I'm at a complete loss at this point.
1989 28' harris flote bote with 3.0l merc and a OMC king cobra outdrive all seems stock.
Driving forward there usually is no issue but when put into reverse most of the time I have to watch the temp gauge to see if there's any water to cool the engine.
If it gets hot then I drive forward and get some water moving through the engine.
Water pump has been changed (twice) everything works when the muffs are on.
I don't know what to look at next.
1989 28' harris flote bote with 3.0l merc and a OMC king cobra outdrive all seems stock.
Driving forward there usually is no issue but when put into reverse most of the time I have to watch the temp gauge to see if there's any water to cool the engine.
If it gets hot then I drive forward and get some water moving through the engine.
Water pump has been changed (twice) everything works when the muffs are on.
I don't know what to look at next.