Information on Meva

Discussion in 'Fettling Forum' started by Punch, Jan 27, 2019.

  1. Punch

    Punch Canada Subscriber

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    Just bought a Meva #1 at antique store for $80.00. No idea if that's a good price. Looking for age of stove. #357 stamped on bottom of tank. Is this a one liter stove? After some quick Fettling it lit up. But notice bubbles at lip of filler cap. Losing pressure through solder crack? Filler cap is bigger than I've seen so is there a bigger cap seal or should I make from HDPE material.

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  2. Murph

    Murph United States Subscriber

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    @Punch, HDPE could be a bit stiff for a cap gasket, IMO.

    I've had great success with a cork/rubber blend, sold in 1/16" sheets. NAPA Canada has it, their part # is FPG 3018, and I see you've got several NAPA locations by you in Calgary.

    https://www.napacanada.com/en/p/FPG3018

    This is a LOT easier to work with, a sharp hobby knife is all you need, I've used punches here to make washers and cap gaskets, works a treat, and holds up very well!

    Murph
     
  3. Punch

    Punch Canada Subscriber

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    Okay. I think I have a very small solder failure where filler neck meets tank.
     
  4. Murph

    Murph United States Subscriber

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    @Punch , I suspect a toothpick and some two part epoxy will cure that easily, no need for soldering on that you!

    Murph
     
  5. Lennart F

    Lennart F Sweden Subscriber

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    It is quite common to find a year and month stamp in bottom of 50's-80's Meva lanterns so I should guess your stove was made in March 1957.
     
  6. dusan

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    357 = 3.Q.1957
     
  7. Punch

    Punch Canada Subscriber

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    Okay. March 1957. What does 3Q indicate?
     
  8. snwcmpr

    snwcmpr SotM Winner Subscriber

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    1st Quarter - Jan, Feb, Mar
    2nd Quarter - Apr, May, Jun
    3rd Quarter - Jul, Aug, Sept
    4th Quarter - Oct, Nov, Dec

    I am not saying it is 3rd quarter, only defining what 3Q means.
     
  9. Punch

    Punch Canada Subscriber

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    Excellent help. Any ideas how to fix a bend on rim of burner. No effect on burn but I'd like to correct it. Also the higher the pressure, the more odd shape the flame pattern. As seen in pic.
     
  10. snwcmpr

    snwcmpr SotM Winner Subscriber

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    The odd shape of the flame is too much pressure. Back off on the flame.
    To straighten the burner, I would make certain it is annealed, by heating it up with a torch and letting it cool. Then heat up the area with a torch again and tap with a brass rounded hammer to a round shape. I would tap it on something soft, like a piece of wood. If you are not handy that way, then just do it slowly with care. Is that explained enough?
     
  11. Punch

    Punch Canada Subscriber

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    Thanks all. That's exactly what happens. When you bleed off pressure, flame pattern returns to a more standard appearance. Although my silent burner Hipo won't change pattern no matter how much you pump it up. Anyway I've only had this Meva one day. What about tapping out bend just after turning stove off?
     
  12. Lennart F

    Lennart F Sweden Subscriber

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    I have successfully adjusted that edge with a flat nose plier when the burner runs quite hot on a couple of stoves.
    Rule #1 is always to avoid excessive force.
     
  13. snwcmpr

    snwcmpr SotM Winner Subscriber

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    Pliers will leave marks. If you do not care, then use pliers.
     
  14. shagratork

    shagratork United Kingdom Moderator, R.I.P. Subscriber

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    @Punch

    To rectify your problem with a dented silent burner skirt, there is an excellent tutorial in our Fettlers Master Class by @threedots, here.
     
  15. cmb56 Sweden

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    I use the outer rounded part of the head on a ”polygrip” plier without teeths on the grips.
    The rounded form of the head do not make any marks but press the brass back to its normal shape.
    The plier without teeths can also be used to help adjusting the shape without to much marks.
    I also us it to adjust the shape of flame rings.

    Michael
     
  16. Lennart F

    Lennart F Sweden Subscriber

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    The generic name "polygrip" in Sweden usually is used on far more sophisticated tools than the original "Polygrip pliers" - norwegians use to say the original one has a very big mouth but isn't useful at all.(they use a local name not very appropriate to spread)
     
  17. cmb56 Sweden

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    What I meant by ”polygrip” is this type of tool.
    It is the common name in Sweden of this type of tool.
    I did not find any good English name for it when I wrote my messege.

    Mine is of another manufacturer and this one is a newer and more advanced type from Knipex.

    There where a recent topic about this tool at CPL.

    Michael

    BB83467C-A7C5-43C3-A62A-0C813ABD983A.jpeg
     
    Last edited: Jan 29, 2019
  18. goldwinger11

    goldwinger11 Chile Subscriber

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    Any Meva gurus out there? I notice that my Meva dd:4 57 has a different filler/ air bleed screw. Were they changed in that time period? My assembly looks like it's screwed into the tank and not soldered. I was dealing with some underburn issues here. Can you tell? IMG_0226.jpg
     
  19. snwcmpr

    snwcmpr SotM Winner Subscriber

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    The closest to that tool that I know is the Channellock
    Channellock is a brand, but that shape of tool has been called by that name, even when made by a different company. They do have smooth jaw version.
    https://www.channellock.com/product/415/
    11121.jpg
     
  20. cmb56 Sweden

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    Yes, Channellock is of that type.
    I have a few of these but they are a little heavy.
    They are available at work too but the Knipex ones are more popular due to their slimmer size.

    Michael