NISSAN X-TRAIL 2003 Electronic Repair Manual

LUBRICATION SYSTEM
LU-5
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LUBRICATION SYSTEMPFP:15010
Lubrication CircuitEBS009SS
PBIC0522E

LU-6
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LUBRICATION SYSTEM
System Drawing
EBS009ST
PBIC0523E

ENGINE OIL
LU-7
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ENGINE OILPFP:KLA92
InspectionEBS009SU
OIL LEVEL AND MUDDINESS
lBefore starting the engine, check the oil level. If the engine is
already started, stop it and allow 10 minutes before checking.
lCheck that the oil level is within the range shown in the figure.
lIf it is out of range, adjust it.
lCheck the oil for white turbidity or remarkable contamination.
lIf the oil becomes turbid and white, it is highly probable that it is
contaminated with coolant. Find the cause and repair.
OIL LEAKAGE
Check for oil leakage around the following area.
lOil pan
lOil pan drain plug
lOil pressure switch
lOil filter
lIntake valve timing control cover
lFront cover
lMating surface between cylinder block and cylinder head
lMating surface between cylinder head and rocker cover
lCrankshaft oil seal.
OIL PRESSURE CHECK
WA RN ING:
lBe careful not to burn yourself, as the engine oil is hot.
lOil pressure check should be done in “ Parking position”.
1. Check the oil level.
2. Remove the under cover.
3. Remove the oil pressure switch to connect the oil pressure
gauge.
4. After warming up the engine, check that oil pressure corre-
sponding to the engine speed is produced.
Engine oil pressure [Oil temperature is 80°C (176°F)]
5. After checking, install the oil pressure switch as follows.
a. Remove old sealant adhering to the switch and engine.
b. Apply thread sealant.
Use Genuine Liquid Gasket or equivalent.
PBIC0249E
KBIA0275E
Engine speed (rpm) Idle speed 2,000 6,000
Engine pressure
kPa (bar.kg/cm
2,psi)Approx. 98 (0.98, 1.0, 14) or more Approx. 294 (2.9, 3.0, 43) or more Approx. 392 (3.9, 4.0, 57) or more
: 12.3 - 17.2 N·m (1.25 - 1.75 kg-m, 10 - 12 ft-lb)

LU-8
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ENGINE OIL
Changing Engine Oil
EBS009SV
WAR NIN G:
lBe careful not to burn yourself, as the engine oil is hot.
lProlonged and repeated contact with used engine oil may
cause skin cancer: try to avoid direct skin contact with
used oil. If skin contact is made, wash thoroughly with soap
or hand cleaner as soon as possible.
1. Warm up engine, and check for oil leakage from engine compo-
nents.
2. Stop engine and wait for 10 minutes.
3. Remove drain plug and oil filler cap.
4. Drain oil and refill with new engine oil.
Oil specification and viscosity:
lAPI grade SG, SH or SJ.
lILSAC grade GF-I or GF-II
lRefer toMA-17, "RECOMMENDED FLUIDS AND LUBRICANTS".
Oil capacity (Approximate):
CAUTION:
lBe sure to clean drain plug and install with new washer.
lThe refill capacity depends on the oil temperature and drain time. Use these specifications for ref-
erence only.
Always use the dipstick to the determine when the proper amount of oil is in the engine.
5. Warm up engine and check area around drain plug and oil filter for oil leakage.
6. Stop engine and wait for 10 minutes.
7. Check oil level.
Drain and refillWith oil filter change
3.9 (3-3/8 Imp qt)
Without oil filter change
3.5 (3-1/8 Imp qt)
Dry engine (engine overhaul)
4.5 (4 Imp qt)
Oil pan drain plug:
: 29.4 - 39.2 N·m (3.0 - 4.0 kg-m, 22 - 28 ft-lb)
PBIC0250E

OIL FILTER
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OIL FILTERPFP:15208
Removal and InstallationEBS009SW
REMOVAL
1. Open the oil filter installation/removal cover on the under cover.
2. Using an oil filter wrench, remove the oil filter.
CAUTION:
lBe careful not to get burned when the engine and engine oil
are hot.
lWhen removing, prepare a shop cloth to absorb any oil
leakage or spillage.
lDo not allow engine oil to adhere to the drive belts.
lCompletely wipe off any oil that adhere to the engine and
the vehicle.
INSTALLATION
1. Remove foreign materials adhering to the oil filter installation surface.
2. Apply engine oil to the oil seal circumference of the new oil filter.
3. Screw the oil filter manually until it touches the installation sur-
face, then tighten it by 2/3 turn.
4. After warming up the engine, check for engine oil leakage.
5. Check oil level and add engine oil. Refer toLU-7, "
ENGINE OIL"
KBIA0303E
SMA010
Oil filter:
:14.7 - 20.5 N·m (1.5 - 2.1 Kg-m, 11 - 15 ft-lb)
SMA229B
ALC094

LU-10
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OIL PUMP
OIL PUMP
PFP:15010
Removal and InstallationEBS009SX
lRemove front cover. Refer to Timing ChainEM-43, "TIMING CHAIN".
Disassembly and AssemblyEBS009SY
CAUTION:
Before installation, apply new engine oil to the parts as instructed in the figure.
DISASSEMBLY
1. Remove oil pump cover.
2. Remove inner rotor and outer rotor from front cover.
3. After removing regulator plug, remove regulator spring and regulator valve.
INSPECTION AFTER DISASSEMBLY
Clearance of oil Pump Parts
lMeasure clearance with feeler gauge.
Clearance between outer rotor and oil pump body (position 1)
Tip clearance between inner rotor and outer rotor (position 2)
KBIA0153E
1 Front cover 2 Outer rotor 3 Inner rotor
4 Oil pump cover 5 Regulator valve 6 Spring
7 Regulator plug
Standard : 0.114 - 0.179mm (0.0045 - 0.0070 in)
Standard : Below 0.220 mm (0.0087in)
PBIC0251E

OIL PUMP
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lMeasure clearance with feeler gauge and straightedge.
Side clearance between inner rotor and oil pump body (position
3).
Side clearance between outer rotor and oil pump body (position
4).
lCalculate the clearance between inner rotor and oil pump body
as follows.
1. Measure the outer diameter of protruded portion of inner rotor
(Position 5).
2. Measure the inner diameter of oil pump body with inside
micrometer (Position 6).
(Clearance) = (Inner diameter of oil pump body) – (Outer diame-
ter of inner rotor)
Regular Valve Clearance
(Clearance) = D1(Valve hole diameter) – D2 (Outer diameter of
valve)
CAUTION:
lCoat regulator valve with engine oil.
lCheck that it falls smoothly into the valve hole by its own
weight.Standard : 0.030 - 0.070 mm (0.0012 - 0.0028 in)
Standard : 0.060 - 0.110 mm (0.0024 - 0.0043 in)
PBIC0252E
PBIC0253E
Standard : 0.035 - 0.070mm (0.0014 - 0.0028 in)
PBIC0254E
Standard : 0.040 - 0.097 mm (0.0016 - 0.0038 in)
KBIA0043E

LU-12
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OIL PUMP
ASSEMBLY
lAssemble in the reverse order of disassembly.
lInstall the inner rotor and outer rotor with the punched marks on
the oil pump cover side.
PBIC0255E

OIL COOLER
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OIL COOLERPFP:21305
Removal and InstallationEBS009SZ
WA RN ING:
lBe careful not to get burned when the engine and engine oil are hot.
CAUTION:
lWhen removing oil cooler, prepare a shop cloth to absorb any oil leakage or spillage.
lCompletely wipe off any oil that adhere to the engine and the vehicle.
REMOVAL
1. Remove front RH wheel and engine room right side cover.
2. Drain coolant by removing cylinder block drain plug and radiator drain cock. Refer toCO-9, "
DRAINING
ENGINE COOLANT".
3. Paint a mating mark at the oil cooler and oil cooler bracket.
INSPECTION
Oil Cooler
lCheck oil cooler for cracks. Check oil cooler for clogging by blowing through coolant inlet. If necessary,
replace oil cooler assembly.
Oil Pressure Relief Valve
lInspect oil pressure relief valve for movement, cracks and breaks by pushing the ball. If replacement is
necessary, remove valve by prying it out with a suitable tool. Install a new valve in place by tapping it.
INSTALLATION
Installation is in the reverse order of removal.
PBIC0278E
1 Oil pressure switch 2 Oil cooler bracket 3 Oil cooler
4Gasket

LU-14
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
PFP:00030
Standard and LimitEBS00BLZ
OIL PRESSURE
OIL PUMP
Unit: mm (in)
REGULATOR VALVE
Unit: mm (in)
OIL CAPACITY
Unit: · (Imp qt)
TIGHTENING TORQUE
Unit: N·m (kg-m, ft-lb) N·m(kg-m, in-lb)* Engine speed rpm
Approximate discharge pressure kPa (bar, kg/cm
2,psi)
Idle speed
2,000
6,000More than 98 (0.98, 1.0, 14)
294 (2.9, 3.0, 43)
392 (3.9, 4.0, 57)
Body to outer rotor radial clearance 0.114 - 0.179 (0.0045 - 0.0070)
Inner rotor to outer rotor tip clearance Below 0.220 (0.0087)
Body to inner rotor axial clearance 0.030 - 0.070 (0.0012 - 0.0028)
Body to outer rotor axial clearance 0.060 - 0.110 (0.0024 - 0.0043)
Inner rotor to brazed portion of housing clearance 0.035 - 0.070 (0.0014 - 0.0028)
Regulator valve to oil pump cover clearance 0.040 - 0.097 (0.0016 - 0.0038)
With oil filter change Approximately 3.9 (3-3/8)
Without oil filter change Approximately 3.5 (3-1/8)
Dry engine (engine overhaul) Approximately 4.5 (4)
Oil pressure switch 12.3 - 17.2 (1.25 - 1.75, 9 - 12)
Oil pan drain plug 29.4 - 39.2 (3.0 - 4.0, 22 - 28)
Oil pump assembly 6.4 - 7.5 (0.66 - 0.76, 57 - 66)*
Oil pump cover 5.9 - 7.9 (0.60 - 0.81, 52 - 70)*
Regulator plug 39.2 - 68.6 (4.0 - 7.0, 29 - 50)