Sievert SVEA 123 Stove Fettle

Discussion in 'Fettling Forum' started by SimonFoxxx, Nov 16, 2019.

  1. SimonFoxxx

    SimonFoxxx Subscriber

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    I am fettling this stove, as I have identified a leak where the burner riser screws into the fount. I have counted the turns to unscrew, starting with the spindle over the "1" of the SVEA 123; 7.5 turns.

    To seal the leak, should I use red Loctite #3 to seal the leak, or turn tighter past the "1" ?
    Any comments greatly appreciated.
    Cheers
    Simon Foxxx
     
  2. dwarfnebula

    dwarfnebula United States Subscriber

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    I use permatex high temperature thread sealant. It seals, but does not lock.
     
  3. Tony Press

    Tony Press Australia Subscriber

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    Simon

    Turning past 1 might put the control spindle in the wrong place relative to the windshield.

    I would first try copper or nickel grease. If that doesn’t fix it, clean the threads with solvent to get rid of the grease and use a medium Loctite.

    Tony

    @SimonFoxxx
     
  4. Tony Press

    Tony Press Australia Subscriber

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    I crossed with @dwarfnebula.

    That stuff sound interesting. I’ll see if I can buy it here in Oz.

    Tony
     
  5. snwcmpr

    snwcmpr Subscriber

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    I do not recall needing sealant.
     
  6. SimonFoxxx

    SimonFoxxx Subscriber

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    At the point where the spindle lines up with the 1, ie 7.5 turns, the taper joint does leak. I know this for two reasons. Low power flame on full, and a constant stream of bubbles on the hot water dunk test. I will need to seal with something, to get to performance back. I have an idea that red Loctite #3 is not resistant to fuel, so wiil need to check.
    Cheers
    Simon Foxxx
     
  7. pyro_P Australia

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  8. snwcmpr

    snwcmpr Subscriber

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    Before you use sealant ...
    Clean and check the condition of the threads on both the tank and the riser.
     
  9. SimonFoxxx

    SimonFoxxx Subscriber

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    Fair point, Mr Snow Camper.
    Cheers
     
  10. SPaul

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    The thread is tapered, so I wonder if one could just turn it 1/3 of a turn tighter so it aligns with the screen's window. My thought is after a few wick changes, the hole or might enlarge a bit, or the threads might wear a bit, so they designed it with a tapered thread.
     
  11. Majicwrench

    Majicwrench Subscriber

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    I would use a threadlocker/locktite product, no reason not to. It will hold up well to fuel and heat, you can find those specs on line.

    Do take a good looksee however,, a string of bubble reeks of something more than just leaking past threads.