Newby with Questions

Discussion in 'Stove Forum' started by james michael, Nov 23, 2019.

  1. james michael

    james michael United States Subscriber

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    HI All

    Glad I found this site. I am a newby. Have a Coleman 502 but havent had any of these that I
    found recently at an estate sale: Svea 123 (2) Svea 123R, Primus 71 Optimus 8r and Optimus 99 all in one box!

    Svea 123R fired up (see pic) but after I shut it down it kept ooozing fuel out of the jet. Any one know why? Please advise. Also the primus 71 fired up but weak flames. Thanks in advance fo any help.

    6 stoves.JPG 123R burning.JPG
     
    Last edited by a moderator: Nov 24, 2019
  2. Ed Winskill

    Ed Winskill United States Subscriber

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    Splendid trove. Experts will be along shortly with sound lore. Welcome.
     
  3. z1ulike

    z1ulike United States SotM Winner Subscriber

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    Man, you sure landed in the right place. Nice starter collection LOL!

    Ben
     
  4. snwcmpr

    snwcmpr Subscriber

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    Could be one of two things.
    The pricker is set wrong. Remove the pricker and try the stove without it.
    If it is still leaking ...
    The tip of the spindle is worn and not sealing properly. Remove the spindle and look at the tip.

    Keep running the 71, and see if good new white gas cleans the pipes, so to speak. It may be bad seals too.
    Ken
     
  5. james michael

    james michael United States Subscriber

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    Thanks Ed Ben and Ken!
    Ken what is the pricker? The jet? Sorry for my ignorance
     
  6. Majicwrench

    Majicwrench Subscriber

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    James, the pricker is the small cleaning wire, on a 123R it is attached to the rack. Remove burner bell, remove jet (which is just under bell) and then you will see pricker wire. If you now turn control knob rack will come up and you can remove it. Re-assemble wo rack and pricker and see if stove now shuts off properly
     
  7. Majicwrench

    Majicwrench Subscriber

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    Have you ran a pricker wire into the jet on the 71? That is the first thing that needs to be done, unlike a Coleman stove, or the 123R, on the 71 the jet must be cleaned manually.
     
  8. BradB

    BradB United States Subscriber

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    Check out the videos about how to do these repairs at Bernie Dawg Cinema, on line.
     
  9. Lennart F Sweden

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  10. james michael

    james michael United States Subscriber

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    Thanks for all the input and I'll check out those videos.
    Dont have a pricker wire. Could I use a guitar string?
    I have the tin for the Primus 71..looks to be very nice and the date code for the 71 puts it at 1946!
    and have two windscreens for the Svea 123's with one cook pot.
     
  11. Majicwrench

    Majicwrench Subscriber

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    guitar string works good .006 I think. most wire brushes have about that diameter wire too.
    Removing jet on a stove you just got is always educational, if it is full of carbon or black goo clean it up good.

    And if it is gooey/black suspect it has been run on gasoline and may need a new wick, but that is a diff story.
     
  12. james michael

    james michael United States Subscriber

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    Ok I took the pricker out of the 123r and it worked great. nice long blue flames

    I used the pricker from the 123R to prick the Optimus 71 jet. It is working a bit better but still does not have the Flame length of the 123r. Any Advice?
     
  13. snwcmpr

    snwcmpr Subscriber

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    Ok, great news. It runs good AND turns off?
    There is a proper setting of the pricker back into the 123R.
    On my phone, so either you can search for, or someone will write, the process of setting the pricker with the right number of 'clicks'.
     
  14. kerophile

    kerophile United Kingdom SotM Winner Subscriber

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  15. itchy

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    @james michael
    Quite a nice find.

    Are you wondering about the difference in power between the 123R and the 71?

    There are a couple of possibilities, but keep in mind there will be variations even in what appear to be identical stoves. Small differences in orifice size or shape and wear, and differences in the condition of the wick come to mind. Very small leaks that keep full pressure from developing is another. And on starting, the amount of fuel/air space in the tank will affect performance until the heat builds up.
    I'd recommend running a few fills of clean fuel through the 71 before you make a final judgement; sometimes that is all it takes to get a decent flame an old stove .
     
  16. Majicwrench

    Majicwrench Subscriber

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    Need to check the cap gasket on the 71. Eze.

    Open fill cap, empty, put in freezer with fill cap loose.
    Have pan of warm water on stove.
    After a few minutes, remove stove from freezer, tighten fill cap, and submerge in warm water.

    Air in stove will warm and expand, bubbles will come out of whatever is leaking.

    Unlike your 502, these stove are self pressuring, they need to be air tight to build pressure and really roar.

    Oh, and don't hesitate to prick the jet several times. Removing jet, so you are not pushing crud back down below jet, is always a nice touch.