Battery Storage; Power Package Recommissioning - Mercury MerCruiser Owner's Manual

1. Insert a small wire repeatedly to make sure that vent holes, water drain holes, and
passages are unobstructed and open.
d
a
The universal joint bellows may develop a set when stored in a raised or up position,
causing the bellows to fail when returned to service and allowing water to enter the boat.
Store the sterndrive in the full down position.
2. Lower the sterndrive unit to the full down/in position.
3. For additional assurance against freezing and rust, after draining, fill the cooling system
with propylene glycol mixed to the manufacturer's recommendation to protect engine
to the lowest temperature to which it will be exposed during freezing temperatures or
extended storage
IMPORTANT: Mercury MerCruiser requires that propylene glycol antifreeze, mixed to the
manufacturers instructions, be used in the seawater section of the cooling system for
freezing temperatures or extended storage. Make sure that the propylene glycol antifreeze
contains a rust inhibitor and is recommended for use in marine engines. Be certain to follow
the propylene glycol manufacturer's recommendations.

Battery Storage

Whenever the battery will be stored for an extended period of time, be sure the cells are
full of water and the battery is fully charged and in good operating condition. It should be
clean and free of leaks. Follow the battery manufacturer's instructions for storage.

Power Package Recommissioning

1. Ensure that all cooling system hoses are connected properly and hose clamps are tight.
Disconnecting or connecting the battery cables in the incorrect order can cause injury
from electrical shock or can damage the electrical system. Always disconnect the
negative (‑) battery cable first and connect it last.
90-899883295 JUNE 2008
e
b
Sterndrive Water Drain Holes
a - Speedometer pitot tube
b - Trim tab cavity vent hole
c - Trim tab cavity drain passage
d - Gear housing water drain hole (1
each ‑ port and starboard)
e - Gear housing cavity vent hole
f - Gear housing cavity drain hole
NOTICE
CAUTION
!
Section 6 - Storage
f
c
6146
Page 129