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

Builds, Repairs, Show Your Machines! => Technical Tips, Builds, and Help => Topic started by: Tony Bird on June 09, 2022, 08:21:56 am

Title: Re: Working on a model seam siren.
Post by: Tony Bird on June 09, 2022, 11:08:21 am

Hi Raphael,

Very interesting, I have yet to try mine on steam. When the video was taken the air pressure was about 30 psi.  When I get chance I will try it at various pressures on air and maybe on steam.

Take care Tony.

Title: Re: Working on a model seam siren.
Post by: Raphael on June 09, 2022, 10:15:49 am

Bonjour Tony,
Your siren has been made by Microcosm, I have two of them. I also have difficulties to make them play, especially at the beginning because I think that residues in the steam block the little moving part. In this case, WD540 is my friend.

Furthermore, they seem to need more than 40 PSI to start operating correctly and I settle my gas regulators to 30 PSI  :-[
https://www.youtube.com/watch?v=3di8bgw14EU

Other test at about 60 PSI on a larger boiler:
https://www.youtube.com/watch?v=4OCWvNvzTBo

When it is hot, it is better and on the bench, everything was almost correct:
https://www.youtube.com/watch?v=as0Ct_MQ9_8

As you can see/hear it, a lot of steam is needed to make them sing  ;)

Title: Working on a model seam siren.
Post by: Tony Bird on June 09, 2022, 08:21:56 am

Hi,

I was given a model steam siren that didn't work:

https://youtu.be/xxilmSMNQrk

Take care Tony.