2001 NISSAN X-TRAIL check oil

OIL FILTER
LU-21
[YD22DDTi]
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4. Remove the O-ring from the filter body.
●Push 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 and O-ring to the filter body.
●Push the oil filter 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 engine oil level and add engine oil. Refer to LU-18, "
ENGINE OIL"
JLC292B
Oil filter:
: 20 - 24 N·m (2.0 - 2.5 Kg-m, 15 - 18 ft-lb)

LU-22
[YD22DDTi]
OIL FILTER BRACKET
OIL FILTER BRACKET
PFP:15238
Removal and InstallationEBS00BL8
REMOVAL
1. Remove the engine undercover.
2. Steer the front wheel to the right.
3. Remove the right splash cover.
4. Remove the oil filter bracket bolt. Refer to LU-20, "
OIL FILTER" for cautions.
INSTALLATION
1. Install all removed parts in the reverse order of removal.
●Insert the top mounting bolt to the oil filter bracket beforehand, and set the oil filter bracket to the instal-
lation location.
●After warming up the engine, check for engine oil leakage and oil level. Refer to LU-18, "ENGINE OIL" .
PBIC1249E

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

RADIATOR
CO-11
[QR]
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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

RADIATOR (ALUMINUM TYPE)
CO-17
[QR]
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●Use pliers in the locations where Tool cannot be used.
5. Make sure that the rim is completely crimped down.
6. Confirm that there is no leakage.
Refer to CO-17, "
INSPECTION" .
INSPECTION
1. Apply pressure with Tool.
WARNING:
To prevent the risk of the hose coming undone while under
pressure, securely fasten it down with a hose clamp.
Attach a hose to the oil cooler to seal its inlet and outlet.
(A/T model only)
2. Check for leakage by soaking radiator in water container.
SLC897
Standard height “H”:
8.0 - 8.4 mm (0.315 - 0.331 in)
SLC554A
Specified pressure value:
157 kPa (1.57 bar, 1.6 kg/cm
2 , 23 psi)
SLC933
SLC934

CO-38
[YD22DDTi]
RADIATOR (ALUMINUM TYPE)
●Use pliers in the locations where Tool cannot be used.
5. Make sure that the rim is completely crimped down.
6. Confirm that there is no leakage.
Refer to Inspection.
INSPECTION
1. Apply pressure with Tool.
WARNING:
To prevent the risk of the hose coming undone while under
pressure, securely fasten it down with a hose clamp.
Attach a hose to the oil cooler to seal its inlet and outlet.
(A/T model only)
2. Check for leakage by soaking radiator in water container.
SLC897
Standard height “H”: 8.0 - 8.4 mm (0.315 - 0.331 in)
SLC554A
Specified pressure value:
157 kPa (1.57 bar, 1.6 kg/cm
2 , 23 psi)
SLC933
SLC934

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