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Bat 2/607 - with removable Pot supports.

Discussion in 'Bat' started by ROBBO55, Dec 18, 2016.

  1. ROBBO55

    ROBBO55 Subscriber

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    Didn’t think this one would take much fettling. Replaced the filler cap seal, the burner seals and gave it a good clean out. Pumped up pressure and no leaks.

    1.JPG

    2 pint kerosene / paraffin stove.

    No model Number on stove

    2.JPG 3.JPG 4.JPG 4A.JPG

    Silent burner

    Made in GDR (German Democratic Republic)

    Steel feet made from split tube.

    Riser fixed with steel fuel pickup tube.

    Removable pot supports.

    Although the pot supports are removable the burner connection is a fibre washer (not lead) as found on the standard fixed leg #1 or #5.

    Note. The reserve cap is missing but would normally fit on the filler cap. The mounting screw thread in the cap is approx. ¼” / 6mm.

    5.JPG 6.JPG 7.JPG 8.JPG 9.JPG 10.JPG

    When I sat the trivet on the pot supports it did not centre over the burner (really bad alignment). The burner was straight so wasn’t the problem. Placed a square against the legs and found the problem. Two of the feet were not soldered on square. Photo shows the worst of them.

    So won’t use the trivet.

    10A.JPG

    OK primed the stove and I had flame. It was rather yellow and didn’t improve.

    PC010104.JPG

    Replace the jet and it helped but still yellow.

    11.JPG

    A closer inspection of the burner caps found a problem. The bottom edge the inner cap had a lip (can be seen in the photo of the caps above) that stopped the cap sitting flat. Remover the lip and the colour improved but still yellow. Now have blue flame.

    12.JPG
     
  2. gieorgijewski

    gieorgijewski Poland Subscriber

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    IMO This is proper fuel cap - without reserve cap (from Kerophile)
    Yours - is from other stove
    [​IMG]
     
  3. Normo

    Normo Australia Subscriber

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    Hi Robbo - nice find, hope it works well for you. Don't know if you're aware, but some of these BAT stoves have a brass plated steel base to the fount, mine does.

    Was first allerted to it about 12 months ago by a thread on CCS. Suggest you check yours with a magnet, if you haven't already done so.

    Norm
     
  4. gieorgijewski

    gieorgijewski Poland Subscriber

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    :)
    ...its me

    but i have "good" - with brass bottom - too
     
  5. gieorgijewski

    gieorgijewski Poland Subscriber

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    [​IMG]
    here - Hipolito - f. cap
     
  6. presscall

    presscall United Kingdom Subscriber

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    Excellent diagnostics and fettling @ROBBO55. Brass or brassed steel font I wonder.

    John
     
  7. gieorgijewski

    gieorgijewski Poland Subscriber

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    I am wrong -
    Bat 2

    Bat 2.jpg
     
  8. ROBBO55

    ROBBO55 Subscriber

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    @Normo @presscall
    G'day and thanks for the comments.
    I have checked again and good news the base is brass :D/

    @gieorgijewski
    Thanks for the picture above of a stove with this style of filler cap and reserve cap. I now know what I am looking for but think I will have trouble finding one.

    It is definitely a strange design for a reserve cap as there does not appear to be much thread.
    FYI the hole in the filler cap is blind and does not go through the cap.
     
    Last edited: Dec 19, 2016
  9. gieorgijewski

    gieorgijewski Poland Subscriber

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    Lets try to solve problem:

    I'am expect - there is no problem for me to get No 1 f.cap with external
    but - I have no possibility compare it with No 2 tank
    ---------------
    Check - Yours possibility - to comparing Yours burner in No1

    ---------------
    or We need - someone Who has two versions

    on ebay is now this document:
    Prospekt BAT Kocher 1965 1 2 2/591 2/607 55/2 55/1
     
  10. ROBBO55

    ROBBO55 Subscriber

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    @gieorgijewski

    Thanks for the offer.

    P1010171.JPG

    If I understand correct,the question is will this cap combination fit my stove?
    Answer is No. :(
    The f. cap fits but the reserve cap is too small (13mm diameter thread). The thread on my version of the stove is 14.5mm diameter (14.5x0.75mm).

    If you happen to come across one keep me in mind.[-o<

    Thanks for the information. It confirms that the Bat model 2/607 is a collapsible stove with silent burner and what I have is just one of the variations of this model. :lol:

    Thanks for the help.
    Martin
     
    Last edited: Dec 19, 2016
  11. gieorgijewski

    gieorgijewski Poland Subscriber

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    yes "my" has 13 mm.
     
  12. Radler

    Radler Switzerland Subscriber

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    Hello Martin

    This actual ebay ad shows (10 pictures) the type you have and all original parts.
    Btw. how is the burner to tank connected?

    Regards
    Radler
     
  13. ROBBO55

    ROBBO55 Subscriber

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    Thanks @Radler
    Here are photos of the burner and riser connection. I don't know how many times the fibre washer would last being taken on/off. A lead washer under the priming cup might work??

    14.JPG 15.JPG 16.JPG 17.JPG
     
  14. Radler

    Radler Switzerland Subscriber

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    Hello Martin

    Thanks for the pictures. I expected something different than just a standard connection because of the travel cap parking thread. :(
    I have the same doubts as you about the fibre gasket. Most of them only survive ones or twice unscrewing of the burner. A lead gasket is only usable in a special connection where it can't creep out and maybe the temperatur could even reach the melting point of lead (330°C).

    There are two reasons for collapsible brassies:
    To make it possible to transport a filled tank for camping and travel purposes.

    The other reason is not one for the user, but for trade. There was a high interest to send as many stoves as possible in one packing case to countries far away. These stoves needed no special connection with a lead gasket neither a travel cap, unmounting the legs and the burner was good enough. In catalogues for the trade it is sometimes mentioned how many stoves fit into one box. The intention was obvious a domestic stove for export. The industry in the late GDR produced a lot of things for a market in new developing counties with a socialist economy.

    I hope to get a GRD made BAT stove like yours next year. I already have one, but "Made in Germany" with steel bottom and fixed legs. No rust yet, but I better keep it on the shelf.

    Best Regards
    Radler
     
  15. ROBBO55

    ROBBO55 Subscriber

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    @Radler
    G’day Radler

    Sorry for the long delay in replying. Christmas, New Year and family.
    Making the stove collapsible to make the box smaller for packing and export does make sense.
    (This is just me thinking aloud)
    But why have a travel cap at all if the stove was not intended to be disassembled and transported with fuel in the tank? For initial transport before assembly the tank does not need to be sealed. Then once the stove is assembled why keep the travel cap mounted on the stove? If they did want to keep dirt out of the tank during the initial transport why have a machined brass cap when a plastic one would do for a one off initial transport and be much cheaper to produce?

    In the e-bay link above it’s not clear but appears to have the same burner to tank connection as this stove (14.5mm with long riser, not 13mm with short riser), The box is marked 2/591 (designation for collapsible with roarer burner?)

    Link to Bat discussion https://classiccampstoves.com/threads/bat-stove-versions.34417/

    Many ideas but few answers at this stage.

    I hope you find the Bats you are looking for soon.