Which metric thread do I have? Heinze Geniol Dieselkocher

Discussion in 'Fettling Forum' started by snwcmpr, Jul 11, 2018.

  1. snwcmpr

    snwcmpr Subscriber

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    Dieselkocher quick lighter.

    What: Male thread of this nut.
    HG-Stove.jpg


    I measured the major diameter at .570 inch.
    I measured 3 threads at .120 inch (.120 / 3 = .04 pitch)
    If not metric --- a little big for a 9/16-25. So NOT.

    If Metric:
    M14x1 --- Maj Dia 13.974/13.794 mm = .550/.543 inch (Too small)
    M15x1 --- Maj Dia 14.974/14.794 mm = .5895/.582 inch (Too big)

    Logic tells me M14.5x1.
    Assume: Maj Dia 14.474/14.394 mm = .5707/.5667 (Theororetical?)
    1 mm pitch is .0393 inch.

    Am I off on this? It has been many years since I did this and the rust and cobwebs are in the way.

    Reason:
    After rebuilding this stove I found a leak. A slow leak. Not enough to show in a dunk test, but overnight the pressure would be gone.
    I tightened the nut on the quick lighter and it slipped past. Uh-Oh!! (Not the words I actually used)
    A few of the male threads are torn. The nut will not tighten anymore.
    I swear I did not cross thread it. I am 90% sure I did not do that.
    I do not see thread lock residue on the threads.

    I do not want to remove the soldered (brazed?) fitting and replace.
    I am thinking a cap, with a viton seal, may seal it.

    Next step:
    Measure pitch diameter with wires.

    Ken in NC
     
  2. Tony Press

    Tony Press Australia Subscriber

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    @snwcmpr

    Our colleague (@Rodger Willows) would also like to know the answer to that question as he is thinking of removing the "quick starter" and blocking off the thread.

    Cheers

    Tony
     
  3. Rodger Willows

    Rodger Willows Subscriber

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    @Tony Press
    Tony is correct in my wanting to know as I am planning to remove the "blow torch"...
    Pitch is definitely 1mm (measured with a pitch gauge and I measure the outer diameter as 14.78mm with the vernier.
    I am currently working on a Primus 71 and conveniently the fuel tank lid would appear to fit (when I eventually prize the charcoaled residual seal from under it).
    I've ordered a 15 x 1 mm bottom tap with a view to getting a local machine shop to knock up a cap for me...
    Keep me posted!
    Rodger
     
  4. gideon

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    9/16"-26tpi (?)
     
  5. snwcmpr

    snwcmpr Subscriber

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    .5819
    So, I think 9/16, .5625, is too small.
     
  6. Odd

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    And since the H-G is Made in Germany - I think you guys can safely exclude any risk of it being an Imperial measure thread. Much less risk: It being an old unique Swedish in-house thread used by Primus, Optimus, Radius and the like. And then used by the Germans as well for their interpretation of the old Swedish craft of constructing / designing pressurised kerosene stoves and lanterns.

    Might be something for our Afterburning Finnish friend to investigate?
     
  7. Garth

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    A gas thread exists my guess is the stove industry may use it too
     
  8. Jeopardy

    Jeopardy Subscriber

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    Standard thread size and nut across flats measurements tend to go hand in hand. So what does the nut measure A/F?
    Are there any markings on the nut? I work in an industry where this type of fitting has yet to go metric because they are bought in from USA.
    Regards
    John
     
  9. Russenjesus

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    if you can wait 4hours i measure it on an old tank flying around in my garage...

    RJ
     
  10. Russenjesus

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    Hello friends,
    i would say it's a M15x1, but i sent a mail to Heinze about it.

    RJ
     
  11. snwcmpr

    snwcmpr Subscriber

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    Thank you. I await the reply from Heinze.

    I will look for a nut that I can make a cap from.

    Next, I will look for a replacement part for that attachment. It looks like solder/brazing to fix it.
     
  12. Russenjesus

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    Hello Ken,
    here the answer of Peter Heinze:

    "Sehr geehrter Herr Pfeiffer,

    das Gewinde ist in der Tat M15x1. Benötigen Sie irgendetwas in dieser Richtung?

    Freundliche Grüße/Kind regards/Med venlig hilsen/Saludos/Salutations,

    Peter Heinze

    Heinze Metallwarenmanufaktur e.K. // Inhaber Peter Heinze
    Treppenstraße 11 A // DE 42115 Wuppertal // Fon +49.202.24257-0
    Fax +49.202.24257-12 // info@heinze.eu // www.heinze-metallwaren.eu
    Wuppertal HRA 22308 // Umsatzsteuer-ID-Nr. DE254708693"


    Yes its a metric M15x1, if you need parts contakt him, maybe he has the parts you need.

    Markus (RJ)
     
  13. snwcmpr

    snwcmpr Subscriber

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    Thank you very much Markus
     
  14. snwcmpr

    snwcmpr Subscriber

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    I will contact Heinze and ask for the part, and inquire of other parts.

    Anyone in the USA that would like me to get parts for these.

    I am sure the bulk of items I get in one shipment from Germany would save a bit. Then low cost shipping to US addresses.

    I sent this:
    I hope the translation is adequate.

    Ken
     
    Last edited: Jul 13, 2018