Mercury MerCruiser MCM 4.3L ALPHA Service Manual page 36

MAINTENANCE
DRAINING SEAWATER SECTION OF CLOSED COOLED (COOLANT) MODELS
Refer to "Precautions" in this section BEFORE proceeding.
IMPORTANT: Drain seawater section of closed cooling system only.
IMPORTANT: Engine must be as level as possible to ensure complete draining of
cooling system.
1. Remove drain plug from bottom of port and starboard exhaust manifolds.
2. Remove the drain plug from the water tube or Cool Fuel System cooler, as equipped.
Some Carbureted Models
NOTE: It may be necessary to lift, bend or lower hoses to allow water to drain completely
when hoses are disconnected.
Index
Page 1B-36
a - Drain Plug
a
a - Drain Plug
NOTICE
75018
Fuel Injected Models
SERVICE MANUAL NUMBER 25
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a
90-861328--1 NOVEMBER 1999
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