merc 3.0 135 hp i/o 1997

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pubber

Cadet
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Jun 1, 2002
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Merc 3.0 temp guage reads all the way hot most of the time.Needle flickers back and forth,between 160 and past 240.Water is spraying out the back. Where is the temp sending unit located? Any tricks?
 

Boatist

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Apr 22, 2002
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Re: merc 3.0 135 hp i/o 1997

I belive you will find it on head on the starboard side. Check the wireing on the back of the guage also.
 
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