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When Re-using the Removed Crankshaft and Connecting Rod
1. Measure the inner diameter of the big end of connecting rod and make sure it is NISSAN X-TRAIL 2005 Service Repair Manual CYLINDER BLOCK
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When Re-using the Removed Crankshaft and Connecting Rod
1. Measure the inner diameter of the big end of connecting rod and make sure it is](/manual-img/5/57403/w960_57403-296.png)
CYLINDER BLOCK
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When Re-using the Removed Crankshaft and Connecting Rod
1. Measure the inner diameter of the big end of connecting rod and make sure it is within the specified
range. Refer to EM-248, "
CONNECTING ROD BIG END INNER DIAMETER" .
2. Measure the outer diameter of the crankshaft pin journal. Refer to EM-251, "
CRANKSHAFT PIN JOUR-
NAL DIAMETER" .
3. Determine the crankshaft pin journal grade by comparing the measurement with the values under the col-
umn “Crankshaft pin journal diameter” in “Selection Table of connecting Rod Bearing”.
4. Choose bearings of the same grade.
Selection Table of connecting Rod Bearing
Unit: mm (in)
Unit: mm (in)
Under Size Bearing Usage
If bearing clearance is out of the specifications for connecting rod bearings in standard size, use under
size bearings.
When using under size bearings, measure bearing inner diameter with bearing installed, and grind crank-
shaft pins to adjust clearance to specification.
Connecting Rod Bearing Under Size List
Unit: mm (in)
CAUTION:
When grinding the crankshaft pin journal to use an under size
bearing, avoid damaging the fillet R.
Connecting rod big end inner diameter 55.000 - 55.013 (2.1654 - 2.1659)
Crankshaft pin journal diameter Grade (Mark) Dimension (Bearing thickness range) Bearing grade No. Color
51.968 - 51.974 (2.0460 - 2.0462) 0 1.492 - 1.496 (0.0587 - 0.0589) STD 0 Black
51.961 - 51.968 (2.0457 - 2.0460) 1 1.496 - 1.500 (0.0589 - 0.0591) STD 1 Brown
51.954 - 51.961 (2.0454 - 2.0457) 2 1.500 - 1.504 (0.0591 - 0.0592) STD 2 Green
Size Thickness
US 0.08 (0.0031) 1.536 - 1.540 (0.0605 - 0.0606)
US 0.12 (0.0047) 1.556 - 1.560 (0.0613 - 0.0614)
US 0.25 (0.0098) 1.621 - 1.625 (0.0638 - 0.0640)
Standard dimension R : 1.5 - 1.7 mm (0.0591 - 0.0669 in)
PBIC2200E
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![NISSAN X-TRAIL 2005 Service Repair Manual EM-244
[YD22DDTi]
CYLINDER BLOCK
HOW TO SELECT MAIN BEARING
When Using New Cylinder Block and Crankshaft
1. Identify the main bearing housing grade (No. 0, 1, or 2) on LH
surface at the rear of the NISSAN X-TRAIL 2005 Service Repair Manual EM-244
[YD22DDTi]
CYLINDER BLOCK
HOW TO SELECT MAIN BEARING
When Using New Cylinder Block and Crankshaft
1. Identify the main bearing housing grade (No. 0, 1, or 2) on LH
surface at the rear of the](/manual-img/5/57403/w960_57403-297.png)
EM-244
[YD22DDTi]
CYLINDER BLOCK
HOW TO SELECT MAIN BEARING
When Using New Cylinder Block and Crankshaft
1. Identify the main bearing housing grade (No. 0, 1, or 2) on LH
surface at the rear of the cylinder block, and locate the applica-
ble grade on the “Grade” row in the “Main Bearing Grade Table”.
2. Identify the main journal grade (No. 0, 1, or 2) on the front sur-
face of crankshaft, and locate the applicable grade under the
“Grade” column in the “Main Bearing Grade Table”.
3. The main bearing to be used (STD 0 to STD 4) can be located in the cell where the row and column cross.
When Re-using Removed Cylinder Block and Crankshaft
1. Measure the inner diameter of cylinder block main bearing housing. Refer to EM-249, "MAIN BEARING
HOUSING INNER DIAMETER" .
2. Locate the applicable cell where the measurement falls, on “Inner diameter of Cylinder block main bearing
housing” row in the “Main Bearing Grade Table”.
3. Measure the outer diameter of crankshaft main journal. Refer to EM-251, "
CRANKSHAFT MAIN JOUR-
NAL DIAMETER" .
4. Locate the applicable cell where the measurement falls, under “Crankshaft main journal diameter” column
in the “Main Bearing Grade Table”.
5. The main bearing to be used (STD 0 to STD 4) can be located in the cell where the row and column cross.
Main Bearing Grade Table
Unit: mm (in)
PBIC2589E
PBIC2590E
Inner diameter of Cylinder block main bearing housing66.654 - 66.663
(2.6242 - 2.6245)66.663 - 66.672
(2.6245 - 2.6249)66.672 - 66.681
(2.6249 - 2.6252)
Crankshaft main
journal diameterGrade
(punched)012
62.967 - 62.975
(2.4790 - 2.4793)0
Bearing grade No.
Bearing thickness
Oil clearance
Identification colorSTD 0
1.816 - 1.820
(0.0715 - 0.0717)
0.039 - 0.066
(0.0015 - 0.0026)
BlackSTD 1
1.820 - 1.824
(0.0717 - 0.0718)
0.039 - 0.066
(0.0015 - 0.0026)
BrownSTD 2
1.824 - 1.828
(0.0718 - 0.0720)
0.039 - 0.066
(0.0015 - 0.0026)
Green
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Under Size Bearing Usage
If bearing clearance is out of the specifications for main bearings in standard size, use under size bear-
ings.
NISSAN X-TRAIL 2005 Service Repair Manual CYLINDER BLOCK
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Under Size Bearing Usage
If bearing clearance is out of the specifications for main bearings in standard size, use under size bear-
ings.](/manual-img/5/57403/w960_57403-298.png)
CYLINDER BLOCK
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Under Size Bearing Usage
If bearing clearance is out of the specifications for main bearings in standard size, use under size bear-
ings.
When using under size bearings, measure bearing inner diameter with bearing installed, and grind crank-
shaft journals to adjust clearance to the specification.
Main Bearing Under Size List
Unit: mm (in)
CAUTION:
When grinding crankshaft main journals to use under size bear-
ings, keep corners radius of fillet R.
Inspection After DisassemblyEBS00ODP
CRANKSHAFT END PLAY
Using dial indicator, measure crankshaft travel amount by mov-
ing the crankshaft forward or backward.
If the value exceeds the limit, replace thrust bearings with new
ones and measure again.
If the measurement exceeds the limit again, replace crankshaft
with a new one.
62.959 - 62.967
(2.4787 - 2.6790)1
Bearing grade No.
Bearing thickness
Oil clearance
Identification colorSTD 1
1.820 - 1.824
(0.0717 - 0.0718)
0.039 - 0.066
(0.0015 - 0.0026)
BrownSTD 2
1.824 - 1.828
(0.0718 - 0.0720)
0.039 - 0.066
(0.0015 - 0.0026)
GreenSTD 3
1.828 - 1.832
(0.0720 - 0.0721)
0.039 - 0.066
(0.0015 - 0.0026)
Ye l l o w
62.951 - 62.959
(2.4784 - 2.4787)2
Bearing grade No.
Bearing thickness
Oil clearance
Identification colorSTD 2
1.824 - 1.828
(0.0718 - 0.0720)
0.039 - 0.066
(0.0015 - 0.0026)
GreenSTD 3
1.828 - 1.832
(0.0720 - 0.0721)
0.039 - 0.066
(0.0015 - 0.0026)
Ye l l o wSTD 4
1.832 - 1.836
(0.0721 - 0.0723)
0.039 - 0.066
(0.0015 - 0.0026)
Blue
Size Thickness
US 0.25 (0.0098) 1.949 - 1.953 (0.0767 - 0.0769)
Standard dimension R : 1.5 - 1.7 mm (0.0591 - 0.0669 in)
PBIC2200E
Standard : 0.10 - 0.25 mm (0.0039 - 0.0098 in)
Limit : 0.30 mm (0.0118 in)
PBIC2377E
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![NISSAN X-TRAIL 2005 Service Repair Manual EM-246
[YD22DDTi]
CYLINDER BLOCK
CONNECTING ROD SIDE CLEARANCE
Using feeler gauge, measure side clearance between connect-
ing rod and crankshaft arm.
If measured value exceeds the limit, replace NISSAN X-TRAIL 2005 Service Repair Manual EM-246
[YD22DDTi]
CYLINDER BLOCK
CONNECTING ROD SIDE CLEARANCE
Using feeler gauge, measure side clearance between connect-
ing rod and crankshaft arm.
If measured value exceeds the limit, replace](/manual-img/5/57403/w960_57403-299.png)
EM-246
[YD22DDTi]
CYLINDER BLOCK
CONNECTING ROD SIDE CLEARANCE
Using feeler gauge, measure side clearance between connect-
ing rod and crankshaft arm.
If measured value exceeds the limit, replace connecting rod and
repeat measurement.
If measured value still exceeds the limit, replace crankshaft.
PISTON TO PISTON PIN CLEARANCE
Piston Pin Bore Diameter
Using inside micrometer, measure piston pin bore diameter.
Piston Pin Outer Diameter
Using micrometer, measure piston pin outer diameter.
Calculation of Piston to Piston Pin Clearance
(Piston pin clearance) = (Piston pin bore diameter) − (Piston pin outer diameter)
If out of the standard, replace piston/piston pin assembly.
When replacing piston and piston pin assembly, refer to EM-250, "PISTON TO CYLINDER BORE
CLEARANCE" .
NOTE:
Piston is available together with piston pin as assembly.Standard : 0.20 - 0.35 (0.0079 - 0.0138 in)
Limit : 0.40 mm (0.0157 in)
JEM203G
Standard : 28.003 - 28.009 mm (1.1025 - 1.1027 in)
PBIC0116E
Standard : 27.995 - 28.000 mm (1.1022 - 1.1024 in)
PBIC0117E
Standard : 0.003 - 0.014 mm (0.0001 - 0.0006 in)
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PISTON RING SIDE CLEARANCE
Using feeler gauge, measure the side clearance between piston
ring and piston ring groove.
Unit: mm (in)
Align NISSAN X-TRAIL 2005 Service Repair Manual CYLINDER BLOCK
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PISTON RING SIDE CLEARANCE
Using feeler gauge, measure the side clearance between piston
ring and piston ring groove.
Unit: mm (in)
Align](/manual-img/5/57403/w960_57403-300.png)
CYLINDER BLOCK
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PISTON RING SIDE CLEARANCE
Using feeler gauge, measure the side clearance between piston
ring and piston ring groove.
Unit: mm (in)
Align top ring and external surface of piston. Measure lower side
clearance of top ring with top ring pressed onto upper side of
ring groove.
If side clearance exceeds the limit, replace piston ring.
Check clearance again. If side clearance still exceeds the limit,
replace piston.
PISTON RING END GAP
Make sure that cylinder bore diameter is within the specifica-
tions. Refer to EM-250, "
PISTON TO CYLINDER BORE
CLEARANCE" .
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 feeler gauge.
Unit: mm (in)
If out of the limit, replace piston ring. If gap still exceeds the limit even with a new ring, re-bore cylinder
and use oversized piston and piston ring. Refer to EM-250, "
PISTON TO CYLINDER BORE CLEAR-
ANCE" .
Item Standard Limit
Top ring 0.050 - 0.090 (0.0020 - 0.0035) 0.2 (0.008)
2nd ring 0.050 - 0.090 (0.0020 - 0.0035) 0.1 (0.004)
Oil ring 0.030 - 0.070 (0.0012 - 0.0028) —
SEM024AA
FEM100
Item Standard Limit
Top ring 0.20 - 0.30 (0.0079 - 0.0118)
1.0 (0.039) 2nd ring 0.31 - 0.51 (0.0122 - 0.0201)
Oil ring 0.30 - 0.55 (0.0118 - 0.0217)
FEM101
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EM-248
[YD22DDTi]
CYLINDER BLOCK
CONNECTING ROD BEND AND TORSION
Use connecting rod aligner to check bend and torsion.
If it exceeds the limit, replace connecting rod assembly.
CONNECTING ROD BIG END INNER DIAMETER
Install connecting rod caps without connecting rod bearings and
tighten connecting rod nuts to the specified torque. Refer to EM-
235, "ASSEMBLY" .
Using inside micrometer, measure connecting rod big end inner
diameter.
If out of the standard, replace connecting rod.
CONNECTING ROD BUSHING OIL CLEARANCE
Connecting Rod Bushing Inner Diameter
Use inside micrometer to measure bushing inner diameter.Bend limit : 0.12 mm (0.0047 in)/100 mm (3.94 in)
Torsion limit : 0.12 mm (0.0047 in)/100 mm (3.94 in)
PBIC2077E
Standard : 55.000 - 55.013 mm (2.1654 - 2.1659 in)
PBIC1641E
Standard : 28.026 - 28.038 mm (1.1034 - 1.1039 in)
PBIC0120E
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Piston Pin Outer Diameter
Use micrometer to measure piston pin outer diameter.
Calculation of Connecting Rod Bushing Clearance
(Connecting NISSAN X-TRAIL 2005 Service Repair Manual CYLINDER BLOCK
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Piston Pin Outer Diameter
Use micrometer to measure piston pin outer diameter.
Calculation of Connecting Rod Bushing Clearance
(Connecting](/manual-img/5/57403/w960_57403-302.png)
CYLINDER BLOCK
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Piston Pin Outer Diameter
Use micrometer to measure piston pin outer diameter.
Calculation of Connecting Rod Bushing Clearance
(Connecting rod bushing clearance) = (Connecting rod bushing inner diameter) − (Piston pin outer diameter)
If it exceeds the limit, replace connecting rod and/or piston and piston pin assembly. Refer to EM-242,
"HOW TO SELECT CONNECTING ROD BEARING" and/or EM-242, "HOW TO SELECT PISTON" .
CYLINDER BLOCK TOP SURFACE DISTORTION
Using scraper, remove gasket installed onto cylinder block sur-
face. Remove contamination such as engine oil, scale, and car-
bon.
CAUTION:
Keep broken pieces of gasket clear of engine oil and engine
coolant passages.
Use straightedge and feeler gauge to check block upper surface
for six distortion.
If it exceeds the limit, replace cylinder block.
MAIN BEARING HOUSING INNER DIAMETER
Without installing main bearings, install main bearing caps, and
tighten bolts to the specified torque. Refer to EM-235, "
ASSEM-
BLY" .
Measure the inner diameter of main bearing housing with a bore
gauge.
If the measurement is out of the standard, replace cylinder block
and main bearing caps.
NOTE:
These components cannot be replaced as a single unit, because
they were processed together.Standard : 27.995 - 28.000 mm (1.1022 - 1.1024 in)
PBIC0117E
Standard : 0.026 - 0.044 mm (0.0010 - 0.0017 in)
Limit : 0.057 mm (0.0022 in)
Limit : 0.1 mm (0.004 in)
SEM501G
Standard : 66.654 - 66.681 mm (2.6242 - 2.6252 in)
PBIC1643E
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![NISSAN X-TRAIL 2005 Service Repair Manual EM-250
[YD22DDTi]
CYLINDER BLOCK
PISTON TO CYLINDER BORE CLEARANCE
Cylinder Bore Inner Diameter
Using bore gauge, measure cylinder inner diameters at six posi-
tions; top, middle, and bottom (“A NISSAN X-TRAIL 2005 Service Repair Manual EM-250
[YD22DDTi]
CYLINDER BLOCK
PISTON TO CYLINDER BORE CLEARANCE
Cylinder Bore Inner Diameter
Using bore gauge, measure cylinder inner diameters at six posi-
tions; top, middle, and bottom (“A](/manual-img/5/57403/w960_57403-303.png)
EM-250
[YD22DDTi]
CYLINDER BLOCK
PISTON TO CYLINDER BORE CLEARANCE
Cylinder Bore Inner Diameter
Using bore gauge, measure cylinder inner diameters at six posi-
tions; top, middle, and bottom (“A”, “B”, “C”) in 2 directions (“X”,
“Y”).
If the measured value exceeds the limit, or if there are scratches
and/or seizure on the cylinder inner wall, hone or bore the inner
wall.
Oversize piston is provided. When using oversize piston, hone
the cylinder so that the clearance between piston and cylinder
satisfies the standard.
CAUTION:
If oversize piston is used, use it for all cylinders with over-
size piston rings.
Piston Skirt Diameter
Use micrometer to measure piston skirt diameter.
Calculation of Piston to Cylinder Bore Clearance
Calculate using piston skirt diameter and cylinder bore inner diameter (direction “X”, position “B”).
(Clearance) = (Cylinder bore inner diameter) − (Piston skirt diameter)
If it exceeds the limit, replace piston and piston pin assembly. Refer to EM-242, "HOW TO SELECT PIS-
TON" .
Reboring Cylinder Bore
1. Determine the cylinder bore size by adding piston-to-cylinder bore clearance to piston skirt diameter.Cylinder bore inner diameter
: 86.000 - 86.030 mm (3.3858 - 3.5870 in)
Wear limit
: 0.20 mm (0.008 in)
Out-of-round limit (Difference between “X” and “Y”)
: 0.015 mm (0.0006 in)
Taper limit (Difference between “A“ and “C”)
: 0.010 mm (0.0004 in)
JEM207G
Oversize (OS) : 0.25 mm (0.0098 in)
: 0.50 mm (0.0197 in)PBIC2246E
Piston skirt diameter
Measurement position : 11.0 mm (0.43 in)
Distance from the bottom
Standard : 85.928 - 85.962 mm
(3.3830 - 3.3843 in)
0.25 (0.0098) O/S : 86.188 - 86.202
(3.3932 - 3.3938 in)
0.50 (0.0197) O/S : 86.438 - 86.452
(3.4031 - 3.4036 in)
PBIC0125E
Specifications at room temperature [20°C (68°F)]:
Standard : 0.058 - 0.082 mm (0.0023 - 0.0032 in)
Rebore size calculation:
D = A + B – C
Where,