Credit for this information goes to Markus Ritter owner of a Mariner 36 s/v Sankaty check out his website at http://sankaty.homestead.com
I have found some brass 90 deg elbows that may fit into the pipe thread of the engine so that the “From WH”line can stay below the “to WH”line to make it easier to fill the water heater when changing coolant. I may install them next winter,but so far everything is working OK and our continuous speed is 15% faster as we are no longer cooling system limited. Click here for curves showing temperature after one hour runs a various speeds. Check out Racor’s comments on blow by.