NISSAN X-TRAIL 2003 Service Repair Manual

OIL PUMP
LU-13
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OIL PUMPPFP:15010
Removal and InstallationEBS00KO6
REMOVAL
Remove front cover. Refer to EM-44, "TIMING CHAIN" .
NOTE:
Oil pump is built into front cover.
INSTALLATION
Note the following, and install in the reverse order of removal.

When installing, align crankshaft flat faces with inner rotor flat faces.
INSPECTION AFTER INSTALLATION
1. After warming up engine, make sure there is no leaks of engine oil.
2. Stop engine and wait for 10 minutes.
3. Check the engine oil level and add engine oil. Refer to LU-7, "
ENGINE OIL" .
Disassembly and AssemblyEBS00KO7
DISASSEMBLY
1. Remove oil pump cover.
2. Remove inner rotor and outer rotor from front cover.
3. After removing regulator valve plug, remove regulator spring and regulator valve.
PBIC2430E
1. Front cover (Oil pump body is united) 2. Outer rotor 3. Inner rotor
4. Oil pump cover 5. Regulator valve 6. Regulator valve spring
7. Regulator valve plug

LU-14
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OIL PUMP

INSPECTION AFTER DISASSEMBLY
Clearance of Oil Pump Parts

Measure the clearance with a feeler gauge.
–Clearance between outer rotor and oil pump body (position 1)
–Tip clearance between inner rotor and outer rotor (position 2)

Measure the clearance with a 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)

Calculate the clearance between inner rotor and oil pump body with the following procedure:
–Measure the outer diameter of protruded portion of inner rotor
with a micrometer. (position 5)
–Measure the inner diameter of oil pump body with an inside
micrometer. (position 6)
–(Clearance) = (Inner diameter of oil pump body) – (Outer diame-
ter of inner rotor)

If measured/calculated values are out of the standard, replace oil pump assembly.Standard : 0.114 - 0.179 mm (0.0045 - 0.0070 in)
Standard : Below 0.220 mm (0.0087 in)
PBIC0251E
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 - 0.070 mm (0.0014 - 0.0028 in)
PBIC0254E

OIL PUMP
LU-15
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Regulator Valve Clearance
(Clearance) = (Valve hole diameter “D1”) – (Regulator valve outer
diameter “D2”)

If out of the standard, replace oil pump assembly.
CAUTION:

Coat regulator valve with new engine oil.

Make sure that it falls smoothly into valve hole by its own
weight.
ASSEMBLY
Note the following, and assemble in the reverse order of disassembly.

Install inner rotor and outer rotor with the punched marks on the
oil pump cover side.Standard : 0.040 - 0.097 mm (0.0016 - 0.0038 in)
KBIA0043E
PBIC0255E

LU-16
[QR]
SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitEBS00KO9
OIL PRESSURE
*: Engine oil temperature at 80° (176°F)
ENGINE OIL CAPACITY (APPROXIMATE)
Unit: (Imp qt)
OIL PUMP
Unit: mm (in)
REGULATOR VALVE
Unit: mm (in)
Tightening TorqueEBS00KOA
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 More than 98 (0.98, 1.0, 14)
2,000 More than 294 (2.94, 3.0, 43)
Drain and refillWith oil filter change 3.9 (3-3/8)
Without oil filter change 3.5 (3-1/8)
Dry engine (Overhaul)4.5 (4)
Oil pump 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)
Oil pump body to inner rotor side clearance 0.030 - 0.070 (0.0012 - 0.0028)
Oil pump body to outer rotor side clearance 0.060 - 0.110 (0.0024 - 0.0043)
Inner rotor to oil pump body clearance 0.035 - 0.070 (0.0014 - 0.0028)
Regulator valve to valve hole clearance 0.040 - 0.097 (0.0016 - 0.0038)
Oil pressure switch14.8 (1.5, 11)
Oil pan drain plug34.3 (3.5, 25)
Oil filter17.6 (1.8, 13)
Oil pump cover Bolt 7.0 (0.71, 62)*
Screw 6.9 (0.70, 61)*
Regulator valve plug54.0 (5.5, 40)
Oil cooler39.2 (4.0, 29)
Oil cooler bracket21.6 (2.2, 16)

PRECAUTIONS
LU-17
[YD22DDTi]
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[YD22DDTi]PRECAUTIONSPFP:00001
Precautions for Liquid GasketEBS011SZ
LIQUID GASKET APPLICATION PROCEDURE
1. Remove the old liquid gasket adhering to the gasket application surface and the mating surface.

Remove the liquid gasket completely from the gasket application surface, mounting bolts, and bolt holes.
2. Wipe the liquid gasket application surface and the mating surface with white gasoline (lighting and heating
use) to remove adhering moisture, grease and foreign materials.
3. Attach liquid gasket tube to the tube presser (special service
tool).
Use Genuine Liquid Gasket or equivalent.

Within five minutes of gasket application, install the mating com-
ponent.

If the liquid gasket protrudes, wipe it off immediately.

Do not retighten mounting bolts and nuts after the installation.

Wait 30 minutes or more after installation before filling the
engine with engine oil and engine coolant.
PBIC2160E

LU-18
[YD22DDTi]
PREPARATION

PREPARATIONPFP:00002
Special Service ToolsEBS00B01
Commercial Service ToolsEBS011WH
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
Tool nameDescription
Deep socketRemoving and installing oil pressure switch
a: 24 mm (0.94 in)
PBIC2072E

LUBRICATION SYSTEM
LU-19
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LUBRICATION SYSTEMPFP:15010
Lubrication CircuitEBS00B02
PBIC2500E

LU-20
[YD22DDTi]
ENGINE OIL

ENGINE OILPFP:KLA92
InspectionEBS00B03
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 10 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 engine oil leakage around the following area.

Oil pan

Oil pan drain plug

Oil pressure switch

Oil filter bracket

Oil cooler.

Oil pump housing

Va c u u m p u m p

Cylinder head rear cover assembly

Front and rear chain cases

Mating surface between cylinder block and cylinder head

Mating surface between cylinder head and rocker cover

Front and rear oil seals

Turbocharger

Oil tube connecting parts from turbocharger
ENGINE OIL PRESSURE CHECK
WARNING:

Be careful not to burn yourself, as the engine oil is hot.

Be sure to check oil pressure in “ Neutral position” and parking brake should be applied securely.
1. Check the engine oil level. Refer to LU-20, "
ENGINE OIL LEVEL" .
2. Remove RH engine undercover.
3. Remove exhaust front tube. Refer to EX-2, "
EXHAUST SYSTEM" .
SBIA0122E

ENGINE OIL
LU-21
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4. Disconnect harness connector at oil pressure switch, and using
deep socket (commercial service tool), remove oil pressure
switch.
5. Install the oil pressure gauge and hose (special service tool).
6. After warming up engine, make sure that oil pressure corresponding to the engine speed is produced.
NOTE:
When engine oil temperature is low, engine oil pressure becomes high.
Engine oil pressure [Engine oil temperature at 80 °C (176 °F)]
7. After checking, 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 specification.
Use Genuine Thread Sealant or equivalent.
c. After warming up engine, check for oil leakage with running engine.
Changing Engine OilEBS00B04
WARNING:

Be careful not to burn yourself, as the engine oil is 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-20, "
ENGINE OIL LEAKAGE" .
2. Stop engine and wait for 10 minutes.
SBIA0123E
SLC926-A
Engine speed (rpm) Idle speed 2,000
Engine pressure
kPa (bar, kg/cm
2 , psi)140 (1.40, 1.43, 20.3) or more 270 (2.70, 2.75, 39.2) or more
Oil pressure switch:
: 13.0 - 17.0 N·m (1.4 - 1.7 kg-m, 10 - 12 ft-lb)

LU-22
[YD22DDTi]
ENGINE OIL

3. Loosen oil filler cap and then remove drain plug.
4. Drain engine oil.
5. Install drain plug with new washer. Refer to EM-147, "
OIL PAN AND OIL STRAINER" .
CAUTION:
Be sure to clean drain plug and install with new washer.
6. Refill with new engine oil.
Engine oil specification and viscosity:
Refer to MA-17, "
RECOMMENDED FLUIDS AND LUBRICANTS" .
Engine oil capacity (Approximate):
Unit: (lmp qt)
CAUTION:

The refill capacity depends on the engine oil temperature and drain time. Use these specifica-
tions for reference only.

Always use the oil level gauge to determine when the proper amount of engine oil is in the
engine.
7. Warm up engine and check area around drain plug and oil filter for oil leakage.
8. Stop engine and wait for 10 minutes.
9. Check the engine oil level. Refer to LU-20, "
ENGINE OIL LEVEL" .
PBIC0527E
Oil pan drain plug:
: 34 N·m (3.5 kg-m, 25 ft-lb)
Drain and refill With oil filter change 5.2 (4-5/8)
Without oil filter change 4.9 (4-3/8)
Dry engine (Overhaul)6.3 (5-1/2)