Mercury Alpha

GASOLINE STERNDRIVE INSTALLATION MANUAL
Page 78 of 137 90-860172011
IMPORTANT: Rubber gasket must be properly positioned in bell housing bore before
installing drive unit or water may leak into boat.
7. Alpha Models: Ensure that rubber gasket and water passage O-ring are properly
positioned in bell housing.
75531
a
b
a-Rubber Gasket
b-Water Passage O-ring
8. Coat sterndrive unit pilot, U-joint O-rings and drive shaft splines.
70114
a
b
c
b
A
A
A
A
a-Sterndrive Unit Pilot
b-O-rings
c-Splines
Description
Where Used Part Number
Drive Unit Pilot
A Engine Coupler Spline Grease
U-Joint O-rings
92-816391A4
Drive Shaft Splines