Yamaha 40V Service Manual page 139

LOWR
SHIMMING
NOTE:
Find the average of the measurement (M).
P is the deviation of the lower case dimen-
sion from standard. It is stamped on the
trim tab mounting surface of the lower
case in 0.01 mm units. If the P mark is
missing or unreadable, assume a P mark
of "0", and check the backlash when the
unit is assembled.
If the P value is negative (–), then subtract
the P value from the measurement.
Example:
If M is "11.70 mm" and P mark is "+5",
then T3 = 11.70 mm – 11.30 + (+5)/100
= 0.40 + 0.05 mm
= 0.45 mm
If M is "11.70 mm" and P mark is "–5",
then T3 = 11.70 mm – 11.30 + (–5)/100
= 0.40 – 0.05 mm
= 0.35 mm
5. Select:
Pinion gear shim
Calculated numeral
at 1/100th place
more than
0.00
0.02
0.05
0.08
Available shim thickness:
0.05, 0.08, 0.12, 0.30 and 0.50 mm
Example:
If T3 is "0.44 mm",
then pinion gear shim = 0.45 mm
If T3 is "0.39 mm",
then pinion gear shim = 0.40 mm
6-24
Rounded
numeral
or less
0.02 0.02
0.05 0.05
0.08 0.08
0.10 0.10
E