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Robinson Hot Air Engine.

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Stilldrillin:
This arrived the other day. I believe it's a Poly Models 1/3 scale......







Very nicely machined and first off assembled/ unfinished. .....*(Edit, mid November...... Ignore that last sentence!).*.....

Complete with broken foot, and slightly bent crank. Which I did know about. No problem!  :thumbup:

Guess it's been dropped.......  :doh:





Slipped a small piece of esbit under...... We have a runner!  :clap:





Do I fill the rusty hole with water, and keep it topped up?




Some form of instructions/ ideas would be appreciated. There's next to no mention of these engines on HMEM!  ::)

NickG:
Nice looking engine,

Same as any hot air engine it's got a hot end and cold end. Looks like the top of the displacement cylinder does have a water jacket so yeah fill it with water. Looks like there's a drain on rear.

I would apply light oil to all joints, a drop on the displacer rod and oil the piston too.

Nick

madjackghengis:
Well Still, that is a nice looking engine, a little tlc, and a couple of toes and half a foot, a spot of paint, and you've got a nice running display.  Can't say's I've ever seen one of those before, but it is interesting looking in its intersecting linkages, you ought to post a video of it, so we can hear it, too.  Very nice if I say so myself :bugeye: :thumbup: mad jack

Stilldrillin:
Nick, Jack,
Thanks for your comments. I've been into the shed, with camera...... But!  ::)

With water, it's not as happy as was..........





Lurched to a standstill..... I had a closer look........ Water from shaft, and piston.  ::)





I didn't intend running it as is. It was bought to set up properly as an autumn project.

I would like to see a pic of component pieces/ whats inside, if anyone can help. Before I start having to prise the Hylomar joints apart......  :scratch:

David D

Stilldrillin:
Jack,
Here's a vid of the real thing, at Stew's favourite Museum......

I saw this engine, and thought, hmmm, maybe, I could.....  :scratch:





Then a member of my other forum posted this, and I realised castings were available......

http://modelsteam.myfreeforum.org/about32786

Then, when this one showed up, on Ebay. I thought it would save on machining time.  :lol:

All within two weeks!  :thumbup:

David D

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