Infiniti F50. Manual - part 552
CYLINDER BLOCK
EM-95
C
D
E
F
G
H
I
J
K
L
M
A
EM
Method of Using Plastigauge
●
Remove oil and dust on the crankshaft pin 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.
●
Install the connecting rod bearings to the connecting rod and the
connecting rod bearing cap, and tighten the connecting rod nut
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 repair limit is same as that described in “Method of
Measurement”.
OIL CLEARANCE OF MAIN BEARING
Method of Measurement
●
Install the main bearings to the cylinder block and main bearing cap. Measure the main bearing inner
diameter with the bearing cap bolt tightened to the specified torque. Refer to
.
(Oil clearance) = (Inner diameter of main bearing) – (Outer diameter of crankshaft journal)
●
If the measured value exceeds the repair limit, select main bearings referring to the main bearing inner
diameter and crankshaft journal outer diameter, so that the oil clearance satisfies the standard. Refer to
EM-84, "HOW TO SELECT MAIN BEARING"
.
Method of Using Plastigage
●
Remove 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
●
Install the main bearings to the cylinder block and main bearing
cap, and 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 repair limit is same as that described in “Method of
Measurement”.
SBIA0409E
Standard:
No. 1 and 5 journals
: 0.001 - 0.011 mm (0.0004 - 0.0004 in)
No. 2, 3, and 4 journals
: 0.007 - 0.017 mm (0.0003 - 0.0007 in)
Limit:
No.1 and 5 journals
: 0.021 mm (0.0008 in)
No. 2, 3, and 4 journals
: 0.027 mm (0.0011 in)
SBIA0410E