Re: destroyed impeller
Thanks, I did the back flush thing and even better than checking the input hoses, I replaced them with new. I really did not find any pieces, so they must have been ground up (there was a lot of 'black dust' in the intake water pump). She seems to be good as the Yanmar starts right up and runs just fine. The oil and the coolant look good too. The scale buildup did not look too bad so I put that off until another day. We have a Moonlight cruise coming up this week and I wanted to get everything back together and tested as soon as possible. So far so good.