Rotax Magnetos

Discussion in 'Engines' started by ProudKerman, Oct 19, 2015.

  1. ProudKerman

    ProudKerman Member

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    Hi
    So I just picked up two Rotax magnetos to suit Merlin engines.

    I was wondering if anyone had any info on them or anything like that. I have multiple Merlin Manuals but they all talk about timing.

    Any experts able to tell me how to test them and possibly get them working?
    Attached some pics for your enjoyment
    :)
    Cheers

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  2. FLYBOYJ

    FLYBOYJ "THE GREAT GAZOO"
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    Are they "sparking" when rotated? Unless you have a "test bench" teh only other way is to actually install them. What paperwork did you get with them?
     
  3. ProudKerman

    ProudKerman Member

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    I would have to check and I didn't get any lol woops
     
  4. Crimea_River

    Crimea_River Well-Known Member

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    Let's start with this. I'll take a look if I have something on testing.

    Capture.JPG Capture2.JPG Capture3.JPG
     
  5. Crimea_River

    Crimea_River Well-Known Member

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    Here's a bit more:

    Capture.JPG Capture2.JPG
     
  6. FLYBOYJ

    FLYBOYJ "THE GREAT GAZOO"
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    #6 FLYBOYJ, Oct 22, 2015
    Last edited: Oct 22, 2015
    That data is for a bendix magneto. Although the operating principles are the same using this data in wrong and potentially dangerous. It seems to be a model 37A.

    CORRECTION - my bad - it does mention Rotax on the 2nd page. Be careful when rotating it! (Providing it still rotates)
     
  7. gumbyk

    gumbyk Well-Known Member

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    I want video of him rotating it!! That's the sort of thing you only do once in your career...
     
  8. ProudKerman

    ProudKerman Member

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    Whys that gumbyk??
     
  9. FLYBOYJ

    FLYBOYJ "THE GREAT GAZOO"
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    • Like Like x 3
  10. gumbyk

    gumbyk Well-Known Member

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    Exactly!

    I got thrown a capacitor that had been tested but not discharged once. Unfortunately your first reaction is to catch it... Mine isn't any more.

    Before anyone asks - its high voltage, low current so the risk is actually fairly minimal.
     
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  11. ProudKerman

    ProudKerman Member

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    Ahh okay thats worrying lol
     
  12. camman

    camman New Member

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    I had a teacher who I was demonstrating a leyden jar to, and I accidentally knocked it off the table. He caught it and learned the same lesson.
     
  13. bobbysocks

    bobbysocks Well-Known Member

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    my dad worked in a radio shop after the war and he told me about that. charging a cap and tossing it so someone seemed to be the gag played on you when they were new. like you said, after the first time you are very leery about catching anything tossed to you.
     
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