Phoebus 625 burner

Discussion in 'Fettling Forum' started by sefaudi, Jan 29, 2009.

  1. sefaudi

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    Hi All,

    I have a Phoebus 625 in front of me. After fixing its pumping piston and NRV, I saw that there is no way to completely turn the stove off as the regulating valve on the burner doesn't close fully. ( I should warn our new members about this matter that any stove consuming gasoline (benzin), must be controlled by a regulating valve. If this valve is not working properly, DO NOT LIGHT your stove. Otherwise you would be unable to turn your stove off. DO NOT try to release air in the tank as this will definitely create a fire bomb!)

    I took the nipple out and saw cleaning needle had a shape similar to anything but completely different from a real cleaning needle. So I replaced it with a good one. Than tried to close the valve without the needle but no success. 625 stoves' have different type regulating burner than conventional opti type stoves have. Those burners (optimus types) can be controlled fully without a cleaning needle.

    I tried to get the valve rod out but again no successr ! It is like something is highly holding the rod stronger than me !

    Could anyone show disassambled case of such 625 burner or help me to see any drawing showing the structure of that?
     
  2. aktopp

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  3. Grigoriy

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    turn regulating spindel counterclockwise
    if the rod is not moving up, forget about this stove

    racks on a spindel or rack on a rod are cutted out, or both.

    its usual problem of this stove after incorrect closing
    http://foto.mail.ru/mail/gve-82/shmel/37.html
     
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  4. sefaudi

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    Hey Arne many thanks for that exploided view directions, very much useful.

    Dear Grigory, my problem is not rod's movement. When I turn it cleaning needle is gettin out and in hence it is working. Hovewer I cannot fully close the valve. Fuel is still coming out. Can you tell me how this valve closes? I see there is nothing similar to needle valve structure.
     
  5. Grigoriy

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    it is closing with the end of the rod
    there is half a cone on it to center its position in a hole.
    only 2 details.

    I cannot understand why you can not take the rode out if it is moving :-k very strange
    turning counterclockwise move the rode up and you can take it out.

    hole of closing valve might be destroyed with rust. But why you can not take the rod out!
     
  6. Grigoriy

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    picture
    1233322666-rack.jpg
     

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  7. Bom Bom Bom Bom

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    Hi Sefa,

    You don't state how much fuel is coming out. However, based on Grigoriy's excellent diagram (I have a BNIB 625 and have never dismantled it) here's a couple of suggestions that immediately come to my mind:

    1) Maybe someone in the past has tried to change the cleaning needle (which doesn't look like it should be changeable) and ruined the cone?
    2) There is a burr on either the cone or the surface is mates to left from the manufacturing process?

    I'm afraid I can't help with removal - I'll have a look at mine over the weekend.
     
  8. Salar and Stove

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    Hello Sefa

    The valve rod has nothing (directly) to do with turning the stove off.

    It's alone the conical upper part of the cleaning nipple and the lower part of the niple, which has to make a close fit. If there are dirt or markings - clean it up/polish the two part together.

    The problem dismantling the valve rod, is because
    the "graphite" packing is made of more paper than graphite. I have removed the packing with Dremel and small drill - but take care - do not make any markings on the valve rod!

    Don't use violence tightening the valve rod too much, or you will strip the teeth's on the valve rod or on the lover part of the cleaning needle.

    You can buy new complete burner from Germany at 21,- Euro.
     
  9. Mikespike

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    Hi Sefa,
    You know this is a stove from Austria so let me comment (as brother Tahsin and myself have some of these stoves in our garages..)
    There are indeed different versions of the stove, the older ones are much better.
    The newest ones (some used or at least bought by the german army) have different needles than the old ones -like shown in the well made drawing. In some cases they don't go out from the burner (to avoid that a dumbass soldier loses it??).
    Other change is the way the burner is screwed to the tank, I attach a picture. The new versions burner might be unable to detach from the tank.
    If the cone in your case is damaged you might end up with this leaking stove.

    If you can show a pic of your stove that would be helpful. I have some spares around and am happy to help
    cheers
    Michael

    1233355460-Phoebus_625_D__sennadel.jpg 1233355485-Phoebus_alt_und_neu.jpg
     

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  10. Grigoriy

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    Lads
    There is only one tipe of Phoebus 625 in a stove reference gallerely, and all photos are very small and with wind shield. I think it should be improved :roll:

    I have 2 variants of Phoebus clones
    in one closing element on a rod, on other on a needle keeper like on a Mikespikes photo

    Do such modifications take place on genuine stoves?
     
  11. motorang

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    Sven here says:
    http://www.pelam.de/petromaxforum/thread.php?threadid=6053

    There are at least 4 different burners on original Phoebus 625 stoves ... they were made for many years and so the design changed a bit.

    Here:
    http://www.pelam.de/petromaxforum/thread.php?threadid=5640&sid=&hilight=phoebus+and+625
    AndreasGG says that there are at least 3 types of valves ...

    Picture: http://www.pelam.de/petromaxforum/attachment.php?attachmentid=14420

    Older versions: part A-34 can be removed after turning the spindle to the left.
    Latest version: the spindle only can be removed while at the same time removing the spindle. He also guesses that this should prevent soldiers from loosing stove parts ...

    I uploaded some 625 pictures here:
    http://s10.photobucket.com/albums/a143/motorang/stoves/

    Andy
     
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  12. motorang

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    Addition (could not edit post any more):

    Older versions: part A-34 can be removed after turning the spindle to the left. The valve is the cone under the cleaning needle (TOP of the rack).

    Latest version: the spindle only can be removed while at the same time removing the spindle. He also guesses that this should prevent soldiers from loosing stove parts ...
    The valve is a cone on the BOTTOM end of the rack, thus preventing he rack from being removed, without removing the spindle.

    By having a close look at the upper end of the rack you should be able to determine which version you own.

    Andy
     
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  13. Grigoriy

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    :D
    thank you motorang
    P.S. I am buying garage with Dnepr inside ;)
     
  14. sefaudi

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    Hi Friends,

    Many many thanks for your kind attention to my difficulty. I could spare time to take some photos of stove's burner but will do this shortly.

    However beforehand I can say that stove's burner is similar to the one seen left side.

    R7713286.jpg