YAMAHA Marine 100A Manuel D'entretien page 494

LOWR
SHIMMING (COUNTER ROTATION MODELS)
(EXCEPT FOR USA AND CANADA)
6625
(2) Calculate the forward gear shim thick-
ness (T2).
Forward gear shim thickness
(T2) = M2 – 28.1 – R/100
NOTE:
• "R" is the deviation of the lower case
dimension from standard. It is stamped
on the trim tab mounting surface of the
lower case in 0.01-mm units. If the "R"
mark is missing or unreadable, assume a
"R" value of "0", and check the backlash
when the unit is assembled.
• If the "R" mark is negative (–), then sub-
tract the "R" value from the measure-
ment.
Example:
If M2 is "29.10 mm", R is "+2", then
T2 = 29.10 – 28.1 – (+2)/100 mm
= 29.10 – 28.1 – 0.02 mm
= 0.98 mm
(3) Select the forward gear shim(s) (T2).
Calculated numeral
at 1/100th place
More than
0.00
0.02
0.05
0.08
Available shim thickness
0.10, 0.12, 0.15, 0.18, 0.30, 0.40
and 0.50 mm
6-85
Rounded
numeral
or less
0.02 0.02
0.05 0.05
0.08 0.08
0.10 0.10
E