Nissan Juke (2016 year). Service Repair Manual — part 343
EM-300
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR EXCEPT FOR NISMO RS MODELS]
CYLINDER BLOCK
• Measure the main journal outer diameter using a micrometer (A).
• If it is outside the standard, check the main bearing oil clearance
and use the undersize bearing. Refer to "Main bearing oil clear-
ance."
Crankshaft Pin Journal Diameter
• Measure the main journal outer diameter using a micrometer.
• If it is outside the standard, check the connecting rod bearing oil clearance and use the undersize bearing.
Refer to "Connecting rod bearing oil clearance."
Out-of-round and Taper of Crankshaft
• Measure each main journal and pin journal at four locations shown
in the figure using a micrometer.
• Out-of-round is indicated by the difference between the dimen-
sions at positions “A” and “B” measured in directions “X” and “Y”.
• Taper is indicated by the difference between the dimensions in
directions “X” and “Y” measured at positions “A” and “B”.
• Correct or replace the crankshaft if it exceeds the limit.
- If repair is performed, check the oil clearance and select the main
bearing and connecting rod bearing. Refer to "Main bearing oil
clearance" or "Connecting rod bearing oil clearance."
- When replacing the crankshaft, refer to
EM-304, "Selective-fit Service Parts"
and connecting rod bearing.
Crankshaft Runout
• Set a pair of V-blocks on a level block and support journals at both ends of crankshaft.
• Set a dial indicator (A) vertically onto journal No. 3.
• Rotate crankshaft one rotation and read indication on the indicator.
• Replace crankshaft if the limit is exceeded.
- When replacing the crankshaft, refer to
and select the main bearing and connecting rod bear-
ing.
Connecting Rod Bearing Oil Clearance
Using calculation
Stan
dard
: Refer to
PBIC3457J
Stan
dard
: Refer to
Limit
: Refer to
.
PBIC3459J
Stan
dard
: Refer to
Limit
PBIC3458J
Revision: November 2015
2016 JUKE
CYLINDER BLOCK
EM-301
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR EXCEPT FOR NISMO RS MODELS]
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• Install connecting rod bearing (2) onto connecting rod (3) and con-
necting rod cap (1). Tighten connecting rod bolts to the specified
torque. Using an inside micrometer, measure connecting rod inner
diameter.
- For the connecting rod bolt tightening procedure, refer to
.
• Measure crankshaft pin journal diameter. Refer to "Crankshaft pin
journal diameter."
• (Oil clearance) = (Connecting rod bearing inner diameter) - (Camshaft pin journal outer diameter)
• If the limit is exceeded, select a connecting rod bearing according to the dimensions of the crankshaft pin
journal outer diameter, so that engine oil clearance is within the standard. Refer to
Using plastigage
• Completely wipe away oil and dust on crankshaft pin journal and bearing surfaces.
• Cut a piece of plastigage slightly shorter than bearing width, and place it in axial direction. Be careful not to
interfere with oil hole.
• Install connecting rod bearing to connecting rod and connecting rod cap. Tighten connecting rod bolts to the
specified torque.
- For the connecting rod bolt tightening procedure, refer to
EM-287, "Disassembly and Assembly"
CAUTION:
Never rotate crankshaft while plastigage is in place.
• Remove connecting rod cap and bearing. Measure width of the
plastigage using scale (A) printed on its bag.
NOTE:
If the limit is exceeded, follow the procedure in "Using calculation".
Main Bearing Oil Clearance
Using calculation
• Install main bearing (3) onto cylinder block (1) and main bearing
cap (2). Tighten main bearing cap bolts to the specified torque.
Using a bore gauge, measure main bearing inner diameter.
- For main bearing cap bolt tightening procedure, refer to
.
• Measure crankshaft main journal diameter. Refer to "Crankshaft
main journal diameter."
• (Oil clearance) = (Connecting rod bearing inner diameter) - (Cam-
shaft main journal outer diameter)
A : Image
B
: Inner diameter
measurement di-
rection
Stan
dard
: Refer to
Limit
PBIC3275J
JPBIA4438ZZ
A : Image
B
: Inner diameter measure-
ment direction
PBIC3277J
Revision: November 2015
2016 JUKE
EM-302
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR EXCEPT FOR NISMO RS MODELS]
CYLINDER BLOCK
• If the limit is exceeded, select a connecting rod bearing according to the dimensions of the crankshaft pin
journal outer diameter, so that engine oil clearance is within the standard. Refer to
Using plastigage
• Completely wipe away oil and dust on crankshaft main journal and bearing surfaces.
• Cut a piece of plastigage slightly shorter than bearing width, and place it in axial direction. Be careful not to
interfere with oil hole.
• Install the main bearing onto the cylinder block and main bearing cap, and then tighten the main bearing cap
bolts to the specified torque.
- For main bearing cap bolt tightening procedure, refer to
EM-287, "Disassembly and Assembly"
.
CAUTION:
Never rotate crankshaft while plastigage is in place.
• Remove the main bearing cap and bearing. Measure width of the
plastigage using scale (A) printed on its bag.
NOTE:
If the limit is exceeded, follow the procedure in "Using calculation".
Main Bearing Crush Height
• With main bearing (1) installed, tighten main bearing cap bolt to the
specified torque. Remove main bearing cap and check that the
main bearing protrudes to [crush height (B)].
- For main bearing cap bolt tightening procedure, refer to
.
• If crush height is not secured, replace the main bearing. Refer to
EM-304, "Selective-fit Service Parts"
Connecting Rod Bearing Crush Height
• With connecting rod bearing (1) installed, tighten connecting rod
bolt to the specified torque. Remove connecting rod cap and check
that the front edge of the connecting rod bearing protrudes [to
crush height (B)].
- For the connecting rod bolt tightening procedure, refer to
.
• If a crush height does not exist, replace the connecting rod bear-
ing. Refer to
EM-304, "Selective-fit Service Parts"
.
Main Bearing Cap Bolt Outer Diameter
Stan
dard
: Refer to
Limit
PBIC3278J
A : Image
PBIC3279J
A : Image
PBIC3279J
Revision: November 2015
2016 JUKE
CYLINDER BLOCK
EM-303
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR EXCEPT FOR NISMO RS MODELS]
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• Measure diameter at two locations (d1 and d2) as shown in the fig-
ure.
• If another narrower part in the threads is identified, use the position
as d2.
• Calculate the difference between d1 and d2.
• Replace main bearing cap bolts if the limit is exceeded (the differ-
ence between the dimensions is large).
Connecting Rod Bolt Outer Diameter
• Measure the outer diameter d at the position shown as in the fig-
ure.
• If another narrower part in the threads is identified, use the position
as d.
• Replace connecting rod bolts if the limit is exceeded (it is thinner).
A : d1 measurement range
B : d2 measurement range
Limit : 0.15 mm (0.0059 in)
PBIC3253J
Limit :
φ
7.75 mm (0.305 in)
PBIC3254J
Revision: November 2015
2016 JUKE
EM-304
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR EXCEPT FOR NISMO RS MODELS]
HOW TO SELECT PISTON AND BEARING
HOW TO SELECT PISTON AND BEARING
Selective-fit Service Parts
INFOID:0000000012197447
SELECTION METHOD
• The identification grade stamped on each part is the grade for the dimension measured in new condition. It is
not applied to reused parts.
• For reused or repaired parts, measure the dimension accurately. Determine the grade by comparing the
measurement with the values of each selection table in this section.
• For details of the measurement method of each part, the reuse standards and the selection method of the
selective fitting parts, refer to the text.
PISTON SELECTIVE-FIT SERVICE PARTS
When New Cylinder Block is Used
• Check cylinder bore grade number (either 1 or 2) stamped on cyl-
inder block LH surface (L), and select piston of the same grade
number.
• If there is a correction stamp, the symbol is the correct one.
NOTE:
Piston is a service part for piston pin and assembly.
When Reusing a Cylinder Block
1. Measure cylinder block bore inner diameter. Refer to
Position
Selective-fit service parts
Item to be selected
Selection method
Between cylinder block
and
crankshaft
Main bearing
Main bearing grade
(Bearing thickness)
Select proper size according to cylinder
block main bearing housing grade
(housing inner diameter) and crankshaft
main journal grade (journal outer diam-
eter).
Between crankshaft
and
connecting rod
Connecting rod bearing
Connecting rod bearing grade
(Bearing thickness)
Select proper size according to con-
necting rod large end grade (connecting
rod large end inner diameter) and
crankshaft pin journal grade (pin outer
diameter).
Between cylinder block
and
piston
Piston and piston pin as-
sembly
Note: Piston and piston pin
are service parts for assem-
bly.
Piston grade
(Piston outer diameter)
Piston grade = cylinder bore grade
(bore inner diameter)
A
: Correction stamp
B
: Standard stamp
C
: Cylinder No. 1 bore grade
D
: Cylinder No. 2 bore grade
E
: Cylinder No. 3 bore grade
F
: Cylinder No. 4 bore grade
G
: No. 1 main bearing housing grade
H
: No. 2 main bearing housing grade
I
: No. 3 main bearing housing grade
J
: No. 4 main bearing housing grade
K
: No. 5 main bearing housing grade
: Engine front
PBIC3264J
Revision: November 2015
2016 JUKE
HOW TO SELECT PISTON AND BEARING
EM-305
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR EXCEPT FOR NISMO RS MODELS]
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2. Determine the grade number of the measured cylinder bore at
"Cylinder Bore Inner Diameter" in the Selective-fit Service Parts
Table, and select the piston of the same grade number.
Selective-fit Service Parts Table
Unit: mm (in)
*: No stamp is only for piston side.
SELECTIVE-FIT CONNECTING ROD BEARING
Using New Connecting Rod and Crankshaft
1. Find the large end grade (D) of connecting rod side surface in
the rows of the Selective-fit Service Parts Table.
NOTE:
The symbol of connecting rod is one example.
2. Find the pin diameter grade of crankshaft front surface in the
columns of the Selective-fit Service Parts Table.
3. Find the symbol at the intersection of the selected row and column in the Selective-Fit fervice Parts Table.
4. Find the symbol at the intersection in "Connecting rod bearing grade table", and select it.
When Reusing Crankshaft and Connecting Rod
1. Measure each dimension of connecting rod large end inner diameter and crankshaft pin outer diameter.
2. Find the measured dimension in the Selective-fit Service Parts Table.
3. The procedure below is the same procedure as step 3 and later steps of "Using new connecting rod and
crankshaft".
A
: Top surface identifica-
tion mark
B
: Front mark
C
: Piston grade
JSBIA5774ZZ
Grade number (stamping)
1
2 (or no stamp*)
Cylinder bore inner diameter
79.700 – 79.710 (3.1378 – 3.1382)
79.710 – 79.720 (3.1382 – 3.1386)
Piston outer diameter
79.670 – 79.680 (3.1366 – 3.1370)
79.680 – 79.690 (3.1370 – 3.1374)
A
: Oil hole
B
: Management code
C
: Cylinder No.
D
: Large end grade
E
: Front mark
JPBIA4442ZZ
A
: No. 1 pin journal grade
B
: No. 2 pin journal grade
C
: No. 3 pin journal grade
D
: No. 4 pin journal grade
E
: No. 1 main journal grade
F
: No. 2 main journal grade
G : No. 3 main journal grade
H
: No. 4 main journal grade
I
: No. 5 main journal grade
PBIC3261J
Revision: November 2015
2016 JUKE
EM-306
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR EXCEPT FOR NISMO RS MODELS]
HOW TO SELECT PISTON AND BEARING
Selective-fit Service Parts Table
Connecting Rod Bearing Grade Table
Using Undersize Bearing
• If the standard oil clearance cannot be obtained by standard size connecting rod bearing, use undersize
(US) bearing.
• When using undersize bearing, install it, measure bearing inner diameter, and then grind crankshaft pin to
obtain specified oil clearance.
CAUTION:
PBIC4077E
Connecting rod bearing
grade table
: Refer to
EM-321, "Connecting Rod Bearing"
Available undersize bear-
ings
: Refer to
EM-321, "Connecting Rod Bearing"
Revision: November 2015
2016 JUKE
HOW TO SELECT PISTON AND BEARING
EM-307
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR EXCEPT FOR NISMO RS MODELS]
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When grinding crankshaft pin to use undersize bearing, never
damage fillet roll area [1.5 – 1.7 mm (0.059 – 0.067 in)] (A).
SELECTIVE-FIT MAIN BEARING
Using New Cylinder Block and Crankshaft
1. Find the bearing housing grade of cylinder block LH side (L) in
the row of the Selective-fit Service Parts Table.
• If there is a correction stamp, the symbol is the correct one.
2. Find the journal diameter grade of crankshaft front surface in the
column of the Selective-fit Service Parts Table.
3. Find the symbol at the intersection of the selected row and column in the Selective-fit Service Parts Table.
CAUTION:
The setting clearance is different between journal No. 1 and 4, and No. 2, 3, and 5. Use either 2
selective-fit service parts depending on the position.
4. Find the symbol at the intersection in "MAIN BEARING GRADE TABLE" and select it.
NOTE:
Set the upper/lower values for service parts as a set.
PBIC3263J
A
: Correction stamp position
B
: Standard stamp position
C
: Cylinder No. 1 bore grade
D
: Cylinder No. 2 bore grade
E
: Cylinder No. 3 bore grade
F
: Cylinder No. 4 bore grade
G
: No. 1 main bearing housing grade
H
: No. 2 main bearing housing grade
I
: No. 3 main bearing housing grade
J
: No. 4 main bearing housing grade
K
: No. 5 main bearing housing grade
: Engine front
PBIC3264J
A
: No. 1 pin journal grade
B
: No. 2 pin journal grade
C
: No. 3 pin journal grade
D
: No. 4 pin journal grade
E
: No. 1 main journal grade
F
: No. 2 main journal grade
G : No. 3 main journal grade
H
: No. 4 main journal grade
I
: No. 5 main journal grade
PBIC3261J
Revision: November 2015
2016 JUKE
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