Not ours, but that of another National. Another one of the blogs I look at quite often is that of Hadar, a replica Large Northwich built by Roger Fuller for Jo (hi Jo!) who often comments on here, and her husband Keith. It's an impressive blog, detailing the build, from the early stages right up to the launch - and beyond.
Hadar has a National DA2 engine, built, I think, in 1947, which Jo tells us about here. More recently though, since the launch, they've had some problems with it, culminating in the 'great engine strip down' - described in gruesome detail and with fantastic pictures.
I think I would be rather less than happy if I had purchased an engine which had been refurbished by one of the country's best known marine engineers and subsequently found silicone sealant in place of O-rings, among other things. Trouble is, words like 'refurbished' can mean so many different things to different people. Clearly (in this case at least) it doesn't mean completely stripped down, cleaned and inspected - but would you necessarily know that, if you were buying it?
Tales like this make me all the more glad that we went ahead and had Warrior's engine completely rebuilt, and not only that, but that it was done in such a way that we could monitor it at every stage.
I guess there may well be a lot more to Hadar's story than can be put on a blog, but thanks to Jo for telling the story so well, and best of luck with it from here on.