YAMAHA Marine 100A Manuel D'entretien page 462

LOWR
SHIMMING (REGULAR ROTATION MODELS)
(EXCEPT FOR USA AND CANADA)
6625
(2) Calculate the reverse gear shim thick-
ness (T2).
Reverse gear shim thickness
(T2) = M2 – 27.4 – 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 "27.95 mm", R is "+2", then
T2 = 27.95 – 27.4 – (+2)/100 mm
= 27.95 – 27.4 – 0.02 mm
= 0.53 mm
(3) Select the reverse 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
6-69
Rounded
numeral
or less
0.02 0.02
0.05 0.05
0.08 0.08
0.10 0.10
E