Nissan Juke F15. Instruction — part 685
EM-294
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR EXCEPT FOR NISMO RS MODELS]
CYLINDER BLOCK
Check tightening angle with an angle wrench [SST:
KV10112100 (BT8653-A)] A or a protractor. Never estimate
tightening angle visually.
• Check that the crankshaft rotates smoothly by hand after tight-
ening the main bearing cap bolt.
• Check the connecting rod side clearance. Refer to
.
14. Install the oil pan (upper). Refer to
NOTE:
Install the rear oil seal after installing the oil pan (upper).
15. Install rear oil seal. Refer to
EM-271, "REAR OIL SEAL : Removal and Installation"
16. Install knock sensor (1) in the direction shown in the figure.
CAUTION:
• Never subject parts to impact. If any impact is applied,
replace it.
• Check that no foreign material adheres to cylinder block
and knock sensor mounting surfaces.
• Install connectors so that they are positioned toward
engine rear.
• Be sure to use specified bolts.
• Never hold connector while tightening bolts.
• Never allow installed sensor connector to interfere with other parts.
17. Assemble in the reverse order of disassembly.
Inspection
INFOID:0000000012197446
INSPECTION AFTER DISASSEMBLY
Crankshaft Side Clearance
• Move crankshaft to front or rear, and measure thrust bearing-to-
crank arm clearance using a dial indicator (A).
• If the limit is exceeded, replace the thrust bearing and then mea-
sure again. Replace the crankshaft if it still exceeds the limit.
- When replacing the crankshaft, refer to
and select the main bearing and connecting rod bear-
ing.
Connecting Rod Side Clearance
PBIC3245J
A
: Left side of cylinder block
: Engine front
JPBIA5163ZZ
Stan
dard
: Refer to
Limit
JPBIA4436ZZ
CYLINDER BLOCK
EM-295
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR EXCEPT FOR NISMO RS MODELS]
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
• Measure connecting rod-to-crank arm side clearance using a
feeler gauge (A).
• If the limit is exceeded, replace the connecting rod, and then mea-
sure again. Replace the crankshaft if it still exceeds the limit.
- When replacing the crankshaft, refer to
and select the main bearing and connecting rod bear-
ing.
Piston-to-piston Pin Clearance
Piston pin hole inner diameter
• Measure inner diameter of piston pin hole using an inside
micrometer (A).
Piston pin outer diameter
• Measure piston pin outer diameter using a micrometer (A).
How to calculate piston-to-piston pin clearance
• Calculate the piston pin clearance using the following formula.
(Piston pin clearance) = (Piston pin hole inner diameter) - (Piston pin outer diameter)
• If clearance exceeds the standard, replace piston and piston pin assembly.
- When replacing piston and piston assembly, refer to
EM-304, "Selective-fit Service Parts"
and select the cor-
rect parts.
NOTE:
Piston and piston pin are service parts for assembly.
Piston Ring Side Clearance
Stan
dard
: Refer to
Limit
JPBIA4437ZZ
Stan
dard
: Refer to
PBIC3265J
Stan
dard
: Refer to
PBIC3266J
Stan
dard
: Refer to
EM-296
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR EXCEPT FOR NISMO RS MODELS]
CYLINDER BLOCK
• Measure piston ring-to-piston ring groove clearance using a feeler
gauge (A).
• Replace piston ring if the limit is exceeded (the standard for oil
ring).
• Measure the clearance again. If it still exceeds the limit (the stan-
dard for oil ring), replace piston.
- When replacing the piston, refer to
EM-304, "Selective-fit Service
and select the correct part.
Piston Ring End Gap
• Check that the cylinder bore inner diameter is within the standard. Refer to
• Apply oil to the piston (1) and the piston ring (2). Using the piston,
press the piston ring into the cylinder center position (B), and then
measure the end gap.
• If the limit is exceeded, replace piston rings.
Connecting Rod Bend and Torsion
• Check connecting rod bend and torsion with a connecting rod
alignment tool.
• Replace the connecting rod assembly if it exceeds the limit.
Connecting Rod Large End Diameter
Stan
dard
: Refer to
Limit
PBIC3280J
A
: Press in.
C
: Feeler gauge
Stan
dard
: Refer to
Limit
PBIC3267J
A
: Bend
B
: Twist
C
: Feeler gauge
Limit
: Refer to
PBIC3268J
CYLINDER BLOCK
EM-297
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR EXCEPT FOR NISMO RS MODELS]
C
D
E
F
G
H
I
J
K
L
M
A
EM
N
P
O
• Without installing connecting rod bearing, install connecting rod
cap (1) and tighten connecting rod bolt to the specified torque.
Measure connecting rod large end diameter with an inside
micrometer.
- For the connecting rod bolt tightening procedure, refer to
.
• Replace the connecting rod assembly if it is outside the standard.
- When replacing the connecting rod, refer to
EM-304, "Selective-fit Service Parts"
, and select the connecting
rod bearing.
Connecting Rod Small End Clearance
Connecting rod small end inner diameter
• Measure inner diameter of connecting rod small end using an
inside micrometer (A).
Piston pin outer diameter
• Measure piston pin outer diameter using a micrometer (A).
Calculating connecting rod small end clearance
• Calculate the connecting rod small end clearance using the following formula.
(Connecting rod small end clearance) = (connecting rod small end inner diameter) - (piston pin outer diame-
ter)
• Refer to each part standard and replace connecting rod and/or piston and piston pin assembly if the limit is
exceeded.
- When replacing piston and piston assembly, refer to
EM-304, "Selective-fit Service Parts"
and select the cor-
rect parts.
2
: Connecting rod
A : Image
B
: Inner diameter
measurement di-
rection
Stan
dard
: Refer to
PBIC3269J
Stan
dard
: Refer to
PBIC3270J
Stan
dard
: Refer to
PBIC3266J
Stan
dard
: Refer to
Limit
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст