Engine INFINITI FX35 2004 Service Manual

OIL COOLER
LU-15
[VQ35DE]
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Revision: 2004 November 2004 FX35/FX45
AWD MODEL
REMOVAL
WARNING:
Be careful not to burn yourself, as engine oil and engine coolant may be hot.
1. Remove front engine undercover with power tool.
2. Disconnect water hoses from oil cooler pinching water hoses near oil cooler to prevent engine coolant
from spilling out.

Remaining engine coolant in piping will come out. Use a tray to collect it.
CAUTION:
Do not spill engine coolant on drive belt.
3. Using oil filter wrench [SST: KV10115801 (J-38956)], remove oil filter. Refer to LU-10, "
OIL FILTER" .
4. Remove connector bolt, and remove oil cooler.
INSPECTION AFTER REMOVAL
Oil Cooler
Check oil cooler for cracks. Check oil cooler for clogging by blowing through engine coolant inlet. If necessary,
replace oil cooler.
Relief Valve
Inspect relief valve for movement, cracks and breaks by pushing ball. If replacement is necessary, remove
relief valve by prying it out with a suitable tool. Install a new relief valve in place by tapping it.
1. Oil filter 2. Connector bolt 3. Oil cooler
4. O-ring 5. Relief valve 6. Oil filter bracket
7. Water hose 8. Water hose 9. Water pipe
10. Water hose
SBIA0584E

LU-16
[VQ35DE]
OIL COOLER
Revision: 2004 November 2004 FX35/FX45
INSTALLATION
Note to the following, and install in the reverse order of removal.
2WD Model
Align cutout on oil cooler with protrusion on oil pan (upper).
AW D M od e l
Align cutout on oil cooler with protrusion on oil filter bracket.
INSPECTION AFTER INSTALLATION
1. Check the engine oil level and the engine coolant level and add engine oil and engine coolant. Refer to
LU-7, "
ENGINE OIL" and Refer to CO-11, "ENGINE COOLANT" .
2. Start engine, and check there is no leaks of engine oil or engine coolant.
3. Stop engine and wait for 10 minutes.
4. Check the engine oil level and the engine coolant level again. Refer to LU-7, "
ENGINE OIL" and Refer to
CO-11, "
ENGINE COOLANT" .
SBIA0459E
SBIA0460E

OIL PUMP
LU-17
[VQ35DE]
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Revision: 2004 November 2004 FX35/FX45
OIL PUMPPFP:15010
Removal and InstallationABS004SY
CAUTION:
Before installation, apply new engine oil to the parts as instructed in the figure.
REMOVAL
1. Remove oil pan (lower and upper) and oil strainer. Refer to EM-30, "OIL PAN AND OIL STRAINER" .
2. Remove front timing chain case and timing chain (primary). Refer to EM-63, "
TIMING CHAIN" .
3. Remove oil pump assembly.
INSTALLATION
Note to the following, and install in the reverse order of removal.

When installing, align crankshaft flat faces with oil pump inner rotor flat faces.
INSPECTION AFTER INSTALLATION
1. After warming up engine, check for engine oil leakage.
2. Check the engine oil level and add engine oil. Refer to LU-7, "
ENGINE OIL" .
Disassembly and AssemblyABS004SZ
DISASSEMBLY
1. Remove oil pump cover.
2. Remove oil pump inner rotor and oil pump outer rotor from oil pump body.
3. After removing regulator valve plug, remove regulator valve spring and regulator valve.
1. Oil pump body 2. Oil pump outer rotor 3. Oil pump inner rotor
4. Oil pump cover 5. Regulator valve plug 6. Regulator valve spring
7. Regulator valve
SBIA0481E

LU-18
[VQ35DE]
OIL PUMP
Revision: 2004 November 2004 FX35/FX45
INSPECTION AFTER DISASSEMBLY
Oil Pump Clearance

Measure clearance with feeler gauge.
Clearance between oil pump outer rotor and oil pump body
(position “1”)
Tip clearance between oil pump inner rotor and oil pump outer
rotor (position “2”)

Measure clearance with feeler gauge and straightedge.
Side clearance between oil pump inner rotor and oil pump body
(position “3”)
Side clearance between oil pump outer rotor and oil pump body
(position “4”)
Calculate the clearance between oil pump inner rotor and oil pump
body as follows.

Measure the inner diameter of oil pump body with inside
micrometer (Position “5”)

Measure the outer diameter of protruded portion of oil pump
inner rotor (Position “6”)

(Clearance) = (Inner diameter of oil pump body) – (Outer diame-
ter of oil pump inner rotor)
Regulator Valve Clearance
(Clearance) = (Regulator valve hole diameter) – (Outer diameter of
regulator valve)
CAUTION:

Coat regulator valve with new engine oil.

Make sure it falls smoothly into the regulator valve hole by
its own weight.Standard : 0.114 - 0.260 mm (0.0045 - 0.0102 in)
Standard : Below 0.180 mm (0.0071in)
SLC932A
Standard : 0.030 - 0.070 mm (0.0012 - 0.0028 in)
Standard : 0.050 - 0.110 mm (0.0020 - 0.0043 in)
SLC933A
Standard : 0.045 - 0.091 mm (0.0018 - 0.0036 in)
SBIA0461E
Standard : 0.040 - 0.097 mm (0.0016 - 0.0038 in)
PBIC0822E

LU-20
[VQ35DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2004 November 2004 FX35/FX45
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitABS004T0
ENGINE OIL PRESSURE
OIL PUMP
Unit: mm (in)
REGULATOR VALVE
Unit: mm (in)
ENGINE OIL CAPACITY (APPROXIMATE)
Unit: (US qt, lmp qt) Engine speed (rpm)
Approximate discharge pressure [kPa (kg/cm
2 , psi)]
Idle speed More than 98 (1.0, 14)
2,000 More than 294 (3.0, 43)
Oil pump body to oil pump outer rotor radial clearance 0.114 - 0.260 (0.0045 - 0.0102)
Oil pump inner rotor to oil pump outer rotor tip clearance Below 0.180 (0.0071)
Oil pump body to oil pump inner rotor axial clearance 0.030 - 0.070 (0.0012 - 0.0028)
Oil pump body to oil pump outer rotor axial clearance 0.050 - 0.110 (0.0020 - 0.0043)
Oil pump inner rotor to brazed portion of housing clearance 0.045 - 0.091 (0.0018 - 0.0036)
Regulator valve to oil pump cover clearance 0.040 - 0.097 (0.0016 - 0.0038)
Drain and refill With oil filter change 4.7 (5, 4-1/8)
Without oil filter change 4.4 (4-5/8, 3-7/8)
Dry engine (Overhaul)5.4 (5-3/4, 4-3/4)

PRECAUTIONS
LU-21
[VK45DE]
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Revision: 2004 November 2004 FX35/FX45
[VK45DE]PRECAUTIONSPFP:00001
Precautions for Liquid GasketABS006IZ
LIQUID GASKET APPLICATION PROCEDURE
1. Remove old liquid gasket adhering to the liquid gasket application surface and the mating surface.

Remove liquid gasket completely from the liquid gasket application surface, mounting bolts, and bolt
holes.
2. Wipe the liquid gasket application surface and the mating surface with white gasoline (lighting and heating
use) to remove adhering moisture, grease and foreign materials.
3. Attach liquid gasket tube to tube presser [SST: WS39930000
(—)].
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .

Within five minutes of liquid gasket application, install the mat-
ing component.

If liquid gasket protrudes, wipe it off immediately.

Do not retighten mounting bolts or nuts after the installation.

After 30 minutes or more have passed from the installation, fill
engine oil and engine coolant.EMA0622D

ENGINE OIL
LU-25
[VK45DE]
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Revision: 2004 November 2004 FX35/FX45
ENGINE OILPFP:KLA92
InspectionABS006J4
ENGINE OIL LEVEL
NOTE:
Before starting engine, put vehicle horizontally and check the engine oil level. If the engine is already started,
stop it and allow 15 minutes before checking.
1. Pull out oil level gauge and wipe it clean.
2. Insert oil level gauge and make sure the engine oil level is within
the range shown in the figure.
3. If it is out of range, adjust it.
ENGINE OIL APPEARANCE

Check engine oil for white turbidity or heavy contamination.

If engine oil becomes turbid and white, it is highly probable that it is contaminated with engine coolant.
Repair or replace damaged parts.
ENGINE OIL LEAKAGE
Check for oil leakage around the following area.

Oil pan

Oil pan drain plug

Oil pressure switch

Oil filter

Oil cooler

Intake valve timing control cover

Intake valve timing control solenoid valve

Front cover

Chain tensioner cover

Mating surface between cylinder block and cylinder head

Mating surface between cylinder head and rocker cover

Crankshaft oil seals (front and rear)
OIL PRESSURE CHECK
WARNING:

Be careful not to burn yourself, as engine oil may be hot.

Oil pressure check should be done in “Parking position”.
1. Check engine oil level. Refer to LU-25, "
ENGINE OIL LEVEL" .
2. Remove front engine undercover with power tool.
PBIC0801E

LU-26
[VK45DE]
ENGINE OIL
Revision: 2004 November 2004 FX35/FX45
3. Disconnect oil pressure switch harness connector.
4. Remove oil pressure switch.
5. Install oil pressure gauge and hose (SST).
6. Start engine and warm it up to normal operating temperature.
7. Check oil pressure with engine running under no-load.
NOTE:
When engine oil temperature is low, engine oil pressure becomes high.
Engine oil pressure [Engine oil temperature at 80°C (176°F)]
If difference is extreme, check oil passage and oil pump for oil leaks.
8. After the inspections, install oil pressure switch as follows:
a. Remove old liquid gasket adhering to oil presser switch and engine.
b. Apply liquid gasket and tighten oil pressure switch to specification.
Use Genuine Thread Sealant or equivalent. Refer to GI-48, "
RECOMMENDED CHEMICAL PROD-
UCTS AND SEALANTS" .
Changing Engine OilABS006J5
WARNING:

Be careful not to burn yourself, as engine oil may be hot.

Prolonged and repeated contact with used engine oil may
cause skin cancer; try to avoid direct skin contact with
used engine oil. If skin contact is made, wash thoroughly
with soap or hand cleaner as soon as possible.
1. Remove front engine undercover with power tool.
2. Warm up engine, put vehicle horizontally and check for oil leak-
age from engine components. Refer to LU-25, "
ENGINE OIL
LEAKAGE" .
3. Stop engine and wait for 15 minutes.
4. Loosen oil filler cap, and then remove drain plug.
PBIC1524E
SLC926
Engine speed
rpm Approximate discharge pressure
kPa (kg/cm2 , psi)
Idle speed More than 98 (1.0, 14)
2,000 More than 294 (3.0, 43)
: 14.8 N·m (1.5 kg-m, 11 ft-lb)
PBIC0993E

ENGINE OIL
LU-27
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Revision: 2004 November 2004 FX35/FX45
5. Drain engine oil.
6. Install drain plug with new washer. Refer to EM-181, "
OIL PAN AND OIL STRAINER" .
CAUTION:
Be sure to clean drain plug and install with new washer.
7. Refill with new engine oil.
Engine oil specification and viscosity:
Refer to MA-12, "
RECOMMENDED FLUIDS AND LUBRICANTS" .
Engine oil capacity (Approximate):
Unit: (US qt, Imp qt)
CAUTION:

The refill capacity depends on the engine oil temperature and drain time. Use these specifica-
tions for reference only.

Always use the oil level gauge to determine when the proper amount of engine oil is in the
engine.
8. Warm up engine and check area around drain plug and oil filter for oil leakage.
9. Stop engine and wait for 15 minutes.
10. Check the engine oil level. Refer to LU-25, "
ENGINE OIL LEVEL" . Oil pan drain plug:
: 34.3 N·m (3.5 kg-m, 25 ft-lb)
Drain and refillWith oil filter change 6.4 (6-3/4, 5-5/8)
without oil filter change 5.8 (6-1/8, 5-1/8)
Dry engine (engine overhaul) 7.2 (7-5/8, 6-3/8)

LU-28
[VK45DE]
OIL FILTER
Revision: 2004 November 2004 FX35/FX45
OIL FILTERPFP:15208
Removal and InstallationABS006J6
REMOVAL
1. Remove front engine undercover with power tool.
2. Using the oil filter wrench (SST), remove the oil filter.
CAUTION:

Oil filter is provided with relief valve.
Use Genuine Nissan Oil Filter or equivalent.

Be careful not to get burned when engine and engine oil
may be hot.

When removing, prepare a shop cloth to absorb any
engine oil leakage or spillage.

Do not allow engine oil to adhere to drive belts.

Completely wipe off any engine oil that adhere to engine
and vehicle.
INSTALLATION
1. Remove foreign materials adhering to oil filter installation surface.
2. Apply engine oil to the oil seal circumference of the new oil filter.
3. Screw oil filter manually until it touches the installation surface,
then tighten it by 2/3 turn. Or tighten to specification.
INSPECTION AFTER INSTALLATION
1. After warming up engine, check for engine oil leakage.
2. Stop engine and wait for 15 minutes.
3. Check the engine oil level and add engine oil. Refer to LU-25, "
ENGINE OIL" .
PBIC1525E
SMA010
Oil filter:
:17.7 N·m (1.8 kg-m, 13 ft-lb)
SMA229B