Engine Doctor Posted November 3, 2022 Share Posted November 3, 2022 Excellent ! Quote Link to comment Share on other sites More sharing options...
Jon H Posted November 3, 2022 Share Posted November 3, 2022 As i treated myself to a small lathe i might have to join you in these endeavours. Alas no mill, so everything will have to be round! Quote Link to comment Share on other sites More sharing options...
Nick Somerville Posted November 3, 2022 Share Posted November 3, 2022 Radials are round! 3 1 Quote Link to comment Share on other sites More sharing options...
Ron Gray Posted November 3, 2022 Share Posted November 3, 2022 21 minutes ago, Jon - Laser Engines said: Alas no mill, so everything will have to be round! Cutting tool in chuck, piece in cross slide = poor man’s mill 2 Quote Link to comment Share on other sites More sharing options...
Jon H Posted November 3, 2022 Share Posted November 3, 2022 19 minutes ago, Ron Gray said: Cutting tool in chuck, piece in cross slide = poor man’s mill Yep, its hanging on to the thing thats the issue. It also means i need to buy yet more stuff to go with it! Quote Link to comment Share on other sites More sharing options...
Rich Griff Posted November 3, 2022 Share Posted November 3, 2022 I need a bigger shed ! 1 Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted November 3, 2022 Share Posted November 3, 2022 You could follow Arthur ( two sheds ) Jackson,,, Quote Link to comment Share on other sites More sharing options...
Jon H Posted November 3, 2022 Share Posted November 3, 2022 2 hours ago, Rich Griff said: I need a bigger shed ! Not before me. 8x6 is insufficient for all my gear to say nothing of fitting a 7 foot wing in there. Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted November 4, 2022 Author Share Posted November 4, 2022 (edited) Although it's possible to do milling on the lathe it requires a lot more effort and patience (and time)to achieve good results, and after slotting a couple of cylinder heads and woodruff keys in a new counter shaft for the myford, I brought a mill ! Some more metal mangling Edited November 4, 2022 by jeff2wings 1 Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted November 5, 2022 Author Share Posted November 5, 2022 Intake/tank finished, final ops ,make prop spinner, cop screw,thin mounting lugs and drill, clean thoroughly, assemble and then, hopefully, run !🤞 3 1 Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted November 6, 2022 Author Share Posted November 6, 2022 That's it, all done and ready for assembly and testing 5 1 Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted November 14, 2022 Author Share Posted November 14, 2022 So I have managed a few 20-30 second burst after a lot of flipping mostly due to the fact I made the piston/liner quite tight, I think most of the running in has been done by hand lol 😆! I may have to reduce the piston skirt by aro 20-30 thou as there's very little sp induction and a new needle valve as the one I'm using is of a K Mills. So time to resurrect another project 4 Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted November 19, 2022 Author Share Posted November 19, 2022 Bit more progress with the final machining of the crankshaft, prop driver, nut and washer and crankcase rear cover, next will be intake and fuel tank 3 Quote Link to comment Share on other sites More sharing options...
Alan Hilton Posted November 19, 2022 Share Posted November 19, 2022 On 03/11/2022 at 09:07, Jon - Laser Engines said: Yep, its hanging on to the thing thats the issue. It also means i need to buy yet more stuff to go with it! There are milling slides available I have one I don’t use it’s made for a myford Quote Link to comment Share on other sites More sharing options...
kevin b Posted November 19, 2022 Share Posted November 19, 2022 Very good Jeff. 2 cylinders next ? Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted November 20, 2022 Share Posted November 20, 2022 I have a vertical slide etc for milling on my lathe however it takes so long to strip then reset up that I bit the bullet and bought a bench top mill . Brilliant tool and combined with a lathe opens up a whole lot of procedures that otherwise would be too troublesome. Start saving Jon 😉 . Quote Link to comment Share on other sites More sharing options...
Rich Griff Posted November 20, 2022 Share Posted November 20, 2022 Hi Ed, which one did you get ? Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted November 25, 2022 Author Share Posted November 25, 2022 On 19/11/2022 at 19:49, kevin b said: Very good Jeff. 2 cylinders next ? Funny you should say that..... A bit more metal mangling parting off the bottom plug for the tank Machining tank and lid to size cross drilling intake tube ready for soldering All done! 3 Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted November 26, 2022 Share Posted November 26, 2022 On 20/11/2022 at 10:40, Rich Griff said: Hi Ed, which one did you get ? PM sent Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted November 27, 2022 Author Share Posted November 27, 2022 Well I'm having a bit of a issue with a tight spot with the Speary piston/liner I think I will have to get a bit more aggressive with the lapping, most likely need another piston making 😒 But l have finally got some sustained running with this . Running on a 10x4 Kavan ,when it's done a bit more running I will check the rpm's 1 Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted November 27, 2022 Share Posted November 27, 2022 Only one G clamp !😵 so when will it take to the air ?. Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted November 27, 2022 Author Share Posted November 27, 2022 LOL! It's just about making sufficient draught to worry the skin on a rice pudding ,it's only 1.4cc although it looks bigger but I will be building a F/F model for it Quote Link to comment Share on other sites More sharing options...
brokenenglish Posted November 27, 2022 Share Posted November 27, 2022 Jeff, I don't know anything about these oddball designs, but that engine is very like an early Allouchery. Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted November 27, 2022 Author Share Posted November 27, 2022 Thanks for posting those pictures, i I tried to combine the looks of the Allouchery and the Dyno with the porting of the Mills,although I made the piston a bit long so there's no sub piston induction at the moment. I have another set of castings for the Speary that I intend to-do as an spark ignition and a set for a Atom 111 that may get the diesel treatment ! Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted November 28, 2022 Author Share Posted November 28, 2022 Spent a couple of hours this afternoon making the second cylinder for the pair of Westbury atoms,bit stressful doing the cooling fins as they are only 1/32 thick,the original drawings suggest using cast iron 😯! Not very likely to get broken much ! 3 Quote Link to comment Share on other sites More sharing options...
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