Engine Mechanical: 1D-90
3) Measure the crankshaft O.D. with the special tool. If
any of the measurements are out of specification,
replace the crankshaft.
Crankshaft journal O.D. specification
Special tool
(A): 09900–20203 (Micrometer (1/100 mm,
50 – 75 mm))
4) Select the specified bearings from the bearing
selection table.
NOTE
Upper and lower crankshaft journal bearings
are the same.
CAUTION
!
The bearings should be replaced as a set.
Bearing selection table
Bearing thickness specification
Crankshaft Thrust Clearance Inspection and
Selection
B822H11406030
Refer to “Engine Bottom Side Disassembly (Page 1D-
59)”.
Refer to “Engine Bottom Side Assembly (Page 1D-68)”.
Inspection
1) With the crankshaft and thrust bearing inserted in the
upper crankcase.
2) Measure the thrust clearance “a” by using the
thickness gauge. If the thrust clearance exceeds the
standard range, adjust the thrust clearance.
NOTE
Pull the crankshaft to the right (Primary
driven gear side) so that there is no
clearance on the thrust bearing.
Special tool
(A): 09900–20803 (Thickness gauge)
Crankshaft thrust clearance “a”
Standard: 0.100 – 0.200 mm (0.0039 – 0.0078 in)
Code “B” O.D. specification
A
54.994 – 55.000 mm
(2.1651 – 2.1654 in)
B
54.988 – 54.994 mm
(2.1649 – 2.1651 in)
C
54.982 – 54.988 mm
(2.1646 – 2.1649 in)
Color “C” (Part No.) Thickness
Green
(12229-48G10-0A0)
1.992 – 1.995 mm
(0.0784 – 0.0785 in)
Black
(12229-48G10-0B0)
1.995 – 1.998 mm
(0.0785 – 0.0787 in)
Brown
(12229-48G10-0C0)
1.998 – 2.001 mm
(0.0787 – 0.0788 in)
Yellow
(12229-48G10-0D0)
2.001 – 2.004 mm
(0.0788 – 0.0789 in)
(A)
I822H1140306-01
Crankcase
I.D. “A”
Code
A
B
A
Green
Black
B
Black
Brown
C
Brown
Yellow
C
Brown Yellow Blue
Crankshaft O.D. “B”
I822H1140307-01
Blue
(12229-48G10-0E0)
2.004 – 2.007 mm
(0.0789 – 0.0790 in)
“C”: Color code
Color “C” (Part No.) Thickness
“C”
I822H1140308-02
(A)
“a”
I822H1140309-07
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