Mercury MCM Series Important Information Manual page 31

DRAINING SEAWATER SECTION OF CLOSED
COOLING (COOLANT) MODELS
MCM (Stern Drive) Models:
NOTICE
Refer to "Cold Weather or Extended
Storage," "Precautions," in this section,
BEFORE proceeding.
1. Engine must be as level as possible to ensure
complete draining of cooling system.
2. Remove drain plug from heat exchanger.
a - Heat Exchanger
b - Drain Plug
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.
Index
90-823224--2 796
a
70583
4. Remove hose from engine oil/power steering
fluid cooler as shown.
7.4L/454 Magnum Engine
a - Hose, Oil Cooler To Heat Exchanger
502 Magnum Engine
a - Hose, Oil Cooler To Heat Exchanger
a
70584
a
70585
MAINTENANCE - 1B-29