Piston/Cylinder O Ring Fit for a Smooth Running Model Steam Engine.
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19 днів томуFree engine plans at myfordboy.blogspot.com
I belive the secret for a smooth runner is a good piston to cylinder O ring fit.
If the fit is too tight the engine may run perfectly well on compressed air but not on steam. Here I show my method. The piston is slightly undersize and does not touch the cylinder walls.
@johnwynne-qx6br 15 днів тому
Nice to see the axminster micro lathe used for the job. Great video and very useful.
@RetroSteamTech 16 днів тому
Brilliant 👍👍 I really liked using a drill bit to get the size for the O-ring groove, must remember that. Cheers, Alan.
@nobbysworkshop 17 днів тому
Thanks for sharing. I'll try silicon O-rings on my next engine. I haven't got to the cylinder and piston yet. Cheers Nobby
@GermanDarioCarte 17 днів тому
Cómo siempre, excelente trabajo. Saludos desde san Luis, argentina
@UCanAlso 17 днів тому
Excellent, I made a similar one, 😁
@jae878 17 днів тому
Very cool! Is there a ratio of the bore size to stroke length that works best? Or does that ratio change as the size of the engine increases? Thank you for sharing. Always enjoy watching.
@myfordboy 17 днів тому
I don't think so. The ports on the block need to be spaced apart enough to be covered as the cylinder oscillates and this could not be achived if the stroke were too short.
@garymucher4082 17 днів тому
Interesting. How long will that "O" ring last before it needs replaced?
@myfordboy 17 днів тому
A long time.
@Smallathe 17 днів тому
NICE! :)
@ianpendlebury9503 16 днів тому
What material is the O-ring made from? It doesn't look like the usual buna 'rubber'.
@myfordboy 16 днів тому
Silicon.
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