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CA253
DRAINING INSTRUCTIONS
Draining Seawater (Raw-water) Cooled
Models
If boat is to remain in water after draining, seawater inlet hose must be re-
moved and plugged to prevent a siphoning action that may occur, allowing
seawater to flow from the drain holes or removed hoses.
Seawater section of cooling system MUST BE COMPLETELY drained for win-
ter storage, or immediately after cold weather use, if the possibility of freezing
temperatures exist. Failure to comply may result in trapped water causing
freeze and/or corrosion damage to engine.
1
Ensure engine is as level as possible to ensure complete draining
of cooling system.
2
Remove drain plugs from cylinder block as follows:
A 5.0L/5.7L Models (Port & Starboard) - from cylinder block.
B 350 Magnum Model (Port Side) -from cylinder block.
C 350 Magnum Model (Starboard Side) - from Y-fitting. Do not dis-
turb the Y-fitting when removing the drain plug. There is an ignition
control "Knock Sensor" in the upper hole of the fitting. This sensor
must not be loosened or removed. It is tightened to a critical speci-
fication at the factory.
3
Remove drain plugs from bottom of exhaust manifolds (port and
stbd).
4
Repeatedly clean out drain holes using a stiff piece of wire. Do this
until entire system is drained.
Alpha V8
!
CAUTION
!
CAUTION
97
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