Inner cap Primus No 57

Discussion in 'Stove Forum' started by ton visser, Nov 8, 2018.

  1. ton visser

    ton visser Subscriber

    Offline
    Joined:
    Jan 6, 2016
    Messages:
    36
    Location:
    Wormer, Holland
    God morning, I bought a Primus 57 a few weeks ago, in rather good shape.

    [​IMG]

    The pumpleather was dry, easy to fix. The cleaning needle was gone, no big problem.But when I started reading on ClassicCampStoves I found out there should be a rather special inner cap on the burner, where on my 57 was a common inner cap beneath the correct outer cap.
    It should be inner cap No 4679.

    Then I began to create something I thought might work but it did not, there were flames aside trough the four holes from the burner house.
    You can see a white spot in the next picture, that is one of the four openings in the burner.

    [​IMG]

    [​IMG]

    [​IMG]

    As you can see I made some sort of tube, widened one end a bit in order to make it look like a No 4679 inner cap.
    I used a common inner cap and slided the home made tube in it.
    The problem is it lies to deep into the burner, a No 4679 inner cap seems to have some sort of ring and I suppose that ring is as wide as the outer cap so no gas should leak aside.

    I suppose it would be to easy to ask where to buy a number 4679 inner cap?
    But maybe one of you have a suggestion how to solve this.
    Are there more stoves using the same burner?

    Regards,

    Ton.
     
  2. Nicola Francesco Elia

    Nicola Francesco Elia Subscriber

    Offline
    Joined:
    Nov 13, 2016
    Messages:
    4
    Hi Ton,

    I am confident about the fact that Phoebus 625 and the russian shmel stoves use the same inner and outer caps style as Primus 57/107/110.

    I am looking for inner and outer caps too, but at the moment I wouldn't like to buy a complete stove just to get the caps for another one. So I am interested too if someone knows where to get some of these parts.

    Nicola
     
  3. Afterburner

    Offline
    Joined:
    Mar 13, 2014
    Messages:
    1,641
  4. Nicola Francesco Elia

    Nicola Francesco Elia Subscriber

    Offline
    Joined:
    Nov 13, 2016
    Messages:
    4
    Fogas doesn’t have any, basecamp too for what I remember...
     
  5. Afterburner

    Offline
    Joined:
    Mar 13, 2014
    Messages:
    1,641
    Maybe then DIY is only option. :doh:
     
  6. ton visser

    ton visser Subscriber

    Offline
    Joined:
    Jan 6, 2016
    Messages:
    36
    Location:
    Wormer, Holland
    Hi, now I tried to get it going using a copper ring in order to lift the inner cap a little bit but it is not perfect yet:

    [​IMG]

    What would be the main reason the flame is that yellow on top?
    And because Afterburner mentioned the Primus alcohol burner No 3025 I began to wonder am I using the right fuel for this kind of burner? And is it really a lipstick burner with the removable jet?
    I use what we call petroleum in Holland, would that be kerosine on this forum?
    Can I find some sort of list here or elsewhere on the internet where to read which fuel is suitable for which burner or lamp?

    Many questions, but as it is I thought give it a try, have a nice day.

    Regards,

    Ton.
     
  7. ton visser

    ton visser Subscriber

    Offline
    Joined:
    Jan 6, 2016
    Messages:
    36
    Location:
    Wormer, Holland
    I meant but as it is Sunday I thought I give it a try.

    Ton.
     
  8. kerophile

    kerophile United Kingdom Subscriber

    Offline
    Joined:
    Sep 23, 2004
    Messages:
    10,205
    Last edited: Nov 11, 2018 at 11:14 AM
  9. kerophile

    kerophile United Kingdom Subscriber

    Offline
    Joined:
    Sep 23, 2004
    Messages:
    10,205
    Orange flames or glow, such as you show is generally the result of burning a fuel-rich mixture in your burner.
    On rare occassions sodium or common salt contamination can also give you a yellow flame... think of the colour of sodium lights.
    Best Regards,
    Kerophile.
     
  10. ton visser

    ton visser Subscriber

    Offline
    Joined:
    Jan 6, 2016
    Messages:
    36
    Location:
    Wormer, Holland
    Thank you for the answers so far, I will keep fettling.
    The most frustrating fact of the day is I found an innercup No 4678 on a Swedish website, unfortunately I am in need of a number 4679.

    To be continued.

    Regards,

    Ton.