Hi to all.
I 've got a 37 c 1981 with 2 DD325hp that sound very well except for a new problem of over heating temperature ( left 190 and right 195/198 ).
I don't think it could be a problem with headexchanger obstruction as I clean them perfectly last year.
Now the surprise is that the coolant blue became grey/black.
I put a little bit of liquid into a Coke bottle and after 5 hour the surprise: 1/4 black mud and 3/4 return to be perfect blue coolant.....
I desume that all coolant way into the motor are obstructed of mud.
What do you think about ?? Help me !!!!!!!!!!!!!!!
an italian hatteras in love.
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Thread: "black" coolant anti-freeze
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04-15-2009 12:28 PM #1Senior Member
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- Apr 2009
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"black" coolant anti-freeze