2001 NISSAN X-TRAIL oil

EM-88
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CYLINDER BLOCK
Use Undersize Bearing Usage Guide
●Use undersize (US) bearing when oil clearance with standard size main bearing is not within specification.
●When using undersize (US) bearing, measure the bearing inner diameter with bearing installed, and grind
journal until oil clearance falls within specification.
Bearing undersize table
Unit: mm (in)
CAUTION:
Keep fillet R when grinding crankshaft journal in order to use
underseas bearing (All journals).
Inspection After DisassemblyEBS00KNW
CRANKSHAFT END PLAY
●Using dial indicator, measure crankshaft travel amount by mov-
ing the crankshaft forward or backward.
●If the measured value exceeds the limit, replace the thrust bear-
ings, and measure again. If it still exceeds the limit, replace the
crankshaft also.
01UPR 1.973 - 1.976 (0.0777 - 0.0778)
Black / Brown
Grade and color are different
for upper and lower bearings. LWR 1.976 - 1.979 (0.0778 - 0.0779)
12UPR 1.976 - 1.979 (0.0778 - 0.0779)
Brown / Green
LWR 1.979 - 1.982 (0.0779 - 0.0780)
23UPR 1.979 - 1.982 (0.0779- 0.0780)
Green / Yellow
LWR 1.982 - 1.985 (0.0780 - 0.0781)
34UPR 1.982 - 1.985 (0.0780 - 0.0781)
Yellow / Blue
LWR 1.985 - 1.988 (0.0781 - 0.0783)
45UPR 1.985 - 1.988 (0.0781 - 0.0783)
Blue / Pink
LWR 1.988 - 1.991 (0.0783 - 0.0784)
56UPR 1.988 - 1.991 (0.0783 - 0.0784)
Pink / Purple
LWR 1.991 - 1.994 (0.0784 - 0.0785)
67UPR 1.991 - 1.994 (0.0784 - 0.0785)
Purple / White
LWR 1.994 - 1.997 (0.0785 - 0.0786) Grade number Thickness Identification color
(UPR / LWR)Remarks
Size Thickness
US 0.25 (0.0098) 2.106 - 2.114 (0.0829 - 0.0832)
KBIA0148E
Standard : 0.10 - 0.26 mm (0.0039 - 0.0102 in)
Limit : 0.30 mm (0.0118 in)
PBIC0268E

EM-90
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CYLINDER BLOCK
NOTE:
●The connecting rod small end grade and piston pin hole (pis-
ton pin) grade are provided only for the parts installed at the
plant. For service parts, no grades can be selected. (Only 0
grade is available.)
●Refer to EM-91, "CONNECTING ROD BUSHING OIL
CLEARANCE (SMALL END)" for the values for each grade at
the plant.
●Regarding marks on piston head, Refer to EM-83, "HOW TO
SELECT PISTON" .
PISTON RING SIDE CLEARANCE
●Measure side clearance of piston ring and piston ring groove
with feeler gauge.
●If out of specification, replace piston and/or piston ring assembly.
PISTON RING END GAP
●Check if inner diameter of cylinder bore is within specification.
Refer to EM-93, "
PISTON TO CYLINDER BORE CLEARANCE"
.
●Insert piston ring until middle of cylinder with piston, and mea-
sure gap.
●If out of specification, replace piston ring. If gap still exceeds the limit even with a new ring, re-bore cylin-
der and use oversized piston and piston ring.
SBIA0282E
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 : 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 : 0.95 mm (0.0374 in)
SEM822B

CYLINDER BLOCK
EM-91
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CONNECTING ROD BEND AND TORSION
●Check with connecting rod aligner.
●If it exceeds the limit, replace connecting rod assembly.
CONNECTING ROD BEARING (BIG END)
Install the connecting rod cap without the connecting rod bearing
installed. After tightening the connecting rod bolt to the specified
torque, measure the connecting rod big end inner diameter using an
inside micrometer.
CONNECTING ROD BUSHING OIL CLEARANCE (SMALL END)
Inner Diameter of Connecting Rod (Small End)
Measure inner diameter of bushing.Bend
Limit:
0.15 mm (0.0059 in) per 100 mm (3.94 in) length.
To r s i o n
Limit:
0.30 mm (0.0118 in) per 100 mm (3.94 in) length.
SEM003F
SEM038F
Standard: 48.000 - 48.013 mm (1.8898 - 1.8903 in)
PBIC0119E
Standard: 20.000 - 20.012 mm (0.7874 - 0.7879 in)
PBIC0120E

EM-92
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CYLINDER BLOCK
Outer Diameter of Piston Pin
Measure outer diameter of piston pin.
Connecting Rod Bushing Oil Clearance (Small End)
(Connecting rod small end oil clearance) = (Inner diameter of con-
necting rod small end) – (Outer diameter of piston pin)
●If the measured value exceeds the standard, replace the con-
necting rod assembly and/or piston and piston pin assembly.
●If replacing the piston and piston pin assembly, refer to the “Pis-
ton Selection Table” to select the piston corresponding to the
applicable bore grade of the cylinder block to be used. Refer to
EM-83, "
HOW TO SELECT PISTON" .
Factory installed parts grading:
Service parts apply only to grade 0.
Unit: mm (in)
CYLINDER BLOCK DISTORTION
●Using a scraper, remove gasket on the cylinder block surface,
and also remove engine oil, scale, carbon, or other contamina-
tion.
CAUTION:
Be careful not to allow gasket flakes to enter the engine oil
or engine coolant passages.
●Measure the distortion on the block upper face at some different
points in 6 directions.
●If out of the distortion limit, replace the cylinder block.Standard: 19.989 - 20.001 mm (0.7870 - 0.7874 in)
PBIC0117E
Standard: 0.005 - 0.017 mm (0.0002 - 0.0007 in)
SBIA0282E
Grade 0 1
Connecting rod small end
inner diameter 20.000 - 20 .0 06
(0.7874 - 0.7876) 20.006 - 20.012
(0.7876 - 0.7879)
Piston pin outer diameter 19.989 - 19.995
(0.7870 - 0.7872) 19.995 - 20. 001
(0.7872 - 0.7874)
Piston pin bore diameter 19.993 - 19.999
(0.7871- 0.7874) 19.999 - 20.005
(0.7874 - 0.7876)
KBIA0259E
Limit: 0.1 mm (0.004 in)
PBIC0121E

CYLINDER BLOCK
EM-95
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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 the crankshaft, read the movement of the pointer
on the dial gauge. (Total indicator reading)
CONNECTING ROD BEARING OIL CLEARANCE
Method of Measurement
●Install the connecting rod bearings to the connecting rod and the
cap, and tighten the connecting rod bolts to the specified torque.
Using a inside micrometer measure the inner diameter of con-
necting rod bearing.
(Oil clearance) = (Inner diameter of connecting rod bearing) –
(Outer diameter of crankshaft pin)
●If out of specifications, check connecting rod big end inner diam-
eter and crankshaft pin outer diameter, and select appropriate
connecting rod bearing to adjust clearance to specifications.
Refer to EM-83, "
HOW TO SELECT CONNECTING ROD BEARING" .
Method of Using Plastigage
●Remove engine oil and dust on the crankshaft pin and the sur-
faces of each bearing completely.
●Cut a plastigage slightly shorter than the bearing width, and
place it in crankshaft axial direction, avoiding oil holes.
●Install the connecting rod bearings to the connecting rod cap,
and tighten the connecting rod bolts to the specified torque.
CAUTION:
Never rotate the crankshaft.
●Remove the connecting rod cap 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 “Method of Mea-
surement”.
MAIN BEARING OIL CLEARANCE
Method of Measurement
●Install the main bearings to the cylinder block and bearing cap. Measure the main bearing inner diameter
with the bearing cap bolt tightened to the specified torque.
(Oil clearance) = (Inner diameter of main bearing) – (Outer diameter of crankshaft journal)
●If out of specification, check main bearing housing inner diameter and crankshaft journal outer diameter,
and select appropriate main bearing to adjust clearance to specifications. Refer to EM-85, "
HOW TO
SELECT MAIN BEARING" . Limit: Less than 0.05 mm (0.002 in)
PBIC0271E
Standard : 0.028 - 0.045 mm (0.0011 - 0.0018 in)
Limit : 0.10 mm (0.0039 in)
PBIC0119E
EM142
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)

EM-96
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CYLINDER BLOCK
Method of Using Plastigage
●Remove engine oil and dust on the crankshaft 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.
●Tighten the main bearing bolts to the specified torque.
CAUTION:
Never rotate the crankshaft.
●Remove the bearing cap 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 “Method of Measurement”.
MAIN BEARING CRUSH HEIGHT
●When the bearing cap is removed after being tightened to the
specified torque with main bearings installed, the tip end of bear-
ing must protrude.
●If the standard is not met, replace main bearings.
OUTER DIAMETER OF LOWER CYLINDER BLOCK MOUNTING BOLT
●Perform only with M10 (0.39 in) bolts.
●Measure outer diameters (d1, d2) at two positions shown in the figure.
●Measure d2 at a point within block A.
●When the value of d1- d2 exceeds the limit (a large difference in
dimensions), replace the bolt with a new one.
OUTER DIAMETER OF CONNECTING ROD BOLT
●Measure outer diameter (d) at position shown in the figure.
●When “d ” exceeds the limit (when it becomes thinner), replace
the bolt with a new one.
EM142
Standard: There must be crush height.
SEM502G
Limit: 0.13 mm (0.0051 in) or more.
SBIA0285E
Limit: 7.75 mm (0.3051 in) or less.
SBIA0286E

EM-98
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
PFP:00030
Standard and LimitEBS00KNX
GENERAL SPECIFICATIONS
DRIVE BELTS
INTAKE MANIFOLD AND EXHAUST MANIFOLD
Unit: mm (in)
SPARK PLUG
CYLINDER HEAD
Unit: mm (in) Engine typeQR20DE QR25DE
Cylinder arrangement4.in-line
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, 181.3)
Minimum 990 (9.9, 10.1, 144) 1,060 (10.6, 10.8, 153.7)
Differential limit between cylinders 100 (1.0, 1.0, 14)
Tension of drive belts Auto adjustment by auto-tensioner
Item Limit
Surface distortionIntake manifold collector 0.1 (0.004)
Intake manifold 0.1 (0.004)
Exhaust manifold 0.3 (0.012)
MakeNGK
Standard typeLFR5A-11
Hot typeLFR4A-11
Cold typeLFR6A-11
Spark plug gap mm (in) 1.0 - 1.1 (0.039 - 0.043)
Item Limit
Head surface distortion 0.1 (0.004)
PBIC0283E

EM-104
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SERVICE DATA AND SPECIFICATIONS (SDS)
Piston Ring
Unit: mm (in)
Piston Pin
Unit: mm (in)
CONNECTING ROD
Unit: mm (in)
*: After installing in connecting rodItem Standard Limit
Side clearanceTop 0.045 - 0.080 (0.0018 - 0.0031) 0.11 (0.0043)
2nd 0.030 - 0.070 (0.0012 - 0.0028) 0.10 (0.004)
Oil ring 0.065 - 0.135 (0.0026 - 0.0053) —
End gapTop 0.21- 0.31 (0.0083 - 0.0122) 0.54 (0.0213)
2nd 0.32 - 0.47 (0.0126 - 0.0185) 0.67 (0.0264)
Oil (rail ring) 0.20 - 0.60 (0.0079 - 0.0236) 0.95 (0.0374)
Piston pin outer diameterGrade No. 0 19.989 - 19.995 (0.7870 - 0.7872)
Grade No. 1 19.995 - 20.001 (0.7872 - 0.7874)
Interference fit of piston pin to piston 0.002 - 0.006 (0.0001 - 0.0002)
Piston pin to connecting rod bushing oil clearance Standard 0.005 - 0.017 (0.0002 - 0.0007)
Center distanceQR20DE 152.83 - 152.97 (6.02 - 6.02)
QR25DE 143.0 - 143.10 (5.63 - 5.63)
Bend [per 100 (3.94)] Limit 0.15 (0.0059)
Torsion [per 100 (3.94)] Limit 0.30 (0.0118)
Piston pin bushing inner diameter*Grade No. 0 20.000 - 20.006 (0.7874 - 0.7876)
Grade No. 1 20.006 - 20.012 (0.7876 - 0.7879)
Connecting rod big end inner diameter 48.000 - 48.013 (1.8898 - 1.8903)
Side clearanceStandard 0.20 - 0.35 (0.0079 - 0.0138)
Limit 0.50 (0.0197)
Connecting rod bearing housingGrade No. 0
Grade No. 1
Grade No. 2
Grade No. 3
Grade No. 4
Grade No. 5
Grade No. 6
Grade No. 7
Grade No. 8
Grade No. 9
Grade No. A
Grade No. B
Grade No. C48.000- 48.001 (1.8898 - 1.8898)
48.001- 48.002 (1.8898 - 1.8898)
48.002- 48.003 (1.8898 - 1.8899)
48.003 - 48.004 (1.8899 - 1.8899)
48.004 - 48.005 (1.8899 - 1.8900)
48.005 - 48.006 (1.8900 - 1.8900)
48.006 - 48.007 (1.8900 - 1.8900)
48.007 - 48.008 (1.8900 - 1.8901)
48.008 - 48.009 (1.8901- 1.8901)
48.009 - 48.010 (1.8901- 1.8902)
48.010 - 48.011 (1.8902 - 1.8902)
48.011 - 48.012 (1.8902 - 1.8902)
48.012 - 48.013 (1.8902 - 1.8903)