Primus No7

Discussion in 'Fettling Forum' started by jb101, Oct 28, 2020.

  1. jb101

    jb101 United Kingdom Subscriber

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    Finally managed to get the No7 up and running (see NRV thread) & a big thanks to Ian for sending a spare NRV.
    The flame does not seem right , could it be a worn jet ? I’ve used a pricker on it which helped but still not getting an even flame , any suggestions to remedy it .Flame shots below -
    Regards
    James
    DFF36C44-D9C1-439A-9D08-3C3E9E49E3AA.jpeg ED52924F-6D7B-412E-91BB-96DF56CF03EA.jpeg A34876F1-73E9-4773-91E9-3F669F7A64BB.jpeg
     
  2. Sternenlicht

    Sternenlicht Subscriber

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    Hej @jb101
    I would say the flame ring or sth. similar is missing.

    Ciao, Bastian
     
  3. jb101

    jb101 United Kingdom Subscriber

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    Yes the flame ring is missing, I have made one up from an old tin can but still the flame is not even :(
     
  4. Sternenlicht

    Sternenlicht Subscriber

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    Or the jet is worn, or the tubes are partially blocked or polluted or a combination of both?
    Ciao, Bastian
     
  5. Twoberth

    Twoberth United Kingdom Subscriber

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    How does the fuel get across from the riser tubes to the nipple tubes?
     
  6. igh371

    igh371 SotM Winner Subscriber

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    First stop must be to try a new jet before delving and further. One step at a time, process of elimination.
    Ian:thumbup:
     
  7. jb101

    jb101 United Kingdom Subscriber

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    Hi Ian
    What other jet(s) can i use for this as this uses the 4747 one which i think is larger than the normal size jets ,also any advice as to where to get one from?
    Regards
    James
     

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  8. jb101

    jb101 United Kingdom Subscriber

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    Through the top casting I presume as there are no other connections


    DSC_2564.JPG DSC_2565.JPG
     
  9. Twoberth

    Twoberth United Kingdom Subscriber

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    Thanks. I couldn’t see the the cross tubes in the flame shots.
     
  10. igh371

    igh371 SotM Winner Subscriber

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    Worth trying Mike at Base-camp first, some larger blow lamps used this jet too I think.
     
  11. jb101

    jb101 United Kingdom Subscriber

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    Thanks ,just sent an email to them.