Nissan Juke F15. Manual — part 645
EM-134
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR FOR NISMO RS MODELS]
HOW TO SELECT PISTON AND BEARING
3. Select piston of the same grade.
PISTON SELECTION TABLE
Unit: mm (in)
NOTE:
Piston is available together with piston pin as an assembly.
Connecting Rod Bearing
INFOID:0000000012197314
WHEN NEW CONNECTING ROD AND CRANKSHAFT ARE USED
1. Apply connecting rod big end diameter grade stamped on con-
necting rod side face to the row in the “Connecting Rod Bearing
Selection Table”.
2. Apply crankshaft pin journal diameter grade stamped on crank-
shaft front side to the column in the “Connecting Rod Bearing
Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Connecting Rod Bearing Selection
Table”.
4. Apply the symbol obtained to the “Connecting Rod Bearing Grade Table” to select connecting rod bearing.
WHEN CONNECTING ROD AND CRANKSHAFT ARE REUSED
1. Measure the dimensions of the connecting rod big end diameter and crankshaft pin journal diameter indi-
vidually. Refer to
A
: Identification code
B
: Piston grade number
C
: Front mark
D
: Sub grade number
JPBIA4439ZZ
Grade number (Mark)
1
2 [or no mark (piston only)]
Cylinder bore Inner diameter
79.700 - 79.710 (3.1378 - 3.1382)
79.710 - 79.720 (3.1382 - 3.1386)
Piston skirt 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 number
D
: Big end diameter grade
E
: Front mark
JPBIA4442ZZ
A
: No. 1 pin journal diameter grade
B
: No. 2 pin journal diameter grade
C
: No. 3 pin journal diameter grade
D
: No. 4 pin journal diameter grade
E
: No. 1 main journal diameter grade
F
: No. 2 main journal diameter grade
G
: No. 3 main journal diameter grade
H
: No. 4 main journal diameter grade
I
: No. 5 main journal diameter grade
PBIC3261J
HOW TO SELECT PISTON AND BEARING
EM-135
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR FOR NISMO RS MODELS]
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
2. Apply the measured dimension to the “Connecting Rod Bearing Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Connecting Rod Bearing Selection
Table”.
4. Apply the symbol obtained to the “Connecting Rod Bearing Grade Table” to select connecting rod bearing.
CONNECTING ROD BEARING SELECTION TABLE
CONNECTING ROD BEARING GRADE TABLE
UNDERSIZE BEARINGS USAGE GUIDE
• When the specified connecting rod bearing oil clearance is not obtained with standard size connecting rod
bearings, use undersize (US) bearings.
• When using undersize (US) bearing, measure the connecting rod bearing inner diameter with bearing
installed, and grind the crankshaft pin so that the connecting rod bearing oil clearance satisfies the standard.
CAUTION:
PBIC4077E
Connecting rod bearing grade table
: Refer to
EM-148, "Connecting Rod Bearing"
.
EM-136
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR FOR NISMO RS MODELS]
HOW TO SELECT PISTON AND BEARING
In grinding crankshaft pin to use undersize bearings, keep the
fillet R [1.5 - 1.7 mm (0.059 - 0.067 in)] (A).
Main Bearing
INFOID:0000000012197315
WHEN NEW CYLINDER BLOCK AND CRANKSHAFT ARE USED
1. “Main Bearing Selection Table” rows correspond to main bearing
housing grade on rear left side of cylinder block (L).
• If there is a correction stamp mark on cylinder block, use it as
a correct reference.
2. Apply main journal diameter grade stamped on crankshaft front
side to column in the “Main Bearing Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Main Bearing Selection Table”.
CAUTION:
There are two main bearing selection tables. One is for No. 1, 4, and 5 journals and the other is for
No. 2 and 3 journals. Make certain to use the appropriate table. This is due to differences in the
specified clearances.
Bearing undersize table
: Refer to
EM-148, "Connecting Rod Bearing"
PBIC3263J
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
A
: No. 1 pin journal diameter grade
B
: No. 2 pin journal diameter grade
C
: No. 3 pin journal diameter grade
D
: No. 4 pin journal diameter grade
E
: No. 1 main journal diameter grade
F
: No. 2 main journal diameter grade
G
: No. 3 main journal diameter grade
H
: No. 4 main journal diameter grade
I
: No. 5 main journal diameter grade
PBIC3261J
HOW TO SELECT PISTON AND BEARING
EM-137
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR FOR NISMO RS MODELS]
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
4. Apply the symbol obtained to the “Main Bearing Grade Table” to select main bearing.
NOTE:
Service part is available as a set of both upper and lower.
WHEN CYLINDER BLOCK AND CRANKSHAFT ARE REUSED
1. Measure the dimensions of the cylinder block main bearing housing inner diameter and crankshaft main
journal diameter individually. Refer to
2. Apply the measured dimension to the “Main Bearing Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Main Bearing Selection Table”.
CAUTION:
There are two main bearing selection tables. One is for No. 1, 4, and 5 journals and the other is for
No. 2 and 3 journals. Make certain to use the appropriate table. This is due to differences in the
specified clearances.
4. Apply the symbol obtained to the “Main Bearing Grade Table” to select main bearing.
NOTE:
Service part is available as a set of both upper and lower.
MAIN BEARING SELECTION TABLE (No. 1, 4, AND 5 JOURNAL)
PBIC4078E
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