Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Quote from: txlabman on February 16, 2022, 02:29:19 pm

One last question:

Do you know the thread of the bolt that in in the whistle on the back side?

I'm pretty sure it's 1/4-20. I think Bruce ("St. Paul Steam") restored a B30, and was able to connect a pressure gauge to that port, by way of some kind of adapter. Perhaps he will chime in.

Paula