NISSAN X-TRAIL 2003 Electronic Repair Manual

PRECAUTIONS
LU-15
[YD22DDTi]
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[YD22DDTi]PRECAUTIONSPFP:00001
Precautions For Liquid GasketEBS00B00
REMOVAL OF LIQUID GASKET SEALING
lAfter removing the mounting bolts and nuts, disconnect and
remove the liquid gasket sealing using a seal cutter.
CAUTION:
Be careful not to damage the mating surfaces.
lIn areas where the cutter is difficult to use, use a plastic hammer
to lightly tap the areas where the liquid gasket is applied.
CAUTION:
If for some unavoidable reason a tool such as a flat-bladed
screwdriver is used, be careful not to damage the mating sur-
faces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using a scraper, remove the old liquid gasket adhering to the
gasket application surface and the mating surface.
lRemove the liquid gasket completely from the groove of the gas-
ket application surface, mounting bolts, and bolt holes.
2. Wipe the gasket application surface and the mating surface with
white gasoline (lighting and heating use) to remove adhering
moisture, grease and foreign materials.
3. Attach the liquid gasket to the tube presser.
Use Genuine Liquid Gasket or equivalent.
4. Apply the gasket without breaks to the specified location with the
specified dimensions.
lIf there is a groove for the liquid gasket application, apply the
gasket to the groove.
lAs for the bolt holes, normally apply the gasket inside the holes.
Occasionally, it should be applied outside the holes. Make sure
to read the text of service manual.
lWithin five minutes of gasket application, install the mating com-
ponent.
lIf the liquid gasket protrudes, wipe it off immediately.
lDo not retighten after the installation.
lAfter 30 minutes or more have passed from the installation, fill
the engine oil and coolant.
CAUTION:
If there are specific instructions in the service manual, observe
them.
PBIC0275E
PBIC0003E
EMA0622D
SEM159F

LU-16
[YD22DDTi]
PREPARATION
PREPARATION
PFP:00002
Special Service ToolsEBS00B01
Tool number
Tool nameDescription
ST25051001
Oil pressure gaugeMeasuring oil pressure
Maximum measuring range:
2,452 kPa (25 kg/cm2, 356 psi)
ST25052000
HoseAdapting oil pressure gauge to cylinder block
WS39930000
Tube presserPressing the tube of liquid gasket
S-NT050
S-NT559
S-NT052

LUBRICATION SYSTEM
LU-17
[YD22DDTi]
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LUBRICATION SYSTEMPFP:15010
Lubrication CircuitEBS00B02
JLC421B

LU-18
[YD22DDTi]
ENGINE OIL
ENGINE OIL
PFP:KLA92
InspectionEBS00B03
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 bracket
lVacuum pump
lCylinder head rear cover assembly
lChain case
lOil pump housing
lMating surface between cylinder block and cylinder head
lMating surface between cylinder head and rocker cover
lOil cooler.
lCrankshaft oil seal
OIL PRESSURE CHECK
WAR NIN G:
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.
SBIA0122E
SBIA0123E
Engine speed (rpm) Idle speed 2,000 4,000
Engine pressure
kPa (bar, kg/cm
2,psi)Approx. 140 (1.40, 1.43, 20.3) or
moreApprox. 270 (2.69, 2.75, 39.1) or
moreApprox. 430 (4.29, 4.38, 62.3) or
more

ENGINE OIL
LU-19
[YD22DDTi]
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LUChanging Engine OilEBS00B04
WA RN ING:
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 CF-4.
lRefer toMA-17, "RECOMMENDED FLUIDS AND LUBRI-
CANTS".
Oil capcity (Approximate):
lThe refill capacity depends on the oil temperature and drain time. Use these specifications for reference
only.
Always use the dipstick to the determine when the proper amount of oil is in the engine.
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.Oil pressure switch:
: 12.3 - 17.2 N·m (1.3 - 1.7 kg-m, 9 - 12 ft-lb)
PBIC0527E
Drain and refillWith oil filter change
5.2 (4-5/8 Imp qt)
Without oil filter change
4.9 (4-3/8 Imp qt)
Dry engine (engine overhaul)6.3 (5-1/2 Imp qt)
Oil pan drain plug:
:29-39N·m(3.0-4.0kg-m,22-29ft-lb)
SBIA0122E

LU-20
[YD22DDTi]
OIL FILTER
OIL FILTER
PFP:15208
Removal and InstallationEBS00B05
REMOVAL
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.
1. Using a socket wrench [plane-to-plane width: 17 mm (0.67 in)],
loosen the filter body approximately four turns.
2. Drain the oil after matching the "DRAIN" arrow mark at the bot-
tom of the filter body to the protrusion on the oil filter bracket.
lCatch the oil with a pan or cloth.
CAUTION:
lThe drained oil flows over the right surface of the filter
body.
lCompletely wipe clean any engine oil remaining on the
filter body or vehicle.
3. Remove the filter body, then remove the oil filter element.
JLC289B
JLC290B
JLC291B

OIL FILTER
LU-21
[YD22DDTi]
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4. Remove the O-ring from the filter body.
lPush the O-ring in one direction, lift the slack part using fin-
gers, and remove the O-ring from the filter body.
CAUTION:
Do not use wires or flat-bladed screwdrivers etc. as they
may cause damage to the filter body.
INSTALLATION
1. Completely remove all foreign objects adhering to the inside of the filter body or O-ring mounting area
(body side and bracket side).
2. Install the oil filter element and O-ring to the filter body.
lPush the oil filter element into the filter body completely.
3. Install the filter body to the oil filter bracket.
4. After warming up the engine, check for engine oil leakage.
5. Check oil level and add engine oil. Refer toLU-7, "
ENGINE OIL"
JLC292B
Oil filter:
:20-24N·m(2.0-2.5Kg-m,15-18ft-lb)

LU-22
[YD22DDTi]
OIL FILTER BRACKET
OIL FILTER BRACKET
PFP:15238
Removal and InstallationEBS00BL8
REMOVAL
1. Remove the under cover.
2. Steer the front wheel to the right.
3. Remove the right splash cover.
4. Remove the oil filter bracket bolt. Refer toLU-20, "
OIL FILTER"for cautions.
INSTALLATION
1. Install all removed parts in the reverse order of removal.
lInsert the top mounting bolt to the oil filter bracket beforehand, and set the oil filter bracket to the installa-
tion location.
lAfter warning up the engine, check for engine oil leakage.
JLC301B

OIL PUMP
LU-23
[YD22DDTi]
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OIL PUMPPFP:15010
Removal and InstallationEBS00B06
lRemove front cover. Refer to Primary Timing ChainEM-163, "PRIMARY TIMING CHAIN".
Disassembly and AssemblyEBS00B07
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 oil pump housing.
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 housing (position 1)
Tip clearance between inner rotor and outer rotor (position 2)
lMeasure clearance with feeler gauge and straightedge.
Side clearance between inner rotor and oil pump housing (posi-
tion 3)
Side clearance between outer rotor and oil pump housing (posi-
tion 4)
JLC285B
Standard : 0.114 - 0.260 mm (0.0045 - 0.0102 in)
Standard : Below 0.18 mm (0.0071in)
JLC355B
Standard : 0.050 - 0.090 mm (0.0020 - 0.0035 in)
Standard : 0.030 - 0.190 mm (0.0012 - 0.0075 in)
JLC356B

LU-24
[YD22DDTi]
OIL PUMP
lCalculate the clearance between inner rotor and oil pump hous-
ing as follows.
1. Measure the outer diameter of protruded portion of inner rotor
(Position 5)
2. Measure the inner diameter of oil pump housing with inside
micrometer (Position 6)
(Clearance) = (Inner diameter of oil pump housing) – (Outer
diameter of inner rotor)
Regulator Valve
1. Visually inspect components for wear and damage.
2. Check oil pressure regulator valve sliding surface and valve spring.
3. Coat regulator valve with engine oil. Check that it falls smoothly into the valve hole by its own weight.
If damaged, replace regulator valve set or oil pump housing.
4. Check regulator valve to oil pump housing clearance.
CAUTION:
Coat regulator valve with engine oil.
Check that it falls smoothly into the valve hole by its own
weight.
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.
lThe refill capacity depends on the oil temperature and drain
time. Use these specifications for reference only.
Always use the dipstick to the determine when the proper
amount of oil is in the engine.
PBIC0253E
Standard : 0.045 - 0.091mm (0.0018 - 0.0036 in)
SBIA0124E
Clearance 6 :
6 : 0.040 - 0.097 mm (0.0016 - 0.0038 in)
JLC358B
JLC286B