Engine bearer supports
I did cut the threads on the engine bearer supports. They will be drilled for the cotter keys next, and then then heat treated.
I used a 1/4 in. 28 thread die.
Here they are.
I did get a chance to set the Hisso in place and line up the radiator. But, I got so wrapped up in measuring the lower spider plate support, I forgot to take pictures of it!
Be patient - the fireplace is almost done.