Mystery Military Stove - Optimus 111

Discussion in 'Fettling Forum' started by kk1992, Jun 19, 2025.

  1. kk1992 Germany

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    Hi fellow stovies,





    long time no see :)
    Few days ago I acquired an interesting Optimus 111.


    The case is painted green and labeled in scandinavian letters.
    2025-06-18_GAP_6655.jpg 2025-06-18_GAP_6656.jpg 2025-06-18_GAP_6657.jpg 2025-06-18_GAP_6658.jpg

    I don’t think this was an ‘official’ military stove, as I found no corresponding specimen in the reference gallery. Quality of the paint job suggests a civilian Optimus 111 was ‘militarized’.
    It is a kerosene roarer, with the 'M' jet.

    The stove seems to be complete (as far as I can tell, I never owned a 111).
    It seems to have lived a hard live, dings and scratches all over the place.

    Somebody obviously tried to fettle, most gaskets are reasonably new.
    I can only guess the former owner sold because the pump did not build pressure, the nrv had two lead gaskets an was very loosely screwed in...
    2025-06-18_GAP_6661.jpg


    Unfortunately the tank is full of green verdigris on the inside and has quite some copper toned spots (read- dezincification) on the outside, so I guess the patina will be ruined by the following bath in citric acid.

    I already cleaned some of the smaller parts. As I’m no fan of overly polished stoves, the parts will remain in this state, reasonably clean but not polished.
    2025-06-18_GAP_6662.jpg


    I have yet to decide if I leave the case in as is.
    On one hand the paint job is hideous, on the other hand it is part of the unique history of this stove.





    regards,

    kk1992
     

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  2. trebor

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    Norwegian Army stove, Support Company, Platoon no 1, guard and security. Painted Optimus 111 is not unusual to find.
     
    Last edited: Jun 19, 2025
  3. kk1992 Germany

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    @trebor Thanks for the identification. :thumbup:


    I decided to retain the original painting. So I just cleaned it up and gave it a light wax coating.

    The stove is nearly ready.
    - New NRV Pip
    - New pump leather
    - Cleaned burner head and jet

    Unfortunately the spindle was bent and couldn't be reused. I assumed the 123r/8r spindle would fit, but that didn't work out.
    IMG_6690.jpeg

    A new spindle (complete maintenance kit) is ordered and should arrive next week.

    Not that I'm bored, the are still some blowtorches on my bench that require some fettling...
    IMG_6681.jpeg IMG_6680.jpeg

    - kk1992
     
  4. kk1992 Germany

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    Sorry for the double post, but here is my final update:

    Spare parts arrived and I could finally reassemble this olive green ugly duckling.

    Dunk pressure test and the following test burn successful :lol:

    Quite a nice stove (outside it's box).

    Reassembled:
    IMG_6727.jpeg

    Preheat:
    (My first stove with a preheating wick :thumbup:)
    IMG_6729.jpeg

    Flame shots:
    IMG_6730.jpeg IMG_6732.jpeg IMG_6731.jpeg


    - kk1992
     
  5. Tim Read

    Tim Read United Kingdom Subscriber

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    Nice, I recently bought a 111, have yet to fire it up but will do very soon, good to see what to expect when I do.
    Tim
     
  6. ROBBO55

    ROBBO55 Subscriber

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    It's cleaned up nicely, congratulations :thumbup:
     
  7. A A C

    A A C Norway SotM Winner Subscriber

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    @kk1992
    Good work :thumbup:. The case may be «ugly» but it’s what makes the stove unique from all the thousands of this model out there
     
  8. TSPORT United States

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    Looks to be running great. Nice job on the refurbishment! Compared to a lot of Optimus 111 & 8R stoves I’ve seen, that one looks to have had a pretty good life so far, not hard.
     
  9. Tim Read

    Tim Read United Kingdom Subscriber

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    My one, see comment from 3/7/25, fired up with no problems either, makes a great noise.
    Tim