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| Another version of how not to build a model engine |
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| sorveltaja:
Thanks for the replies :thumbup:. Piston/cylinder fitting is in progress. Although 3/4 is done, it's quite tedious job to do, as I have to do it manually. I tried using lathe for that, but piston gets too easily stuck in the cylinder. So tight, that it has to be hammered out. I really don't prefer to do that. That's the reason, why I do the job manually. One may ask: "why don't you use o-rings?". During the process, I have indeed looked for an easier way to make tight cylinder/piston fitting. I have read about successful use of Viton as piston ring(s). Viton is available here, but it's rather expensive. Anyway, I have enough ptfe(teflon) to make o-rings, as an alternative, as it stands heat, and doesn't require lubrication. |
| sorveltaja:
Piston fitting is now done. After short run-in in lathe with plenty of oil, piston moves smoothly in cylinder: Compression feels good, and it's again about the time to restore the engine to its glory running condition :ddb:. |
| Bernd:
S, Can't believe the dedication you have put into this engine. Your perseverance has been unbelievable. I hope this engine turns out to be a good runner after putting that much effort into it. I know I wouln't have had the patients to carry on as far as you have on one project. :clap: :thumbup: This thread will hopefuly inspire others to carry through to the end on their project. Bernd |
| NickG:
Very true Bernd. Today I've been looking at the poppin plans (another flame licker) incase I can't get mine going - even down to what materials to buy! But that is pretty negative so am going to follow in S's footsteps and concentrate on trying to get mine running for a bit first! Nick |
| Stilldrillin:
--- Quote from: Bernd on December 22, 2009, 09:45:41 AM ---S, Can't believe the dedication you have put into this engine. Your perseverance has been unbelievable. I hope this engine turns out to be a good runner after putting that much effort into it. I know I wouln't have had the patients to carry on as far as you have on one project. :clap: :thumbup: This thread will hopefuly inspire others to carry through to the end on their project. Bernd --- End quote --- S`s avatar prompts me to say , he`s certainly showing "dogged determination"....... :lol: Sorry..... ::) David D |
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