2005 INFINITI FX35 steering

EM-174
[VK45DE]
DRIVE BELTS
Revision: 2005 July 2005 FX
3. Under the above condition, insert a metallic 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 tensioner pulley arm.

Leave auto tensioner pulley arm locked until belt is installed again.
4. Remove alternator, water pump and A/C compressor belt.
Power Steering Oil Pump Belt
1. Remove air duct (inlet). Refer to EM-176, "AIR CLEANER AND AIR DUCT" .
2. Remove front engine undercover with power tool
3. Remove alternator, water pump and A/C compressor belt. Refer to EM-173, "
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 metallic 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 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-173, "
Checking Drive Belts" .
PBIC1543E

DRIVE BELTS EM-175
[VK45DE]
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ComponentsABS00DFM
CAUTION:
The complete drive belt auto–tensioner must be replaced as a unit, including the pulley.
Drive Belt Auto Tensioner and Idler PulleyABS006IA
REMOVAL
1. Remove air duct (inlet). Refer to EM-176, "AIR CLEANER AND AIR DUCT" .
2. Remove front engine undercover with power tool.
3. Remove drive belts. Refer to EM-173, "
Removal and Installation" .

Keep auto tensioner pulley arm locked after belt is removed.
4. Remove auto tensioner and idler pulley with power tool.

Keep auto tensioner pulley arm locked to install or remove auto tensioner.
CAUTION:
Do not loosen the hexagonal part in center of drive belt auto–tensioner pulley (Do not turn it clock-
wise). If turned clockwise, the complete drive belt auto–tensioner must be replaced as a unit,
including the pulley.
INSTALLATION
Install in the reverse order of removal.
CAUTION:
Do not swap the pulley between new and old drive belt auto–tensioner.
1. Auto tensioner ( Used for alternator,
water pump and A/C compressor) 2. Idler pulley 3. Auto tensioner (Used for power
steering oil pump belt)
PBIC2788E

EXHAUST MANIFOLD AND THREE WAY CATALYST EM-183
[VK45DE]
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b. Remove heated oxygen sensor 1 and 2 on both bank with
heated oxygen sensor wrench (SST).

Put marks to identify installation positions of each heated oxy-
gen sensor.
CAUTION:

Be careful not to damage heated oxygen sensor.

Discard any heated oxygen sensor which has been
dropped from a height of more than 0.5 m (19.7 in) onto a
hard surface such as a concrete floor; replace with a new
one.
9. Remove exhaust mounting bracket between three way catalysts (right and left bank) and transmission. Refer to EX-3, "
EXHAUST SYSTEM" .
10. Disconnect A/C piping from A/C compressor, then remove A/C compressor with power tool. Refer to AT C -
140, "Components" .
11. Remove alternator and bracket. Refer to SC-23, "
CHARGING SYSTEM" .
12. Remove exhaust front tube with power tool. Refer to EX-3, "
EXHAUST SYSTEM" .
13. Remove steering lower joint at power steering gear assembly side, and release steering lower shaft. Refer to PS-19, "
POWER STEERING GEAR AND LINKAGE" .
14. Remove three way catalysts (right and left bank).
15. Remove exhaust manifold covers. (right and left bank)
16. Loosen mounting nuts in reverse order as shown in the figure to remove exhaust manifold.
NOTE:
Disregard the numerical order No. 9 to 12 in removal.
17. Remove exhaust manifold gaskets. CAUTION:
Cover engine openings to avoid entry of foreign materials.
PBIC2333E
PBIC2334E
PBIC1549E

EM-186
[VK45DE]
OIL PAN AND OIL STRAINER
Revision: 2005 July 2005 FX

Do not spill engine coolant on drive belts.
7. Remove drive belts. Refer to EM-173, "
DRIVE BELTS" .
8. Remove auto tensioner of power steering oil pump belt. Refer to EM-175, "
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-31, "
POWER STEERING OIL PUMP" .
10. Remove A/C compressor with piping connected, and temporarily secure it aside with ropes or equivalent. Refer to ATC-140, "
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-240, "
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-12, "
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 7 3 , "
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.
d. Insert seal cutter (SST) between oil pan and cylinder block. Slide seal cutter by tapping on the side of seal cutter with ham-
mer. Remove oil pan.
CAUTION:

Be careful not to damage the mating surfaces.

Do not insert screwdriver, this will damage the mating
surface.
e. Remove O-rings from bottom of oil pump and front cover.
20. As necessary, pull axle pipe from oil pan.

Hold pipes and pull them out to front drive shaft (left) installing side.
21. Remove oil strainer.
PBIC0194E
SEM365E

TIMING CHAIN EM-203
[VK45DE]
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a. Remove rear plate cover, and set ring gear stopper (SST).
b. Loosen crankshaft pulley bolt, and then pull crankshaft pulley with both hands to remove it.
CAUTION:

Do not remove crankshaft pulley bolt. Keep loosened
crankshaft pulley bolt in place to protect removed crank-
shaft pulley from dropping.

Do not remove balance weight (inner hexagon bolt) at the
front of crankshaft pulley.
9. Remove oil pan and oil strainer. Refer to EM-185, "
OIL PAN AND OIL STRAINER" .
10. Remove front cover as follows:
a. Loosen mounting bolts in reverse order as shown in the figure.
b . 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 ) ] t o c u t l i q u i d g a s k e t for removal.
CAUTION:

Exercise care not to damage mating surfaces.

After removal, handle front cover carefully so it does not
tilt, cant, or warp under a load.
11. Remove front oil seal from front cover using suitable tool.

Use screwdriver for removal.
CAUTION:
Be careful not to damage front cover.
12. Remove O-rings from cylinder heads (right and left bank) and cylinder block.
13. Remove chain tensioner cover from front cover.

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 ) ] t o c u t l i q u i d g a s k e t f o r r e m o v e .
14. Remove oil pump drive spacer.

Set bolts in the two bolt holes [M6 × pitch 1.0 mm (0.04 in)] on
front surface. Using suitable puller, pull oil pump drive spacer
off from crankshaft.
NOTE:
The dimension between the centers of the two bolt holes is 33
mm (1.30 in).
In the figure, a commercial steering puller is used.
15. Remove oil pump. Refer to LU-31, "
OIL PUMP" .
16. Remove chain tensioner (left bank) as follows:
PBIC1656E
KBIA0354J
SBIA0373E
PBIC2342E

TIMING CHAIN EM-211
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f. Further tighten by 90 degrees. (Angle tightening)

Check the tightening angle by referencing to the notches. The
angle between two notches is 90 degrees.
15. Rotate crankshaft pulley in normal direction (clockwise when viewed from engine front) to confirm it turns smoothly.
16. Install in the reverse order of removal after this step. NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in guide may gen-
erate a pounding noise during and just after engine start. However, this does not indicate an unusualness.
Noise will stop after hydraulic pressure rises.
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.

Bleed air from lines and hoses of applicable lines, such as in cooling system.

After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
* Transmission/transaxle/CVT fluid. power steering fluid, brake fluid, etc.
PBIC2346E
Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —

ENGINE ASSEMBLY EM-241
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Preparation
1. Release fuel pressure. Refer to EC-789, "FUEL PRESSURE RELEASE" .
2. Drain engine coolant from radiator. Refer to CO-37, "
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-172, "ENGINE ROOM COVER" .

Front and rear engine undercover

Air duct (inlet), air duct and air cleaner case assembly; Refer to EM-176, "AIR CLEANER AND AIR
DUCT" .

Drive belts; Refer to EM-173, "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-138, "
REFRIGERANT LINES" .
6. Remove A/C piping from A/C compressor, and temporarily fasten it on vehicle with a rope. Refer to AT C -
140, "Components" .
Engine Room RH
1. Disconnect fuel feed hose and EVAP hose. Refer to EM-192, "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-33, "
Removal and Installation (VK45DE Models)" .
3. Remove A/T fluid cooler tube. Refer to AT- 2 7 0 , "
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 3 3 , "
SHIFT CONTROL SYSTEM" .

EM-242
[VK45DE]
ENGINE ASSEMBLY
Revision: 2005 July 2005 FX
8. Remove rear plate cover from oil pan. Then remove bolts fixing drive plate to torque converter. Refer to
EM-185, "
OIL PAN AND OIL STRAINER" and AT- 2 7 0 , "TRANSMISSION ASSEMBLY" .
9. Remove transmission joint bolts which pierce at oil pan lower rear side. Refer to AT- 2 7 0 , "
TRANSMIS-
SION ASSEMBLY" .
10. Disconnect steering lower joint at power steering gear assembly side, and release steering lower shaft. Refer to PS-12, "
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-182, "
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