| Gallery, Projects and General > Project Logs |
| Robinson Hot Air Engine. |
| << < (9/38) > >> |
| Stilldrillin:
Dave, Stew. Thanks for the thoughts and ideas....... :thumbup: Wish I'd used your backward extractor before the slot broke up Stew! ::) Anyroad. I'll post a caddycrappy sketch, when I get the chance. That might explain better than my words can Can't strip any further, without needing to make replacement parts....... Does jointing compound around the ring make sense? Or, Should I just bite the bullet, and rip it apart? :scratch: Graham. Didn't we have a great day at STL! :D She will be running for the next one! Hope you and Jilly are there to see it..... :wave: David D |
| NickG:
David, Do you think the leak is between base and bronze ring? It should be fairly easy to seal that with a fillet of sealer around the inside diameter, or even epoxy resin like araldite, just glue the thing in place. Maybe try PTFE tape wrapped around the tube, quite a few wraps if you can get underneath it? Failing that, are you going to run it for prolonged periods of time? I know this isn't the point ... but you could just seal it up as best you can and leave it air cooled! Nick |
| Stilldrillin:
Nick. This is this morning's condition..... Sealed all round with Heldite. Curing gently on a radiator. Tomorrow, mebbe, I'll re assemble, again..... ::) All I want it to do, is do what it does/ can, reliably....... Then, I'll do the mods over winter. :thumbup: I know they have trouble getting rid of the excess heat. Water jacket holds 30cc. only. A thermo syphon system seems the way to go. Also, a chimney from the top of the skirt. Mebbe ballrace crank bearings. The possibilities are (almost) endless. Once I can get her running leak free...... :D David D |
| NickG:
David, Looks to me like that should work :thumbup: - if that doesn't seal it up what will! Might be worth layering the ptfe tape over that threaded section when you build it back together? Might be worth a try. I like the sound of your mods, do you think the quality of the castings look good? I'm considering it as it's reasonably priced from Bruce Engineering. You may have said before but what is the approx. dia. of the flywheel so I can get an idea of scale? Cheers, Nick |
| Stilldrillin:
--- Quote from: NickG on November 08, 2010, 05:44:19 AM ---David, I like the sound of your mods, do you think the quality of the castings look good? I'm considering it as it's reasonably priced from Bruce Engineering. You may have said before but what is the approx. dia. of the flywheel so I can get an idea of scale? Cheers, Nick --- End quote --- Nick. If I had the confidence. The time. A better lathe etc, I would have a go at making one..... I could do a much better job than this one! ::) Have a good look here. This is done with lots more forethought.... http://www.steves-workshop.co.uk/steammodels/robinson/robinsonindex.htm The flywheel is 4.5" dia. Running again, (dry), this afternoon...... :thumbup: David D |
| Navigation |
| Message Index |
| Next page |
| Previous page |