wow.
Well, at 780 hrs in one lake in 7 yrs, I've used three impellers (third was 10hrs ago;) None were cracked, I have both the two I pulled out and I'd put either back in in a pinch. There is a little, but not significant corrosion in my thermostat housing, I pull it every winter and drain that passage under the intake manifold.
I think that the excessive corrosion has to do with the water properties where you run the boat. Some western lakes used to be inland oceans, i.e. salt water, and my east coast man made lake used to be a mountain valley 30 yrs ago. Different deal. I think I'd want a closed loop cooling system out there.
The fresh water cooling system (closed loop) is not rocket surgery, its a tank with a coil in it, a couple of fittings, some hose, etc. And, directions with pictures that have been posted for years on this site. I doubt there are significant differences between the V drive and D drive systems, I think even the tank mounts in the same place.
Capt. Rick, to clarify: If someone orders a cooling kit for a V drive or D drive, can they get it? Or, are just pieces parts available?
