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| SPiN Racing:
Very nice work giving it CPR! Looking forward to the video! Scott |
| NickG:
David, Nice 1, friction seems half the battle with these, my stirling with no heat on it, will move and find it's own position due only to the weight of the piston and the imbalance in the assembly - this is a floor in itself but at least proves the friction is low, balancing only seems critical on LTD engines in my experience, assuming you're just after getting a runner. I have no doubt that a smaller displacer shaft will help slightly, as would the cowl as Stew says. Well done, you've certainly got the knack of these. Nick |
| Stilldrillin:
Thanks for all your positive comments Chaps! Much appreciated...... :thumbup: Didn't manage much, yesterday. But I proved sleeve retainer is much superior to the glue previously used. Getting the assembly apart again, with the blowlamp, was a bit of a struggle. Needed much more heat........ I sawed off the displacer shaft, and "glued" a brass slug into the shaft bearing hole, ready to drill out to 4mm. Hope to pick up again, in a day or so. :D David D |
| Stilldrillin:
Managed a couple of workshop sessions today. :thumbup: Faced end of shaft flush. Tap drilled. Counter drilled 4mm. Tapped 1/8" Whit......... Turned/ threaded some 4mm silver steel, to spigot 1/4" deep into original shaft....... Screwed together,with sleeve retainer. All nicely straight/ in line....... Bushed the shaft bearing and clevis to new size........ Assembled all parts, with sleeve retainer........ Got it all nicely assembled, and spinning freely. Bouncing off compression, when the knurled plug was fitted......... Then, I realised me little legs had had enough....... And, tomorrow's another day...... You'll all have to wait a little longer, for the grand video! Sorry! ........ (Not really)...... :D David D |
| NickG:
That looks a lot more sensible to me Dave :thumbup: :poke: now wake up and do the video :lol: bouncing off the compression still shows that ratio of swept volumes is small for this design - that's not a bad thing, it makes the engine more efficient but it does require more heat. |
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