Shmel 4 gasoline stove

Discussion in 'Russia' started by presscall, Nov 12, 2020.

  1. presscall

    presscall United Kingdom SotM Winner SotY Winner Subscriber

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    Current ebay prices for clean example are substantial. I couldn’t pass up the offer of a ‘cosmetically challenged’ example with a pot rest missing - an easy shape to reproduce.

    What paint remains suits the stove. I’m thinking Iron Curtain era Trabant, or maybe that was turquoise I was thinking of?

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    Some work to do. A pot rest to fabricate. Seals replaced together with a non-working pump O-ring. I remembered an excellent post by @pau-i-amor , who got the tip from @Bratok_xxl . See it HERE.

    V-groove cut in the pump plunger component, plain O-ring. Original O-ring with those pips to achieve the same purpose, to break suction on the ‘pull’ stroke. The solution works perfectly.

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    Pricker assembly and control spindle/eccentric.

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    The pricker assembly also regulates fuel flow and stops fuel to the jet when that spigot on the opposite end to the pricker ...

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    ... enters that passage in the burner riser.

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    The conical shape mating against the rim of that passage regulates the fuel and cuts fuel flow when the spindle is turned fully clockwise or anti-clockwise.

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    The chamfered flate above the burner threads mates agains a corresponding chamfer in the burner mount of the stove tank, the aluminium priming cup acting as a washer to enhance the sealing properties of the joint.

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    The pot rest arrangement, the frame held securely in place on the fuel tank when the burner is screwed home.

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    Windshield fits into the pot rest frame rebate - no wobbling about.

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    Control handle moulding. The size and shape offers excellent control.

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    Embossing on the container lid.

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    Fuelled up with Aspen 4 and 15-20 pump strokes to pressurise, a controllable flame.

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    I’m very impressed with the Shmel. Robust, a great performer, with some excellent design features. Stylish too (particularly in the pale green paint finish).

    John
     
  2. SveaSizzler

    SveaSizzler United States Subscriber

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    I'm afraid if you want a Turquoise Trabant, Comrade, you'll have to wait another 11 years for it to get out of the Paint Shop.
     
  3. Sternenlicht

    Sternenlicht Subscriber

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    Hej John @presscall,

    fantastic presentation as always, thank you John!

    I found that stove some time ago in NOS condition for a very good price. I never used it but its fun to see the nice pictures of a running Shmel 4!

    I agree, very nice made stoves!

    Ciao, Bastian

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  4. Bratok_xxl Russian Federation

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    Hi John. Nice stove - but operate this type burner VERY VERY careful - its have one big problem - stupid eccentric regulation and very stupid construction of pricker ! If you remember remove pricker from jet after burn - it may stuck on jet after stove go to cold, one move - and pricker head take off and broke 2mm metrical thread easy after stuck, or broke eccentrick too. Easy way - drop-off pressure on tank, do 2-3 times cleaner procedure - move up - down pricker, and put it to position - not maximum high, but just upper, the maximum low. Yes, its not close stove for 100%, but save you burner and stupid eccentric with pricker and jet =) Many drunk tourist people in Russia kill very many burners this type, if not do this easy things.
     
  5. presscall

    presscall United Kingdom SotM Winner SotY Winner Subscriber

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  6. Bratok_xxl Russian Federation

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    Good luck and be careful !!! Yoy have repair kit, but not have pricker on it - i cant see pricker on photo in to zip box.
     
  7. presscall

    presscall United Kingdom SotM Winner SotY Winner Subscriber

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    @Bratok_xxl The photo you’re seeing the spares kit in is of Sternenlicht’s stove. I don’t have spares.
     
  8. Bratok_xxl Russian Federation

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    Oh yes =) Sorry - its my mistake =)
     
  9. Ian

    Ian Subscriber

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    @presscall, the colour of your stove is 'eau-de-nil', a shade much favoured by institutions and shipbuilders.
     
  10. presscall

    presscall United Kingdom SotM Winner SotY Winner Subscriber

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    @Ian Thanks for the info Ian. Now you mention it I’ve seen such use, on-shore at least, in municipal settings and the like.
     
  11. Huub Netherlands

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    Shmel 4 plunger mod o-ring size

    @presscall: I have found a Shmel 4 in really good condition and would like to make the modification to the plunger described above or to make small holes in upper section (Мифы и сказания о примусах "Шмель". Жизнь — все новости (вчера, сегодня, сейчас) от 123ru.net). For the o-ring size I have found a discussion in the forum but no definitive answer: 9x2,5 or 10x2,5. Do you remember which size o-ring you used? I have measured the original o-ring and it approximates 10x2,5.

    Regards, Huub
     
    Last edited by a moderator: Jan 14, 2021
  12. Spiritburner

    Spiritburner Admin SotM Winner Subscriber

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    It's a 14mm bore tube I believe. I was talking to someone who tried 9mm x 2,5mm & it was too slack. 10x2.5 sounds like it'd be a better fit,
     
  13. Huub Netherlands

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    Thx for your fast reply Ross :-)
     
  14. Russenjesus

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    Hello John,
    when I had a Shmel-4 27 years ago, there was no excentric like yours, by my one there was the excentric with only a iron ball, witch open /close the tube to tank, so this stove was only able to have full-gas or off, nothing between this;-)
    So your construction will be better.

    Markus
     
  15. presscall

    presscall United Kingdom SotM Winner SotY Winner Subscriber

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    @Russenjesus Interesting, Markus, nothing to be done with that ball device. Even the more recent arrangement, though evidently an improvement, wasn’t altogether to my liking however.

    Just today, in THIS post, I improved on the simmer by re-profiling that pricker eccentric.
    John