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Maintenance
65
● Check the propeller shaft oil seal for dam-
age.
NOTE:
If the shear pin equipped: it is designed to
break if the propeller hits a hard underwater
obstacle to help protect the propeller and
drive mechanism. The propeller will then spin
freely on the shaft. If this happens, the shear
pin must be replaced.
EMU30660
Removing the propeller
EMU29194
Spline models
1. Straighten the cotter pin and pull it out us-
ing a pair of pliers.
2. Remove the propeller nut, washer, and
spacer (if equipped).
3. Remove the propeller and thrust washer.
EMU30670
Installing the Propeller
EMU29242
Spline models
WARNING
EWM00770
On counter rotation models, be sure to
use a propeller intended for counterclock-
wise rotation. These propellers are identi-
fied with the letter “L” after the size
indication on the propeller. Otherwise the
boat could move in the opposite direction
from that expected.
CAUTION:
ECM00340
● Be sure to install the thrust washer be-
fore installing the propeller, otherwise
the lower case and propeller boss could
be damaged.
● Be sure to use a new cotter pin and bend
the ends over securely. Otherwise the
propeller could come off during opera-
tion and be lost.
1. Apply Yamaha marine grease or a corro-
sion resistant grease to the propeller
shaft.
2. Install the thrust washer and propeller on
the propeller shaft.
3. Install the spacer and washer. Tighten
the propeller nut to the specified torque.
4. Align the propeller nut with the propeller
shaft hole. Insert a new cotter pin in the
hole and bend the cotter pin ends.
1. Cotter pin
2. Propeller nut
3. Washer
4. Spacer
5. Propeller
6. Thrust washer
Propeller nut tightening torque:
55.0 Nm (40.6 ft-lb) (5.61 kgf-m)
U69J17E0.book Page 65 Tuesday, March 7, 2006 10:00 AM