Gallery, Projects and General > How do I??

to line or not?

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stirling lad:
Hi gents,, I'm  writing to ask you guys what I should do with this cylinder and piston next? both are cast iron which I'm told is an excellent self lubricator, but from build logs I've read about flame-licker engines I'm concerned that rust might be a problem,,,
it's for a Heinrici hot air engine. So, my question is am I better to line the cylinder with a stainless steel tube or am I over thinking this??
,,,mike...
   

appletree:
With flame licker engines the issue is the condensation from the flame entering the engine as it is not a closed cycle like the Stirling. I would have thought cast iron mould be fine, out of interest what engine is it, is it a kit?

stirling lad:
Its a casting set for a Heinricci water cooled hot air engine, an ET Westbury design,But it appears to be close to one of the old original German ones...

theres  photos of a finished one here,, I have no link whatsoever  with stationroadsteam, it was the first photos I could find of a completed one thats all.

 http://www.stationroadsteam.co.uk/stock%20pages/3690/index.htm

modelman1938:
I have built a number of stirling engines all with either mild steel or cast iron cylinders, and all with cast iron pistons and have never had a problem. On the other hand I have just built a flame licker with similar materials, ran it for a few minutes, left it for an hour and it went solid. You should be OK.

Hugh

stirling lad:
Thanks for all your advice guys,, I was a bit wary about committing to one way or tuther... :thumbup:

...mike..

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