in a location where pinching may occur
if the holding tool accidentally comes off.
4. Under the above condition, insert a metal 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.
PBIC2331E
PBIC1542E

EM-170
[VK45DE]
DRIVE BELTS
Revision: 2004 November 2004 FX35/FX45
5. Remove alternator, water pump and A/C compressor belt.
Power Steering Oil Pump Belt
1. Remove air duct (inlet). Refer to EM-172, "AIR CLEANER AND AIR DUCT" .
2. Front engine undercover with power tool
3. Remove alternator, water pump and A/C compressor belt. Refer to EM-169, "
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 metal 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 to 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-169, "
Checking Drive Belts" .
PBIC1543E