Florence Locomotive Works Posted June 5, 2020 Share Posted June 5, 2020 (edited) Hi everyone, I’ve just bought a nice old S.T. oscillating engine and I was wondering if anybody on here might have one and know what size the threads are on the steam inlet and outlet ports? I don’t yet have the engine, it’s on it’s way from across the pond, so I can’t measure them. But I’m guessing 1/4, 40 tpi. thanks, Douglas Edited June 5, 2020 by Florence Locomotive Works 2 Link to post Share on other sites More sharing options...
RMweb Gold Happy Hippo Posted June 8, 2020 RMweb Gold Share Posted June 8, 2020 Douglas, I know it's stating the obvious, but why don't you ask the vendor? They may very well know the fittings size or have a set of plug gauges with which to check the unit. I do know that the unit does use 5 and 7 BA studs, nuts and grub screws. The steam fittings are probably either 1/4 x 40 ME or possibly 3/16 x 40 ME. Be warned there is also a 1/4 x 32 ME thread, but it is not one I've ever used. Link to post Share on other sites More sharing options...
Florence Locomotive Works Posted June 8, 2020 Author Share Posted June 8, 2020 (edited) 7 hours ago, Happy Hippo said: Douglas, I know it's stating the obvious, but why don't you ask the vendor? They may very well know the fittings size or have a set of plug gauges with which to check the unit. I do know that the unit does use 5 and 7 BA studs, nuts and grub screws. The steam fittings are probably either 1/4 x 40 ME or possibly 3/16 x 40 ME. Be warned there is also a 1/4 x 32 ME thread, but it is not one I've ever used. Unfortunately it is the 1/4 x 32 thread, I later found out. And of course Stuart Models appear to be the only people on the planet who make fittings in that size. I forgot to post that I found the answer, but thank you though. Edited June 8, 2020 by Florence Locomotive Works Link to post Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now