Bremen Walking Beam Hot Air Pumping Engine

Started by Dave Otto · 12 replies · 1,765 views

Dave Otto
7 Jun 2026, 16:45
Hi Guys

Here is a short video of a Bremen hot air engine that my late friend Max built some years ago. I ended up with four engines from Max's collection and this is one of them. I just completed some repairs on the pump and was giving it a test run.
These castings are from Brad Smith and Max got them from me, I still have the other version of the Bremen engine castings that I will build some day.
YouTube in all there infinite wisdom decided that this video need to be a Short becasue it was taken in portrait mode. >:(

Thanks for looking,
Dave

https://www.youtube.com/watch?v=5-KcW24lHNU?feature=shareYouTube video
Last edit: 5 Oct 2026, 22:25 by Dave Otto
redhouseluv
Reply #1 · 7 Jun 2026, 17:07
What a fabulous engine it looks incredible and runs almost silently. I only noticed the writing across the beam when I watched it for the second time!  :popcorn: :ThumbsUp: :ThumbsUp:
Dave Otto
Reply #2 · 7 Jun 2026, 17:29
Thanks Sanjay,

About the only noise that it makes is the check valve plate in the pump piston. It is a small plastic disc that moves up and down each stroke, that is the rhythmic noise that you hear if you turn up the volume. The video makes it seem louder than it actually is.

Dave
krt2
Reply #3 · 7 Jun 2026, 19:34
That's a beautiful engine, Dave!  So smooth and quiet! :popcorn:

Of course, it's a short. After all, it's almost 3 minutes long...  :-\
I used to think shorts were any video in portrait mode, and less than a minute in length.  Clearly, the length is not a determining factor.  At least, not the one minute thing.  Maybe 3 minutes?  But I can say, I've never had it make a landscape video a short  :-\

Kim
crueby
Reply #4 · 7 Jun 2026, 20:33
Youtube defines a 'short' as anything thats tall/narrow, time does not enter into it (anymore anyway, I think it did originally). I find it annoying how they classify things.
dudeface
Reply #6 · 5 Oct 2026, 20:02
The video will appear as a normal video if you replace "shorts/" in the URL with "watch?v=".
Any vertical video under 3:00 is automatically a short.
crueby
Reply #7 · 5 Oct 2026, 21:12
Quote from: dudefaceThe video will appear as a normal video if you replace "shorts/" in the URL with "watch?v=".
Any vertical video under 3:00 is automatically a short.
Good to know!
Dave Otto
Reply #8 · 5 Oct 2026, 22:32
So I manually changed the URL in my first post and now it shows the video thumbnail, so that seemed to have worked. I guess there isn't a way to change it in the our YouTube channel?

Dave
dudeface
Reply #11 · 21 Oct 2026, 13:32
Quote from: Dave OttoSo I manually changed the URL in my first post and now it shows the video thumbnail, so that seemed to have worked. I guess there isn't a way to change it in the our YouTube channel?

Dave

Nope, the only way would be to re-upload it in a horizontal format.

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