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Registered Cruiser
Join Date: May 2004
Location: Pursuing Happiness
Posts: 3,892
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Boat guys - Overheating problem
I have a 31' boat with twin 7.4 liter Mercs. The port side motor runs significantly hotter than the SB side. 160 deg VS 190. at a constant 3100 RPM
I have recently done the following:
cleaned out the intakes (they were pretty gummed up - engine ran 205 degrees prior to cleaning)
new impellers
cleaned risers
checked thermostat
Not sure what to do next.
Here is a picture of the old girl.
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87' Carmine Red Carrera - Keeper
82' Silver SC - Sold 79' Gran Prix White SC - Sold
05' Black C2S - Daily driver
I have never really completely understood anything.
Last edited by jorian; 06-24-2009 at 03:22 PM..
Reason: more info
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