Your 100% right on that .
I have had it out but never thought to look.
It would be very hard to establish how it works , unless you had it out of water or taken apart.
They have started talking about a possible
keel
Cooler but to be honest its had so many maybes, and other ideas that lm back to square one on what l have.
When l fine out 100% my next question was how to
antifreeze. That in my
books cannot be answered unless you know what you have.
The two large hoses 1 1/2 inch heading straight to floor must be some indicator for a
mechanic.
One theory was a possible keel cooler welded to sub frame. If true surely the
antifreeze in the standard engine would be part of that loop and no special anti freezing would be required other that exhaust
cooling belt driven
pump circuit.
I see on
photo attached two small pipes go out to hot water tank , can't remember exactly from where they leave from.. see
photo. I think one leaves from main engine the other from the grey think with
paint peeling