Working on a model seam siren.

• Working on a model seam siren.
  Posted by Tony Bird on 09 Jun, 2022 08:21
• Hi,
  
  I was given a model steam siren that didn't work:
  
  https://youtu.be/xxilmSMNQrk
  
  Take care Tony.
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• #1 Reply
  Posted by Raphael on 09 Jun, 2022 10:15
• 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 
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• #2 Reply
  Posted by Tony Bird on 09 Jun, 2022 11:08
• 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.
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