Draining Instructions - Mercury HP 500 EFI Bravo XR/XZ/III User Manual

Mercury marine
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COLD WEATHER OR EXTENDED

Draining Instructions

DRAINING SEAWATER (RAW-WATER) COOLED MODELS
If boat is to remain in water after draining, seawater inlet hose
must be removed and plugged to prevent siphoning allowing
seawater to flow from the drain holes or removed hoses.
Seawater section of cooling system MUST BE COMPLETELY
drained for winter 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 cor-
rosion damage to engine.
1
Level engine to ensure complete draining of cooling system.
2
Remove the following drain plugs:
a -
Cylinder Block (port and starboard)
b -
Bottom of exhaust manifolds
c -
Fuel cooler (below engine front)
d -
From engine circulating hose
3
Repeatedly clean out drain holes using a stiff piece of wire. Do
this until entire system is drained.
4
Loosen hose clamps and remove the following hoses:
NOTE: Lift or bend hoses to allow water to drain completely.
e -
From rear of power steering cooler
f -
From inlet fitting of seawater pickup pump
After draining cooling system, install drain plugs (coat threads with
Perfect Seal) (Perfect Seal is not required on fuel cooler plug), recon-
nect hoses and tighten all hose clamps securely.
500 EFI Bravo
STORAGE
CAUTION
CAUTION
125

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