Hi Bruce, I remember meeting you at Newport shipyard about five years ago when I was there for the fall trying to get Piscator ready to sail south after the paint job at the Shipyard. Finally got everything together later the following spring in Florida. After a couple years of the Bahamas and New England we are now in Portugal ready to sail the Med this summer, Spain, France and Italy.
When you clean the heat exchanger do you find enough stuff that you feel it is worth it? I am curious as I have never had mine off in four years (Yanmar 3GM) and after reading your post feel maybe I should take a look.