2004 INFINITI FX35 oil pressure

ENGINE OIL
LU-9
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
MA
LU
Revision: 2004 November 2004 FX35/FX45
Use Genuine RTV Silicone Sealant or equivalent. Refer to GI-48, "RECOMMENDED CHEMICAL
PRODUCTS AND SEALANTS" .
Changing Engine OilABS004SV
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, and check for engine oil leakage from engine components. Refer to LU-7, "
ENGINE OIL
LEAKAGE" .
3. Stop engine and wait for 10 minutes.
4. Remove drain plug and oil filler cap.
5. Drain engine oil.
6. Install drain plug with new washer. Refer to EM-30, "
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, lmp qt)
CAUTION:

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

Always use oil level gauge to determine the proper amount of engine oil in engine.
8. Warm up engine and check area around drain plug and oil filter for engine oil leakage.
9. Stop engine and wait for 10 minutes.
10. Check the engine oil level. Refer to LU-7, "
ENGINE OIL LEVEL" . Oil pressure switch:
: 14.8 N·m (1.5 kg-m, 11 ft-lb)
Oil pan drain plug:
: 34.3 N·m (3.5 kg-m, 25 ft-lb)
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)

LU-12
[VQ35DE]
OIL FILTER BRACKET (AWD)
Revision: 2004 November 2004 FX35/FX45
OIL FILTER BRACKET (AWD)PFP:15238
Removal and InstallationABS007ZS
REMOVAL
WARNING:
Be careful not to burn yourself, as engine oil may be hot.
1. Remove front engine undercover with power tool.
2. Using oil filter wrench [SST: KV10115801 (J-38956)], remove oil filter. Refer to LU-10, "
OIL FILTER" .
3. Remove oil cooler connector bolt, and then oil cooler.
4. Disconnect oil temperature sensor and oil pressure switch harness connector.
5. Remove oil filter bracket from oil pan (upper).
6. Remove oil temperature sensor and oil pressure switch from oil filter bracket.
INSTALLATION
Note to the following, and install in the reverse order of removal.

Install oil pressure switch and oil temperature sensor as follows:
–Remove old liquid gasket adhering to oil pressure switch and oil filter bracket.
–Apply liquid gasket and install oil pressure switch, and then oil temperature sensor with a new washer.
Use Genuine RTV Silicone Sealant or equivalent. Refer to GI-48, "
RECOMMENDED CHEMICAL
PRODUCTS AND SEALANTS" .

Align cutout on oil cooler with protrusion on oil filter bracket. Refer to LU-16, "INSTALLATION" .
INSPECTION AFTER INSTALLATION
1. Check the engine oil level and add engine oil. Refer to LU-7, "ENGINE OIL" .
1. Oil filter 2. Connector bolt 3. Oil cooler
4. O-ring 5. Relief valve 6. Oil filter bracket
7. Gasket 8. Oil pressure switch 9. Oil temperature sensor
10. Washer 11. Oil pan (upper)
SBIA0593E

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)

LU-22
[VK45DE]
PREPARATION
Revision: 2004 November 2004 FX35/FX45
PREPARATIONPFP:00002
Special Service ToolsABS006J0
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolsABS006J1
Tool number
(Kent-Moore No.)
Tool nameDescription
ST25051001
(J25695-1)
Oil pressure gaugeMeasuring oil pressure
Maximum measuring range:
2,452 kPa (25 kg/cm
2 , 356 psi)
ST25052000
(J25695-2)
HoseAdapting oil pressure gauge to cylinder block
KV10115801
(J38956)
Oil filter wrenchRemoving and installing oil filter
a: 64.3 (2.531 in)
WS39930000
(—)
Tube presserPressing the tube of liquid gasket
S-NT050
S-NT559
S-NT375
S-NT052
Tool nameDescription
Power toolLoosening bolts and nuts
Deep socketRemoving and installing oil pressure switch
a: 24 mm (0.94 in)
PBIC0190E
PBIC2072E

ENGINE OIL
LU-25
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
LU
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

LU-34
[VK45DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2004 November 2004 FX35/FX45
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitABS006J9
OIL PRESSURE
*: Engine oil temperature at 80°C (176°F)
ENGINE OIL CAPACITY (APPROXIMATE)
Unit: (US qt, Imp qt)
OIL PUMP
Unit: mm (in)
REGULATOR VALVE
Unit: mm (in) Engine speed
rpm Approximate discharge oil pressure*
kPa (kg/cm
2 , psi)
Idle speed
2,000More than 98 (1.0, 14)
More than 294 (3.0, 43)
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)
Oil pump body to oil pump outer rotor radial clearance 0.114 - 0.200 (0.0045 - 0.0079)
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 0.030 - 0.090 (0.0012 - 0.0035)
Oil pump inner rotor to oil pump body clearance 0.045 - 0.091 (0.0018 - 0.0036)
Regulator valve to oil pump body clearance 0.040 - 0.097 (0.0016 - 0.0038)

ENGINE MAINTENANCE (VQ35DE ENGINE)
MA-15
C
D
E
F
G
H
I
J
K
MA
B
MA
Revision: 2004 November 2004 FX35/FX45
ALTERNATOR AND POWER STEERING OIL PUMP BELT
1. Remove front engine undercover with power tool.
2. Loosen idler pulley lock nut (A) and adjust tension by turning
adjusting bolt (B).

For specified belt tension, refer to MA-14, "Checking Drive
Belts" .
3. Tighten nut (A).
AIR CONDITIONER COMPRESSOR BELT
1. Remove front engine undercover with power tool.
2. Loosen idler pulley lock nut (C) and adjust tension by turning adjusting bolt (D).

For specified belt tension, refer to MA-14, "Checking Drive Belts" .
3. Tighten nut (C).
Changing Engine CoolantALS000H2
WARNING:

To avoid being scalded, never change engine coolant when engine is hot.

Wrap a thick cloth around cap and carefully remove cap. First, turn cap a quarter of a turn to
release built-up pressure. Then turn cap all the way.
DRAINING ENGINE COOLANT
1. Remove front engine undercover with power tools.
2. Open radiator drain plug at the bottom of radiator, and remove
radiator cap.
CAUTION:
Be careful not to allow engine coolant to contact drive belts.
When drain all of engine coolant in the system, open water drain plugs on engine cylinder block.
Refer to EM-121, "
DISASSEMBLY" .
3. Check drained engine coolant for contaminants such as rust, corrosion or discoloration.
If contaminated, flush the engine cooling system. Refer to MA-17, "
FLUSHING COOLING SYSTEM" . : 34.8 N·m (3.5 kg-m, 26 ft-lb)
SBIA0532E
: 34.8 N·m (3.5 kg-m, 26 ft-lb)
SBIA0444E