2003 NISSAN X-TRAIL engine oil

EM-100
[QR]
CYLINDER BLOCK


When replacing piston and piston pin assembly, refer to EM-103, "PISTON TO CYLINDER BORE
CLEARANCE" .
NOTE:

Piston is available together with piston pin as assembly.

Piston pin (piston pin hole) grade is provided only for the parts installed at the plant. For service parts,
no grades can be selected. (Only grade “0” is available.)
PISTON RING SIDE CLEARANCE

Measure the side clearance of piston ring and piston ring groove
with a feeler gauge.

If the measured value exceeds the limit, replace piston ring, and measure again. If it still exceeds the limit,
replace piston also.
PISTON RING END GAP

Make sure that cylinder bore inner diameter is within specifica-
tion. Refer to EM-103, "
Cylinder Bore Inner Diameter" .

Lubricate with new engine oil to piston and piston ring, and then
insert piston ring until middle of cylinder with piston, and mea-
sure piston ring end gap with a feeler gauge.

If the measured value exceeds the limit, replace piston ring, and measure again. If it still exceeds the limit,
re-bore cylinder and use oversized piston and piston rings.Standard:
Top ring : 0.045 - 0.080 mm (0.0018 - 0.0031 in)
2nd ring : 0.030 - 0.070 mm (0.0012 - 0.0028 in)
Oil ring : 0.065 - 0.135 mm (0.0026 - 0.0053 in)
Limit:
Top ring : 0.11 mm (0.0043 in)
2nd ring : 0.10 mm (0.0039 in)
SEM024AA
Standard:
Top ring : 0.21 - 0.31 mm (0.0083 - 0.0122 in)
2nd ring : 0.32 - 0.47 mm (0.0126 - 0.0185 in)
Oil ring
(rail ring) : 0.20 - 0.60 mm (0.0079 - 0.0236 in)
Limit:
Top ring : 0.54 mm (0.0213 in)
2nd ring : 0.67 mm (0.0264 in)
Oil ring
(rail ring): 0.95 mm (0.0374 in)
SEM822B

EM-102
[QR]
CYLINDER BLOCK

Piston Pin Outer Diameter
Measure the outer diameter of piston pin with a micrometer.
Connecting Rod Bushing Oil Clearance
(Connecting rod bushing oil clearance) = (Connecting rod bushing inner diameter) – (Piston pin outer diame-
ter)

If the measured value is out of the standard, replace connecting rod assembly and/or piston and piston pin
assembly.

If replacing piston and piston pin assembly, refer to EM-103, "PISTON TO CYLINDER BORE CLEAR-
ANCE" .

If replacing connecting rod assembly, refer to EM-105, "CON-
NECTING ROD BEARING OIL CLEARANCE" to select con-
necting rod bearing.
Factory installed parts grading:

Service parts apply only to grade “0”.
Unit: mm (in)
* : After installing in connecting rod.
CYLINDER BLOCK DISTORTION

Using a scraper, remove gasket on the cylinder block surface, and also remove engine oil, scale, carbon,
or other contamination.
CAUTION:
Be careful not to allow gasket flakes to enter engine oil or engine coolant passages.Standard: 19.989 - 20.001 mm (0.7870 - 0.7874 in)
PBIC0117E
Standard: 0.005 - 0.017 mm (0.0002 - 0.0007 in)
PBIC2196E
Grade 0 1
Connecting rod bushing
inner diameter
* 20.000 - 20 .0 06
(0.7874 - 0.7876) 20.006 - 20.012
(0.7876 - 0.7879)
Piston pin hole diameter19.993 - 19.999
(0.7871 - 0.7874) 19.999 - 20. 005
(0.7874 - 0.7876)
Piston pin outer diameter 19.989 - 19.995
(0.7870 - 0.7872) 19.995 - 20.001
(0.7872 - 0.7874)
PBIC2197E

CYLINDER BLOCK
EM-105
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CRANKSHAFT PIN JOURNAL DIAMETER

Measure the outer diameter of crankshaft pin journal with a micrometer.

If out of the standard, measure the connecting rod bearing oil clearance. Then use undersize bearing.
Refer to EM-105, "
CONNECTING ROD BEARING OIL CLEARANCE" .
OUT-OF-ROUND AND TAPER OF CRANKSHAFT

Measure the dimensions at four different points as shown in the
figure on each main journal and pin journal with a micrometer.

Out-of-round is indicated by the difference in dimensions
between “X” and “Y” at “A” and “B”.

Taper is indicated by the difference in dimension between “A”
and “B” at “X” and “Y”.

If the measured value exceeds the limit, correct or replace crankshaft.

If corrected, measure the bearing oil clearance of the corrected main journal and/or pin journal. Then
select main bearing and/or connecting rod bearing. Refer to EM-106, "
MAIN BEARING OIL CLEAR-
ANCE" and/or EM-105, "CONNECTING ROD BEARING OIL CLEARANCE" .
CRANKSHAFT RUNOUT

Place a V-block on a precise flat table to support the journals on
the both end of the crankshaft.

Place a dial gauge straight up on the No. 3 journal.

While rotating crankshaft, read the movement of the pointer on
the dial gauge. (Total indicator reading)

If it exceeds the limit, replace crankshaft.
CONNECTING ROD BEARING OIL CLEARANCE
Method by Calculation

Install connecting rod bearings to connecting rod and cap, and tighten connecting rod bolts to the speci-
fied torque. Refer to EM-87, "
ASSEMBLY" for tightening procedure.

Measure the inner diameter of connecting rod bearing with an
inside micrometer.
(Bearing oil clearance) = (Connecting rod bearing inner diame-
ter) – (Crankshaft pin journal diameter)

If clearance exceeds the limit, select proper connecting rod
bearing according to connecting rod big end diameter and
crankshaft pin journal diameter to obtain specified bearing oil
clearance. Refer to EM-93, "
HOW TO SELECT CONNECTING
ROD BEARING" .
Method of Using Plastigage

Remove engine oil and dust on crankshaft pin and the surfaces of each bearing completely. Standard: 44.956 - 44.974 mm (1.7699-1.7706 in) dia.
Limit:
Out-of-round (Difference between “X” and “Y”)
: 0.005 mm (0.0002 in)
Taper (Difference between “A” and “B”)
: 0.005 mm (0.0002 in)
PBIC2203E
Limit:
QR20DE : 0.03 mm (0.0012 in)
QR25DE : 0.05 mm (0.0020 in)
PBIC0271E
Standard : 0.028 - 0.045 mm (0.0011 - 0.0018 in)
Limit : 0.10 mm (0.0039 in)
PBIC1642E

EM-106
[QR]
CYLINDER BLOCK


Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding
oil holes.

Install connecting rod bearings to connecting rod and cap, and tighten connecting rod bolts to the speci-
fied torque. Refer to EM-87, "
ASSEMBLY" for the tightening procedure.
CAUTION:
Do not rotate crankshaft.

Remove connecting rod cap and bearing, and using the scale on
the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING OIL CLEARANCE
Method by Calculation

Install main bearings to cylinder block and lower cylinder block, and tighten lower cylinder block mounting
bolts to the specified torque. Refer to EM-87, "
ASSEMBLY" for the tightening procedure.

Measure the inner diameter of main bearing with a bore gauge.
(Bearing oil clearance) = (Main bearing inner diameter) – (Crank-
shaft main journal diameter)

If clearance exceeds the limit, select proper main bearing
according to main bearing inner diameter and crankshaft main journal diameter to obtain specified bearing
oil clearance. Refer to EM-95, "
HOW TO SELECT MAIN BEARING" .
Method of Using Plastigage

Remove engine oil and dust on crankshaft main journal and the surfaces of each bearing completely.

Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding
oil holes.

Install main bearings to cylinder block and lower cylinder block, and tighten lower cylinder block mounting
bolts to the specified torque. Refer to EM-87, "
ASSEMBLY" for the tightening procedure.
CAUTION:
Do not rotate crankshaft.

Remove lower cylinder block and bearings, and using the scale
on the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
PBIC1149E
Standard:
No. 1, 3 and 5 journals
: 0.012 - 0.022 mm (0.0005 - 0.0009 in)
No. 2 and 4 journals
: 0.018 - 0.028 mm (0.0007 - 0.0011 in)
Limit : 0.1 mm (0.004 in)
PBIC2204E
PBIC1149E

SERVICE DATA AND SPECIFICATIONS (SDS)
EM-109
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitEBS00KNX
GENERAL SPECIFICATIONS
DRIVE BELT
INTAKE MANIFOLD AND EXHAUST MANIFOLD
Unit: mm (in)
SPARK PLUG
Unit: mm (in)
CYLINDER HEAD
Unit: mm (in) Engine typeQR20DE QR25DE
Cylinder arrangementIn-line 4
Displacement
cm
3 (cu in)1,998 (121.92) 2,488 (151.82)
Bore and stroke mm (in) 89.0 x 80.3 (3.504 x 3.161) 89.0 x 100.0 (3.504 x 3.937)
Valve arrangementDOHC
Firing order1-3-4-2
Number of piston ringsCompression 2
Oil 1
Compression ratio 9.0 9.5
Compression pressure
kPa (bar, kg/cm
2 , psi) / 250 rpmStandard 1,190 (11.9, 12.1, 173) 1,250 (12.5, 12.8, 181)
Minimum 990 (9.9, 10.1, 144) 1,060 (10.6, 10.8, 154)
Differential limit between cylinders 100 (1.0, 1.0, 14)
Tension of drive belt Auto adjustment by auto-tensioner
Items Limit
Surface distortionIntake manifold collector (QR25DE) 0.1 (0.004)
Intake manifold (QR25DE) 0.1 (0.004)
Exhaust manifold and three way catalyst assembly 0.3 (0.012)
MakeNGK
Standard typeLFR5A-11
Hot typeLFR4A-11
Cold typeLFR6A-11
Spark plug gap Standard 1.0 - 1.1 (0.039 - 0.043)
ItemsLimit
Head surface distortion 0.1 (0.004)
PBIC0283E

EM-122
[YD22DDTi]
PRECAUTIONS

[YD22DDTi]PRECAUTIONSPFP:00001
Precautions for Draining Engine CoolantEBS00LQZ
Drain engine coolant when engine is cooled.
Precautions for Disconnecting Fuel PipingEBS00LR0

Before starting work, make sure no fire or spark producing items are in the work area.

After disconnecting pipes, plug openings to stop fuel leakage.
Precautions for Removal and DisassemblyEBS00LR1

When instructed to use special service tools, use the specified tools. Always be careful to work safely,
avoid forceful or uninstructed operations.

Exercise maximum care to avoid damage to mating or sliding surfaces.

Cover openings of engine system with tape or the equivalent, if necessary, to seal out foreign materials.

Mark and arrange disassembly parts in an organized way for easy troubleshooting and re-assembly.

When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, do exactly as specified.
Precautions for Inspection, Repair and ReplacementEBS00LR2
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precautions for Assembly and InstallationEBS00LR3

Use torque wrench to tighten bolts or nuts to specification.

When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the
ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is speci-
fied, do exactly as specified.

Replace with new liquid gasket, packing, oil seal or O-ring.

Thoroughly wash, clean, and air-blow each part. Carefully check engine oil or engine coolant passages for
any restriction and blockage.

Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust.
Before assembly, engine oil sliding surfaces well.

Release air within route when refilling after draining coolant.

After repairing, start engine and increase engine speed to check engine coolant, fuel, engine oil, and
exhaust systems for leakage.
Parts Requiring Angle TighteningEBS00LR4

Use an angle wrench (special service tool: KV10112100) for the final tightening of the following engine
parts:
–Cylinder head bolts
–Main bearing cap bolts
–Connecting rod cap nuts
–Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angular
tightening)

Do not use a torque value for final tightening.

The torque value for these parts are for a preliminary step.

Ensure thread and seat surfaces are clean and coated with engine oil.

PRECAUTIONS
EM-123
[YD22DDTi]
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Precautions For Liquid GasketEBS00ODW
REMOVAL OF LIQUID GASKET

After removing the mounting bolts and nuts, separate the mating
surface using the seal cutter (special service tool) and remove
the old liquid gasket sealing.
CAUTION:
Be careful not to damage the mating surfaces.

In areas where the seal cutter (special service tool) is difficult to
use, use a plastic hammer to lightly tap (1) the seal cutter where
the liquid gasket is applied. Use a plastic hammer to slide the
seal cutter (2) by tapping on the side.
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 tube to the tube presser (special service
tool).
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
PBIC2160E
SEM159F

EM-124
[YD22DDTi]
PREPARATION

PREPARATIONPFP:00002
Special Service ToolsEBS00LR6
Tool number
Tool nameDescription
ST0501S000
Engine stand assembly
1. ST05011000
Engine stand
2. ST05012000
BaseDisassembling and assembling
KV10106500
Engine stand shaft
KV11105900
Engine sub-attachmentUsed with KV10106500
KV10115600
Valve oil seal driftInstalling valve oil seal
Use side A.
Side A
a: 20 (0.79) dia.
b: 13 (0.51) dia.
c: 10.3 (0.406) dia.
d: 8 (0.31) dia.
e: 10.7 (0.421)
f: 5 (0.20)
Unit: mm (in)
KV10107902
Valve oil seal puller
1. KV10116100
Valve oil seal puller adapterRemoving valve oil seal
KV11103000
Pulley pullerRemoving crankshaft pulley
ED19600610
Compression gauge adapterChecking compression pressure
NT042
NT028
NT799
NT603
S-NT605
NT676
ZZA1188D