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Mercury MerCruiser MCM 4.3L EFI ALPHA - Draining Sterndrive

Mercury MerCruiser MCM 4.3L EFI ALPHA
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MAINTENANCE SERVICE MANUAL NUMBER 25
Page 1B-38 90-861328--1 NOVEMBER 1999
Draining Sterndrive
NOTICE
Predelivery Preparation Instructions Must Be Performed Before Delivering Boat To
The Product Owner.
1. On Bravo Drive Equipped Models: Insert a small wire (repeatedly) to make sure that
speedometer pitot tube, anode cavity vent hole and anode cavity drain passage are
unobstructed and drained.
71217
c
b
a
d
e
f
Typical
a-Speedometer Pitot Tube
b-Anode Cavity Vent Hole
c-Anode Cavity Drain Passage
d-Gear Housing Water Drain Hole (One Each - Port and Starboard)
e-Gear Housing Cavity Vent Hole
f-Gear Housing Cavity Drain Hole
2. On Alpha Drive Equipped Models: Insert a small wire (repeatedly) to make sure that
speedometer pitot tube, trim tab cavity vent hole and trim tab cavity drain passage are
unobstructed and drained.
71216
a
d
b
c
e
f
a-Speedometer Pitot Tube
b-Trim Tab Cavity Vent Hole
c-Trim Tab Cavity Drain Passage
d-Gear Housing Water Drain Hole (One Each - Port and Starboard)
e-Gear Housing Cavity Vent Hole
f-Gear Housing Cavity Drain Hole

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