1914 Primus No. 100

Discussion in 'Primus No:100' started by Rodger Willows, Sep 22, 2025.

  1. Rodger Willows

    Rodger Willows Subscriber

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    Recently acquired in my travels - I've admired the "squat" shape of this discus stove for some time...

    IMG_7321.jpg

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    The original burner has been replaced:

    IMG_7324.jpg

    The diameter of the fuel filler is smaller than standard:

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    I can't make out much detail of the burner:

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    The pump tube cap and plunger appear to be retro-fitted:

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    "D" = 1914:

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    I was unable to separate the burner from the riser, so left the joint intact.
    I applied the "prick-and-hope" technique to the jet.
    The NRV had a cork pip which had to be replaced.

    First firing revealed two problems - the leaking NRV and a leak under the jet:

    IMG_7342.jpg

    Interestingly the additional flamelet from under the jet disappeared intermittently:

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    I removed the jet and cleaned it's seat and applied high temperature anti-sieze to the threads before re-insertion:


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    It appeared to be running "rich" so I put the kettle on:

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    There was no "sooting" on the kettle.

    Gratuitous flame shot:

    IMG_7348.jpg

    Thanks!
     
  2. Lighthouse

    Lighthouse Subscriber

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    great score! you got her running beautifully!
     
  3. Tony Press

    Tony Press Australia Subscriber

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    @Rodger Willows

    Nice.

    I make the burner to say:

    “PRIMUS” on one part of the cross;
    Arabic and “SWEDEN” on the other.

    Good stove!


    Cheers

    Tony
     
  4. Rodger Willows

    Rodger Willows Subscriber

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    @Tony Press
    Thanks Tony - your eyes are better than mine!
    I contemplated submitting it to “Rusty but running”, but thought it probably better just to post here…
    @Lighthouse
    Thank you!
     
  5. Blackdog

    Blackdog United Kingdom SotM Winner Subscriber

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    Good find, these early No.100's with tank mounted air release are very fine stoves!


    Given it's age, it's in remarkably good condition- some replacement parts, but no damage or major repairs (do I notice some additional solder on the feet/pot support holders?).
     
  6. Knee

    Knee Poland PotY Winner SotM Winner Subscriber

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    Hi @Rodger Willows .
    It's beautiful!
    And it works well.:thumbup:
    I once found a 100 of a similar age (1913), and like yours, it also had a standard roaring burner .
    IMG_20220924_154631073.jpg IMG_20220924_154345613.jpg
    I'm not entirely sure, but stoves from that period probably had a dedicated burner similar to the 96? (lipstick)
     
  7. Rodger Willows

    Rodger Willows Subscriber

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    @Blackdog

    “(do I notice some additional solder on the feet/pot support holders?)”

    Chris, I think that it is oxidation, but I plan to give it a “boil-up” today which may reveal more blemishes.

    @Knee

    Stanislaw, looking through the Reference Gallery indicates that they were originally supplied with a lipstick burner, but quite a few appear to have been retro-fitted with a No. 1 roarer burner. Your stove has a beautiful patina - very impressive.