In my previous post I left you about to grind out the inside of the Bulldog boiler to accommodate the Dukedog motor which is larger than the original K’s one.
You really do need to take a brave pill to do this because you need to leave the boiler shell pretty much wafer thin. Also there is a massive framing between the Belpaire box and the barrel which I presume is to ensure the box retains its shape while being cast. Fortunately having a boiler that’s been in one piece for about 30 years means it could take this punishment without too much drama. I’d advise anyone doing this project from a “new” K’s kit to use slow set epoxy and leave it for a good week to go rock hard before attempting the build.
You do create quite a lot of white metal flakes…
I used an end mill…
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