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Mercury MerCruiser MCM 502 Mag MPI

Mercury MerCruiser MCM 502 Mag MPI
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INSTRUMENTATION SERVICE MANUAL NUMBER 23
Page 4D-10 90-861326--1 MARCH 1999
Water Temperature
DUAL STATION SENDER IDENTIFICATION
Sender will have 362-BC stamped on hex.
REMOVAL
1. Drain coolant from closed cooling system into a suitable container as outlined in
SECTION 6B.
2. Remove TAN wire from temperature sender.
NOTE: Hoses are shown removed for clarity.
3. Remove temperature sender.
b
a
a-Water Temperature Sender
b-Thermostat Housing
TESTING
1. Connect an ohmmeter between temperature sender terminal (+) and hex (case) for
ground (–) as shown.
72768
a
b
a-Ohmmeter Leads
b-Water Temperature Sender
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