2001 NISSAN X-TRAIL engine oil

LU-24
[YD22DDTi]
OIL PUMP
●Calculate 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.
ASSEMBLY
●Assemble in the reverse order of disassembly.
●Install the inner rotor and outer rotor with the punched marks on
the oil pump cover side.
●After warming up the engine, check for oil leakage and oil level.
Refer to LU-18, "
ENGINE OIL" .
PBIC0253E
Standard : 0.045 - 0.091mm (0.0018 - 0.0036 in)
SBIA0124E
Clearance "6":
0.040 - 0.097 mm (0.0016 - 0.0038 in)
JLC358B
JLC286B

OIL COOLER
LU-25
[YD22DDTi]
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OIL COOLERPFP:21305
Removal and InstallationEBS00OE8
CAUTION:
●Be careful not to get burned when the engine and engine oil are hot.
●When removing, prepare a shop cloth to absorb any engine oil leakage or spillage.
●Completely wipe off any engine oil that adhere to the engine and the vehicle.
REMOVAL
1. Remove front RH wheel and engine side cover.
2. Remove the exhaust front tube. Refer to EX-2, "
EXHAUST SYSTEM" .
3. Drain coolant by removing cylinder block drain plug and radiator drain cock.
INSPECTION
Oil Cooler
Check oil cooler for cracks. check oil cooler for clogging by blowing through coolant inlet. If necessary, replace
oil cooler assembly.
INSTALLATION
Installation is in reverse order of removal.
●Confirm that no foreign objects are adhering to the installation
planes of the oil cooler or cylinder block.
●Tighten the connecting bolt after aligning the stopper on the cyl-
inder block side with protrusion of the oil cooler.
●After for warming up the engine, check for engine oil and engine
coolant leakage and for engine oil level. Refer to LU-18,
"ENGINE OIL" .
PBIC1231E
1. Oil cooler 2. O-ring 3. Water hose
4. Gasket 5. Water hose connector 6. Connecting bolt
SBIA0126E

LU-26
[YD22DDTi]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
PFP:00030
Standard and LimitEBS00CTZ
OIL PRESSURE
OIL PUMP
Unit: mm (in)
REGULATOR VALVE
Unit: mm (in)
OIL CAPACITY
Unit: · (Imp qt)
Tightening TorqueEBS00B0F
Unit: N·m (kg-m, ft-lb)
Unit: N·m (kg-m, in-lb)* Engine speed rpm
Approximate discharge pressure kPa (bar, kg/cm
2 , psi)
Idle speed
2,000
4,000 More than 140 (1.40, 1.43, 20.3)
More than 270 (2.69, 2.75, 39.1)
More than 430 (4.29, 4.38, 62.3)
Body to outer rotor radial clearance 0.114 - 0.260 (0.0045 - 0.0102)
Inner rotor to outer rotor tip clearance Below 0.18 (0.0071)
Body to inner rotor axial clearance 0.050 - 0.090 (0.0020 - 0.0035)
Body to outer rotor axial clearance 0.030 - 0.190 (0.0012 - 0.0075)
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)
With oil filter change Approximately 5.2 (4-5/8 Imp qt)
Without oil filter change Approximately 4.9 (4-3/8 Imp qt)
Dry engine (engine overhaul) Approximately 6.3 (5-1/2 Imp qt)
Oil pressure switch 13 - 17 (1.4 - 1.7, 10 - 12)
Oil pan drain plug 29 - 39 (3.0 - 4.0, 22 - 29)
Oil filter bracket20 -23 (2.0 - 2.4, 15 - 17)
Oil filter body20 - 24 (2.0 - 2.5, 15 - 18)
Oil pump assembly 6.4 - 7.4 (0.65 - 0.76, 57 - 65)*
Oil pump cover 5.9 - 7.8 (0.6 - 0.8, 52 - 69)*
Regulator plug40 - 68 (4.0 - 7.0, 29 - 50)
Water hose connector for oil cooler 25 - 31 (2.5 - 3.2, 18 - 23)
Connecting bolt20 - 29 (2.1 - 2.9, 15 - 21)

PRECAUTIONS
CO-3
[QR]
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[QR]PRECAUTIONSPFP:00001
Precautions For Liquid GasketEBS00MRX
REMOVAL OF LIQUID GASKET
●After removing the mounting bolts and nuts, separate the mating
surface using a seal cutter and remove the old liquid gasket
sealing.
CAUTION:
Be careful not to damage the mating surfaces.
●In 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-blade
screwdriver is used, be careful not to damage the mating
surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using a scraper, remove the old liquid gasket adhering to the liq-
uid gasket application surface and the mating surface.
●Remove the liquid gasket completely from the groove of the
liquid gasket application surface, mounting bolts and bolt
holes.
2. Wipe the liquid gasket application surface and the mating sur-
face 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 liquid gasket without breaks to the specified location
with the specified dimensions.
●If there is a groove for the liquid gasket application, apply the
liquid gasket to the groove.
●As for the bolt holes, normally apply the liquid gasket inside
the holes. If specified, it should be applied outside the holes.
Make sure to read the instruction in this manual.
●Within five minutes of liquid gasket application, install the mat-
ing component.
●If the liquid gasket protrudes, wipe it off immediately.
●Do not retighten after the installation.
●After 30 minutes or more have passed from the installation, fill
the engine oil and engine coolant.
CAUTION:
If there are instructions in this manual, observe them.
PBIC0275E
PBIC0003E
EMA0622D
SEM159F

RADIATOR
CO-11
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RADIATORPFP:21400
Removal and InstallationEBS00KOI
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
engine coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter
turn to allow built-up pressure to escape. Carefully remove the cap by turning it all the way.
REMOVAL
1. Drain engine coolant. Refer to CO-9, "DRAINING ENGINE COOLANT" .
2. Remove air duct with air cleaner assembly.
3. Remove A/T oil cooler hose.
●Install blind plug to avoid leakage of A/T fluid.
4. Disconnect radiator upper hose, lower hose and mounting bracket.
5. Remove radiator and radiator fan assembly
CAUTION:
Do not damage or scratch radiator core when removing.
INSTALLATION
●Reinstall any parts removed in reverse order of removal.
●Check for engine coolant leaks. Refer to CO-9, "CHECKING RADIATOR SYSTEM FOR LEAKS" .
PBIC0237E
1. Radiator 2. Bracket 3. Mounting rubber
4. A/T oil cooler hose 5. Radiator hose (lower) 6. Radiator fan assembly
7. Reservoir tank 8. Radiator hose (upper) 9. Radiator cap

CO-18
[QR]
WATER PUMP
WATE R P U M P
PFP:21020
Removal and InstallationEBS00KON
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
engine coolant escaping from the radiator.
REMOVAL
Water Pump Removal
1. Drain engine coolant. Refer to CO-9, "DRAINING ENGINE COOLANT" .
CAUTION:
Perform when the engine is cold.
2. Remove the following parts.
●Engine undercover
●Alternator, water pump and air compressor belt. Refer to EM-12, "DRIVE BELTS" .
3. Remove water pump.
●Engine coolant will leak from the cylinder block, so have a receptacle ready below.
CAUTION:
●Handle the water pump vane so that it does not contact any other parts.
●Water pump cannot be disassembled and should be replaced as a unit.
Water Pump Housing Removal
1. Perform step 1 and 2 of “Water Pump Removal”.
2. Remove alternator.
3. Remove oil level gauge.
CAUTION:
Plug the oil level gauge guide opening to prevent oil pan from entering foreign materials.
4. Remove bolts mounting water pipe.
5. Remove water pump housing.
Water Pipe Removal
1. Remove water pump housing.
2. Remove exhaust manifold and three way catalyst assembly. Refer to EM-24, "
EXHAUST MANIFOLD
AND THREE WAY CATALYST" .
KBIA0154E
1. Water pump 2. Gasket 3. Water pump housing
4. Water pipe

PRECAUTIONS
CO-23
[YD22DDTi]
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[YD22DDTi]PRECAUTIONSPFP:00001
Precautions For Liquid GasketEBS00MRY
REMOVAL OF LIQUID GASKET
●After removing the mounting bolts and nuts, separate the mating
surface using a seal cutter and remove the old liquid gasket
sealing.
CAUTION:
Be careful not to damage the mating surfaces.
●In 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-blade
screwdriver is used, be careful not to damage the mating
surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using a scraper, remove the old liquid gasket adhering to the liq-
uid gasket application surface and the mating surface.
●Remove the liquid gasket completely from the groove of the
liquid gasket application surface, mounting bolts and bolt
holes.
2. Wipe the liquid gasket application surface and the mating sur-
face 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 liquid gasket without breaks to the specified location
with the specified dimensions.
●If there is a groove for the liquid gasket application, apply the
liquid gasket to the groove.
●As for the bolt holes, normally apply the liquid gasket inside
the holes. If specified, it should be applied outside the holes.
Make sure to read the instruction in this manual.
●Within five minutes of liquid gasket application, install the mat-
ing component.
●If the liquid gasket protrudes, wipe it off immediately.
●Do not retighten after the installation.
●After 30 minutes or more have passed from the installation, fill
the engine oil and engine coolant.
CAUTION:
If there are instructions in this manual, observe them.
PBIC0275E
PBIC0003E
EMA0622D
SEM159F

WATER PUMP
CO-39
[YD22DDTi]
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WAT E R P U MPPFP:21020
Removal and InstallationEBS00BB4
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
engine coolant escaping from the radiator.
REMOVAL
1. Remove the under cover, splash cover (right), and drive belt.
2. Drain engine coolant. Refer to CO-29, "
DRAINING ENGINE COOLANT" .
CAUTION:
Perform when the engine is cold.
3. Support the bottom of the oil pan with a floor jack etc, and remove the right engine mount bracket (front
side of the engine).
4. Remove the water pump pulley.
●Loosen the pulley bolts after fixing the pulley using a screwdriver etc.
5. Remove engine mount bracket.
6. Remove the water pump.
●Engine coolant will leak from the cylinder block, so have a receptacle ready below.
CAUTION:
●Handle the water pump vane so that it does not contact any other parts.
●Water pump cannot be disassembled and should be replaced as a unit.
INSPECTION AFTER REMOVAL
●Visually check that there is no significant dirt or rusting on the
water pump body and vane.
●Check that there is no looseness in the vane shaft, and that it
turns smoothly when rotated by hand.
●If there are any unusualness, replace the water pump assembly.
JLC294B
SBIA0132E