Optimus 111b fuel gas or kero?

Discussion in 'Stove Forum' started by rbhodges, Jan 9, 2011.

  1. rbhodges

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    I am hopefuly soon to be the new owner of a nice embossed case 111B. I am not sure what was the feul for this stove white gas, kero, or both? thanks

    Rick
     
  2. Knight84

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    White gas also known as Coleman fuel only. The non return valve in the bottom of the pump tube has to be In great shape.

    Jeff
     
  3. Doc Mark

    Doc Mark SotM Winner Subscriber

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    Hi, rbHodges,

    Jeff is absolutely right. Your new 111B is a single fuel stove, and that fuel is Coleman fuel. And, as Jeff has so sagely advised, please do not try to light up your stove until you have learned how to replace the NRV on it!! If that valve has hardened, which most of them do, then your stove is unsafe until you replace the NRV with a new pip. Easy to so, once you learn the in's and out's of it. You can find all that info right here at CCS! You have a very nice stove, and I've used them for many, many years with complete satisfaction!! Just, PLEASE, replace that NRV, oil up your pump leather, and replace your fuel cap gasket before firing it up!! You will be very glad you did, and your 111B will then last you many years before needing the same stuff replaced again. Take care, and God Bless!

    Every Good Wish,
    Doc
     
  4. rbhodges

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    Am I correct in that the NRV is the valve at the base of the pump?
     
  5. Knight84

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    That is correct.
    The NRV is the one way valve at the bottom of the pump.
    The problem is there is a rubber pip/seal in there that with age becomes hard. The seal then doesn't do its job and becomes a two way valve. Coleman fuel/white gas is a lot more volatile. So there is a possibility of the valve leaking while the stove is running and you have a fire ball on your hands. The stove is safe to use as long as the seals are in good order.

    To remove the valve you need a tool like this One (link)
    or make one from some steel bar like rebar. There are several posts on this.

    Cheers,

    Jeff
     
    Last edited by a moderator: Jul 1, 2015
  6. rbhodges

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    Thanks for the advise I'v got the parts coming, and will fab up a wrench for the valve. I'll keep you posted on my progres.

    Rick