PWLT Posted December 26, 2021 Share Posted December 26, 2021 Hi Please can anyone recommend a good quality aluminium spinner (3" to 4") that doesn't require an adaptor nut and bolt to secure it? I have several OS IC glow engines of various sizes and they all require the use of a safety/lock nut in addition to the prop nut & prop washer. By the time you add the spinner backplate there is not enough thread left free on the prop-shaft/crankshaft to adequately attach the spinner's adaptor nut. Alternatively, if there is a better way to safely secure props and spinners that use this fixing method, please let me know ? ? Many thanks in advance. Regards to all Peter Quote Link to comment Share on other sites More sharing options...
Alan Hilton Posted December 26, 2021 Share Posted December 26, 2021 I used my lathe to turn the spinner nut to. mimic the locking nut which worked well Quote Link to comment Share on other sites More sharing options...
PWLT Posted December 26, 2021 Author Share Posted December 26, 2021 I think you just gave me enough “justification” to buy a mini-lathe! Thank you Alan! ?? Quote Link to comment Share on other sites More sharing options...
Alan Hilton Posted December 26, 2021 Share Posted December 26, 2021 I wouldn’t be without mine it’s a myford ml7 Which is a great machine ,mainly because there are loads of accessories readily available 1 Quote Link to comment Share on other sites More sharing options...
Jon H Posted December 27, 2021 Share Posted December 27, 2021 either forget the locknut (you really dont need one) or use the adaptor nut as a locknut. I think just engines offer both options 1 Quote Link to comment Share on other sites More sharing options...
Ace Posted December 27, 2021 Share Posted December 27, 2021 10 hours ago, Jon - Laser Engines said: either forget the locknut (you really dont need one) or use the adaptor nut as a locknut. I think just engines offer both options As Jon suggests ? Alternatively swop the castled main nut for a standard one with washer packers if required to ensure enough thread in the spinner nut. Quote Link to comment Share on other sites More sharing options...
Martin McIntosh Posted December 28, 2021 Share Posted December 28, 2021 Whilst on the subject of spinners does anyone know of a current source of a 5 or 5.5" alloy one please? Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted December 28, 2021 Share Posted December 28, 2021 this ?. Quote Link to comment Share on other sites More sharing options...
Martin McIntosh Posted December 28, 2021 Share Posted December 28, 2021 127 is a possibility but I shall have to get the site up in English. Thanks. Quote Link to comment Share on other sites More sharing options...
Bruce Collinson Posted December 29, 2021 Share Posted December 29, 2021 Propguy has 5" and 6" on his website. BTC Quote Link to comment Share on other sites More sharing options...
Martin McIntosh Posted December 29, 2021 Share Posted December 29, 2021 Last post did not get sent but I have ordered a rather pointy 127mm one from ali e. Did not think about Steve at propguy so shall look there as well. Thanks again. Quote Link to comment Share on other sites More sharing options...
Martin McIntosh Posted December 29, 2021 Share Posted December 29, 2021 Had a peek but they look the same. Quote Link to comment Share on other sites More sharing options...
stu knowles Posted December 29, 2021 Share Posted December 29, 2021 Sarik do some nice alloy spinners, mainly for the BT range of plans which offer some alternative profiles rarely found elsewhere. I think 4.6" is about the largest diameter (for the 83" Spitfire) Quote Link to comment Share on other sites More sharing options...
Martin McIntosh Posted December 30, 2021 Share Posted December 30, 2021 I did look at them because that is where the plan came from but nothing suitable. The correct size for the scale is 5.5" but the 5" on order will have to do. Quote Link to comment Share on other sites More sharing options...
PWLT Posted January 20, 2022 Author Share Posted January 20, 2022 On 26/12/2021 at 10:41, PWLT said: Hi Please can anyone recommend a good quality aluminium spinner (3" to 4") that doesn't require an adaptor nut and bolt to secure it? I have several OS IC glow engines of various sizes and they all require the use of a safety/lock nut in addition to the prop nut & prop washer. By the time you add the spinner backplate there is not enough thread left free on the prop-shaft/crankshaft to adequately attach the spinner's adaptor nut. Alternatively, if there is a better way to safely secure props and spinners that use this fixing method, please let me know ? ? Many thanks in advance. Regards to all Peter Just to answer my own question here for completeness should others find the same problem.... OS actually make and sell a "Lock Nut Set for Spinner" part OS45910200. I bought one today from Leeds Model Shop and it works a treat, it's exactly what I was looking for. I didn't want to ignore the engine instructions and not use a locking nut, so for peace of mind, it was worth the money. Regards to all. Peter Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted January 20, 2022 Share Posted January 20, 2022 I Binned my Brian Taylor cone,,, Quote Link to comment Share on other sites More sharing options...
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