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  1. #1
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    Default Remagnetise magneto

    Not sure if this is of any interest, but I found this big magnet at the scrap yard some time ago. The guy gets a lot of ex medical stuff. I've seen lead containers for low level radioactive stuff etc, but this thing must have been off an MRI machine or something. I think it might be a yoke off some kind of EMF transducer. Anyway, this magnet is incredibly strong. I have no chance of pulling apart the two halves. If I hit it with a big rubber mallet, I can just cause the two halves to slide a few mm each blow.

    I have an old wico ek magneto I have been restoring. That is the frame of the magneto sitting on top of the big magnet. to give you an idea of scale, the top keeper, is a 25x12mm flat bar. When i got the magneto, I could pull off that keeper very easily. In fact, I could lift up one long edge sort of pivoting it off, with very little effort. it was like there was no resistance if you twisted the keeper of that way. If I kept the pull very perpendicular to the faces, it could lift maybe 5kg at a guess. It could pick up a screwdriver by its end, just, but it fell off easily.

    So I sat the frame on the big magnet as shown, using a compass to make sure I had it pole to opposite pole. Immediately, i could pick up the whole thing including the big magnet, by lifting the keeper. It was very difficult to lift off the keeper, and even twisting up the long edge, it offers a lot of resistance.

    After two weeks I took the magneto frame off the magnet and left it a week. When off the big magnet it is not as strong, but it is hundreds stronger than it was before. Its not got any less after a week. I'm going to rebuild it now and see if it gives a good spark. if it doesn't, I will try to put it directly across one half of the big magnet which should mean the magnetic flux is much higher again.

    Anyway, it appears this is a very easy way to remagnetise an old magneto, rather than trying to make a coil big enough to make an electromagnet. You just need a really big magnet
    Wiko EK.jpg

  2. #2
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    Default

    I have some books on rebuilding Wilco EK magnetos and the care and instruction book if you need any info.


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  3. #3
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    Default

    Thanks DSEL74. I took loads of pictures as i dismantled it, so I'm hopeful I can get it going again, because it was actually 18 months ago and bits have been sitting in kerosene all that time. I got a McCormick Deering type m 1.5 which I haven't even started on, things just keep happening that are more important.

    Actually, for a first time, that engine seems really easy to restore because of a guy called shopdogsam on you tube. He's sometimes as frustrating as hell to watch sometimes because he takes a long time to get to the point but also quite interesting if you have time to kill. he covers everything you could ever want to know on the engine. He's done 100's of videos on repairing the engine and ek magnetos. better than telly, thats for sure.

    Here's some of his type m videos
    https://www.youtube.com/results?sear...pdogsam+type+M

    And some on the magneto
    https://www.youtube.com/results?sear...dogsam+EK+wico

  4. #4
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    Is that the same as the International Harvester ?

    There was a lot of rebadging and copying going on that I'm not up with. But they look the same to me.

    If you run into trouble I can scan pages for you.



    I'll check out the YouTube guy.
    …..Live a Quiet Life & Work with your Hands

  5. #5
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    Yes that looks like the magneto and I think IHC was the same as McCormick Deering.

    From here Explain the Difference Between McCormick, Farmall, and International - General IH - Red Power Magazine Community
    IHC was formed in 1902 from The McCormick Reaper Co., owned by Cyrus McCormick and His brothers, Deering Harvester Co. owned by William Deering, The Plano Manufacturing Co, owned by W.E. Jones, and Warder, Bushnell, & GFlessner Co. owned by Benjamin Warder. This information was taken from the first few pages of "150 years of International Harvester" written by C.H.Wendel. My book is copywrited in 1981, original edition. I had Mine before the Plant Mgr. of FARMALL had His even!

    My engine, ~1928, has a badge that says McCorrmick Deering on it but otherwise i think they are exactly the same. Some are badged IHC as far as i can see.

  6. #6
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    I see Shopdogsam has now got over 1000 videos. To make it easier to see a good one, here is a series of about 44 videos all about 10 mins long, where he finds and restores a typeM.
    https://www.youtube.com/watch?v=GhsBpRHT_Mc
    If you have a broken bit and just want to know how to fix it, its frustrating to wait until he tells you about it, but otherwise its interesting to just watch from the start.

  7. #7
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    Does Shopdogsam actually have normal videos that explain things? I have watched a few and decided it was just not my cup of tea. The videos I have watched made me wonder which planet he is on. One I found somewhat fascinating was "The Freedom Stand maytag model 72 #1 thinking out loud". Very er, enlightening.

    Dean

  8. #8
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    I see what you mean about shopdogsam nowadays. I spent a lot of time watching the videos a year ago when there was a lot less videos, but he's making so many videos that I can't find a proper playlist like I used to. He seems to have overloaded you tube search engine. for instance, he did a series of 21 videos on how to fix a wico EK magneto. now the best I can do is find #1 and you've got to hope 2~21 appear in order after that. He had done other videos on the same magneto too, so its quite confusing without the playlist.
    https://www.youtube.com/watch?v=0w84...Z4dew8aUocRkUU

    If you can find the playlist, you can jump to the bit that you are interested in but its still pretty frustrating waiting for him to get to the point. very good info though, there's no way you would get stuck with this engine because he covers it all. He does go into how to rebush valves, remove the cylinder liner, free stuck engines, mill the carbs so they are good again, basically everything. Describes the operation of every bit.

    here's a play list like I used to find, this is for a 1920 typeM he restored. I don't know why I can't find this type of thing for the other video series he's done.
    https://www.youtube.com/playlist?lis...4lqj1YtBxaJynF

    Here's a video of one he's converted to hit and miss. I think I'm going to do this too, because I really like the hit and miss thing. The original one is a throttle controlled regulation with it firing every time.
    https://www.youtube.com/watch?v=ewo9bVGcNIY

    Maybe you need to have one of these engines for it to be interesting, but any particular part that needs restoring is covered somewhere. There's very good info in there, considering how hard it is to find out about some old engines - persevering to find the section is hard. I think he's shot himself in the foot by doing so many now though plus there seems to be a lot of non-engine videos that I wouldn't watch. It's like watching a daft old uncle when you just want some info and he insists on going on about everything else and going off on a tangent.

  9. #9
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    I found the playlist to the 1926 restoration. I think I watched all of these, if you can waste all those hours you will learn a lot about that particular engine. I watched them at work - sometimes I've had enough and I'd like them to sack me.
    https://www.youtube.com/playlist?lis...KDf_7JqfkYxu3t

  10. #10
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    Worlds Most Beautiful McCormick Deering Engine type m

    He did a great job on pimping that one.


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  11. #11
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    Watch this video and tell me if this is anywhere near normal for him. Maybe I saw couple of bad ones. It is only a bit over 4 mins.

    https://www.youtube.com/watch?v=S3Edy7Id92k

    Dean

  12. #12
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    I watched that video, ??? I think he must have made a bit too much methanol in his Arkansaw moonshine. It could be humour we don't get.
    Have a look at the hit and miss video, at least you see a nice engine making nice noises.
    bit of a bent crankshaft but i think this was a rough engine he used to convert. Think there is a video of him doing this and he fixes the shaft too.
    https://www.youtube.com/watch?v=ewo9bVGcNIY

  13. #13
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    I've seen a couple of videos like I linked to, but I will have a look at the hit and miss video. Thanks Sossity.

    Dean

  14. #14
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    The video is a bit sketchy. I'd love to see proper photos of this engine.
    …..Live a Quiet Life & Work with your Hands

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