KiSC issued 09, 2007 A
(A)
Crank pin for undersized bearing
(a) 3.SR
±
0.2mm (b) Oil hole must be 1 to 1.5Rmm
(0.1378R
±
0.0079
in.)
(0.0394
to
0.0591R
in.)
Check ing Oi
l
Clearance between Crank Pi ns
and Crank Pin Bearings
1)
Paste a press gauge with grease on the c rank pin bearing.
2)
Tighten the connecting rod onto the crank pin to the
specified torque
(36.3
to
41.2
N-m.,
3.7
to
4.2
kgf,m.,
26.8 to 30.4 lb.ft.)
3)
Remove the large end cap carefu Ily, and measure the
depression of the press gauge with a sheet of gauge (paper) .
4)
If the standard-size bearing cannot be employed due to
exessive wear of the crank pin, employ undersize bearing.
For undersize bearing use, follow the precautions noted
below.
1.
Cut corner radius of the crank pin to precisely
3.5R±
0.2
mm ( 0.1378R±0.0079 in.)
2.
Be sure to chamfer the oil hole circumference with an
oil stone.
3.
The crank pin must be fine-finished to higher than
'vVVv
( 0.4S) .
0071 F005
(cl
3.SR
±
0.2mm
(0.1378R
±
0.0079
in.)
( Note for measu ri ng)
1)
Fasten the cran kshaft so that it does not tu rn.
2)
Do not
i
nsert the press gauge
i
nto the cran k pin hole.
3)
Crank pi n metal measuring poi nts are shown below:
(B)
Crank pin measuring points
COJ 9F062
66
Model
Undersize Code Numbe
01102-8
01302-B
V1502-B
V1702-B
Part Name
··-
·
-
·
---
15221-2297-1
Crank pin bearing 0.2 minus
15221-2298-1
Crank
in bearin
0.4 minus
15471-2298-1
Crank
in bearin
0.4 minus
Crank pin dia. C
Bearing Mark
(Shown in Fig.)
43.759 to 43.775 mm
1.7228 to 1.7234 in.
43.559 to 43.575 mm
1.7149 to 1.7156 in.
I
43.759 to 43.775 mm
1.7228 to 1.7234 in.
43.559 to 43
575 mm
0.2 mm
0.0079 in.
0.4 mm
0.0157 in.
0.2 mm
0.0079 in.
0.4 mm
0.0157 in.
020
us
040
us
020
us
040
us
-·-
15471-2297-1
Crank
in bearin
0.2 minus
D1402-B
V1902-B
·-·"""'"'''"""'
....
_
''
'
·
--·-"-'""'·
--
-
-···
--·-
1.7149 to 1.7156 in.
0.035 to 0.093 mm
0.0014 to 0.0037
·-
--
--·----<
0.20 mm
0.0079 in.
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