6A-16 - SEAWATER COOLING MODELS 90-823225--1 1096
3. Crank engine over SLIGHTLY with starter motor
to purge any water trapped in seawater pickup
pump. DO NOT ALLOW ENGINE TO START.
4. After cooling system has been drained complete-
ly, install and tighten securely all petcocks or
drain plugs. Reconnect all hoses and tighten all
hose clamps securely.
MIE (Inboard) Models
NOTICE
Refer to “Draining Precautions,” in this
section, BEFORE proceeding.
1. Check that engine is as level as possible or front
of engine slightly higher to properly drain cooling
system.
2. Remove petcocks or plugs (port and starboard)
from cylinder block.
72586
Starboard Side Shown (Port Similar)
a - Petcock (or Plug)
a
3. Repeatedly clean out drain holes using a stiff
piece of wire. Do this until entire system is
drained.
NOTE: It may be necessary to lift, bend, or lower
hoses to allow water to drain completely when hoses
are disconnected.
4. Remove hose or drain plug from bottom of port
and starboard manifolds.
NOTE: Some exhaust manifolds have draincock(s)
or plug(s) on the end(s). For those that don’t, suffi-
cient draining of manifolds will occur when exhaust
manifold-to-thermostat housing hoses are removed
if engine is level.
72586
a
a - Bottom Hose Exhaust Manifold To Thermostat Housing
a
72586
b
a - Drain Plug Located In Exhaust Manifold Elbow
b - Later Models Are Equipped With Thumbscrew Drain Plug.
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