4 - 94
ENG
MIDDLE GEAR
g
= a numeral (usually a decimal number) on
the middle driven pinion gear is either
added to or subtracted from “80.5”.
h
= a numeral (usually a decimal number) on
the right crankcase specifies a thickness
of “97.26”.
i
= a numeral (usually a decimal number) on
the left crankcase specifies a thickness of
“1.66”.
Example:
1) If the bearing housing is marked “–06”,
......
e
is 75.94.
2) If the driven pinion gear is marked “+0”,
......
f
is 60.00.
3) If the driven pinion gear is marked “–13”,
......
g
is 80.37.
4) If the crankcase (right) is marked “97.29”,
......
h
is 97.29.
5) If the crankcase (left) is marked “1.67”,
......
i
is 1.67.
6) Therefore, the shim thickness is 0.64 mm.
B = 75.94 – 60.00 + 80.37 – 97.29
+ 1.67– 0.05
= 0.64
7) Round off hundredths digit and select
appropriate shim(s).
In the example above, the calculated shim
thickness is 0.64 mm. The chart instructs
you, however, to round off 4 to 5.
Shims are supplied in the following thickness.
▲▲▲
▲
▲ ▲▲▲
▲
▲ ▲▲▲
▲
▲ ▲▲▲
▲
▲ ▲▲▲
▲
▲ ▲▲▲
▲
▲▲▲
Hundredths
Round value
0, 1, 2
0
3, 4, 5, 6, 7
5
8, 9
10
Middle drive pinion gear shim
Thickness (mm)
0.10
0.40
0.15
0.50
0.20
0.60
0.30
www.midwestmanuals.com
