311
GEARCASE
WATER PUMP
12
lbs. (47 to 54 N·m). For adjustment, refer to Trim
Tab Adjustment on p. 77.
IMPORTANT: Standard rotation and counter
rotation trim tabs must not be interchanged. This
would result in inadequate cooling water supply to
the propeller hub.
Position the shift rod in the connector. Install and
torque shift rod screw to 60 to 84 in. lbs. (7 to 9.5
N·m).
IMPORTANT: During break-in period of a reas-
sembled gearcase, change the gearcase lubricant
between 10 to 20 hours of operation.
WATER PUMP
Disassembly
Rotate the driveshaft counterclockwise to unlock
the impeller cam. Remove the four impeller hous-
ing screws.
Slide the water pump off the driveshaft. Remove
the impeller drive cam, O-ring, impeller plate, and
gasket. Discard the gasket.
Remove all the parts from the housing.
Inspection
Check impeller for overheating, hub separation,
and other wear or damage.
Check liner and wear plate for scoring, distortion,
and impeller material transfer.
Inspect the housing for cracks or melting.
1. Trim tab screw
2. Index mark
COA3663
1. Shift rod screw 004241
WARNING
To prevent loss of operator control, check
for proper shifting operation and adjust, if
necessary.
1
2
1
1. Screws 31998
1. O-ring
2. Impeller plate
DSC02328
1
1
1
1
2
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