Optimus 45 sea swing

Discussion in 'Stove Forum' started by Pancho, Dec 30, 2025.

  1. Pancho United States

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    I just picked this stove today and with the burner I thought it was for alcohol well I was pretty sure it was meant to run on alcohol but after three four or don’t remember how many tries it won’t run on alcohol and what I did was add gasoline to the fount and we got a flame a very nice blue flame. Tell me if this is meant to run on gasoline or not? I know the safeties for gasoline stoves and these doesn’t have all the safeties as Coleman’s
    IMG_9692.jpeg
     

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  2. snwcmpr

    snwcmpr SotM Winner Subscriber

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    Kerosene
     
  3. Ed Winskill

    Ed Winskill United States Subscriber

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    What Ken said. Definitely not gasoline/Coleman.
     
  4. hikerduane

    hikerduane Subscriber

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    I cant see the burner very good, but if alcohol, has a three part burner cap arrangement. What I can see looks like the stove is a 45A, but not certain because of the poor photo.
    Duane
     
  5. hikerduane

    hikerduane Subscriber

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    Shape of burner looks like my 45A.
    IMG_1643.jpeg IMG_1644.jpeg IMG_1646.jpeg
     
  6. Pancho United States

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  7. z1ulike

    z1ulike United States SotM Winner SotY Winner Subscriber

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    That is definitely an alcohol burner. See this link.

    Ben
     
  8. Pancho United States

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    Does not want to work on alcohol but it did on gasoline
     
  9. hikerduane

    hikerduane Subscriber

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    What caps does it have? Have you seen the above pics?
    Duane
     
  10. Tony Press

    Tony Press Japan Subscriber

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    Do not run this stove on gasoline unless you’re either looking for trouble or you’re in an emergency that needs a stove. It does not have appropriate safety features for gasoline.

    1. If it’s not running on alcohol, can you measure the jet in the nipple. For kerosene it should be 0.32mm diameter; for alcohol it should be much larger than that.

    Tony
     
  11. Pancho United States

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    Duane yes, I just get air his when preheated and when it gets cooler (burner) it start to spit alcohol and then it floods

    @Tony Press i just did. Look at the blue flame

    I cannot measure it but the orifice looks too small
     
  12. Tony Press

    Tony Press Japan Subscriber

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    You just did what?

    Tony
     
  13. Tony Press

    Tony Press Japan Subscriber

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    @Pancho

    Do you still have the Optimus 111 or 11 stove?

    Check the jet in the nipple of either of those stoves and compare it to the jet of the 45.

    Are they about the same diameter?


    Tony
     
  14. hikerduane

    hikerduane Subscriber

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    Try less pressure, if jet is too small, won't run. These are very different than gas or kero. I had trouble with mine years ago.
    Duane
     
  15. Pancho United States

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    A video in a bit.


    @Tony Press yes, I do. Looks like I have a kerosene nipple


    @hikerduane im trying your idea.
     
  16. Tony Press

    Tony Press Japan Subscriber

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    Cheers.

    Tony
     
  17. Pancho United States

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  18. Pancho United States

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    Well, picture is here.
    Optimus 111t left and 209N burner on right IMG_9698.jpeg
     
  19. hikerduane

    hikerduane Subscriber

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    Likely the jet then, alcohol jets are much bigger than gas or kero, sucking up more fuel.
    Duane
     
  20. Pancho United States

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    Yes, Duane. Now i need to find a jet for alcohol.