2007 INFINITI M35 check engine

OIL COOLER
LU-17
[VQ35DE]
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Revision: 2007 April2007 M35/M45
CAUTION:
Do not spill engine oil to rubber parts such as drive belts and engine mounting insulator.
6. Remove water pipes, as necessary.
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
Check relief valve with the following procedure.

Press steel ball of relief valve using a clean plastic stick. Make sure that valve moves smoothly and proper
spring repulsion is felt.

Replace relief valve, if necessary, with the following procedure.
–Remove the relief valve by prying using a screwdriver.
CAUTION:
Be careful not to damage the mounting hole.
–Press in the relief valve until it reaches a depth of 7 mm (0.28 in) from end surface of oil pan (upper) using
approximately 10 mm (0.39 in) diameter drift.
CAUTION:
Carefully press in the relief valve by aligning its mounting hole side with the axle center so as not
to cause deformation.
INSTALLATION
Note the following, and install in the reverse order of removal.

Make sure that no foreign objects are adhering to the installation planes of oil cooler, oil pan (upper) (2WD
models) or oil cooler bracket (AWD models).
2WD Models
Align cutout on oil cooler with protrusion on oil pan (upper) side, and
tighten connector bolt.
AW D M o de l s
Align cutout on oil cooler with protrusion on oil cooler bracket side, and tighten connector bolt.
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 CO-11, "ENGINE COOLANT" .
2. Start the engine, and check there is no leaks of engine oil or engine coolant.
SBIA0459E
1 : Connector bolt
A: Cut out
B: AWD
PBIC3391E

LU-18
[VQ35DE]
OIL COOLER
Revision: 2007 April2007 M35/M45
3. Stop the 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 CO-11,
"ENGINE COOLANT" .

OIL PUMP
LU-19
[VQ35DE]
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Revision: 2007 April2007 M35/M45
OIL PUMPPFP:15010
ComponentsNBS004Q3
Removal and InstallationNBS004Q4
REMOVAL
1. Remove oil pans (lower and upper) and oil strainer. Refer to EM-31, "OIL PAN AND OIL STRAINER" .
2. Remove front timing chain case and timing chain (primary). Refer to EM-66, "
TIMING CHAIN" .
3. Remove oil pump assembly.
INSTALLATION
CAUTION:
Before installation, apply new engine oil to the parts as instructed in the figure.
Note 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. Check the engine oil level. Refer to LU-7, "ENGINE OIL" .
2. Start the engine, and check there is no leaks of engine oil.
3. Stop the engine and wait for 10 minutes.
4. Check the engine oil level and adjust the level. Refer to LU-7, "
ENGINE OIL" .
Disassembly and AssemblyNBS004Q5
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

ENGINE OIL
LU-27
[VK45DE]
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Revision: 2007 April2007 M35/M45
ENGINE OILPFP:KLA92
InspectionNBS004QC
ENGINE OIL LEVEL
NOTE:
Before starting engine, put vehicle horizontally and check the engine oil level. If 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

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 the engine oil level. Refer to LU-27, "
ENGINE OIL LEVEL" .
2. Remove front engine undercover with power tool.
3. Disconnect harness connector at oil pressure switch, and
remove oil pressure switch using deep socket (commercial ser-
vice tool).
CAUTION:
Do not drop or shock oil pressure switch.
PBIC0801E
PBIC1524E

LU-28
[VK45DE]
ENGINE OIL
Revision: 2007 April2007 M35/M45
4. Install oil pressure gauge and hose (SST).
5. Start engine and warm it up to normal operating temperature.
6. Check the engine 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)]
Unit: kPa (kg/cm2 , psi)
If difference is extreme, check oil passage and oil pump for oil leaks.
7. After the inspections, install oil pressure switch as follows:
a. Remove old liquid gasket adhering to oil pressure switch and engine.
b. Apply liquid gasket and tighten oil pressure switch to the specification.
Use Genuine RTV Silicone Sealant or equivalent. Refer to GI-47, "
RECOMMENDED CHEMICAL
PRODUCTS AND SEALANTS" .
c. After warming up engine, make sure there is no leakage of engine oil with running engine.
Changing Engine OilNBS004QD
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. Warm up engine, put vehicle horizontally and check for engine oil leakage from engine components. Refer
to LU-27, "
ENGINE OIL LEAKAGE" .
2. Stop engine and wait for 15 minutes.
3. Loosen oil filler cap.
4. Remove mounting bolts, and then pull down the rear of front engine undercover and secure it using clip.
5. Remove drain plug and then drain engine oil.
SLC926
Engine speed Approximate discharge pressure
Idle speed More than 98 (1.0, 14)
2,000 rpm More than 294 (3.0, 43)
: 14.8 N·m (1.5 kg-m, 11 ft-lb)
PBIC0993E

ENGINE OIL
LU-29
[VK45DE]
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Revision: 2007 April2007 M35/M45
6. Install drain plug with new washer. Refer to EM-187, "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 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 oil leakage.
9. Stop engine and wait for 15 minutes.
10. Check the engine oil level. Refer to LU-27, "
ENGINE OIL LEVEL" . Oil pan drain plug:
: 34.3 N·m (3.5 kg-m, 25 ft-lb)
Drain and refillWith oil filter change 5.5 (5-3/4, 4-7/8)
Without oil filter change 4.9 (5-1/8, 4-1/4)
Dry engine (engine overhaul) 6.7 (7-1/8, 5-7/8)

LU-30
[VK45DE]
OIL FILTER
Revision: 2007 April2007 M35/M45
OIL FILTERPFP:15208
Removal and InstallationNBS004QE
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 new 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. Check the engine oil level. Refer to LU-27, "ENGINE OIL" .
2. Start engine, and check there is no leaks of engine oil.
3. Stop engine and wait for 15 minutes.
4. Check the engine oil level and adjust engine oil. Refer to LU-27, "
ENGINE OIL" .
PBIC1525E
SMA010
Oil filter:
:17.7 N·m (1.8 kg-m, 13 ft-lb)
SMA229B

LU-32
[VK45DE]
OIL PUMP
Revision: 2007 April2007 M35/M45
3. Install in the reverse order of removal after this step.
INSPECTION AFTER INSTALLATION
1. Check the engine oil level. Refer to LU-27, "ENGINE OIL" .
2. Start engine, and check there is no leak of engine oil.
3. Stop engine and wait for 15 minutes.
4. Check the engine oil level and adjust engine oil. Refer to LU-27, "
ENGINE OIL" .
Disassembly and AssemblyNBS004QH
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.
INSPECTION AFTER DISASSEMBLY
Oil Pump Clearance

Measure the 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)
–If out of the standard, replace inner rotor and outer rotor.

Measure the 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:
OIL PUMP INNER ROTOR OUTER DIAMETER
–Measure the outer diameter of protruded portion of oil pump
inner rotor with micrometer. (Position 5)Standard : 0.114 - 0.200 mm (0.0045 - 0.0079 in)
Standard : Below 0.180 mm (0.0071 in)
PBIC0139E
Standard : 0.030 - 0.070 mm (0.0012 - 0.0028 in)
Standard : 0.030 - 0.090 mm (0.0012 - 0.0035 in)
PBIC0140E
PBIC0141E