Aladdin M 1942

Discussion in 'Stove Forum' started by Yannick Michel, Aug 3, 2022.

  1. Yannick Michel France

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    Hello

    I found a nice Aladdin M 1942 US military stove and I have some question.
    I fired it and it was working correcty, I think.
    Then I tried to dismantle the pump to see the srv at the bottom of the pump. The pipe washer was new.
    I tried it again but the pump was hard to pump. Is it normal to have white gas inside the pump ??
    Sorry for my English.

    Yannick

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  2. Yannick Michel France

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    Après avoir pompé 20 fois, voici à quoi ressemble la pompe ! And there is white gas in the pump.

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  3. Ian

    Ian Subscriber

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    There should not be fuel in the pump. Unscrew the large knurled nut (red arrow} and you can remove the complete pump unit. The NRV is accessible by a hex nut on the bottom of the pump tube. If you unscrew the pump handle {green arrow} from the plunger there may be a spare pip inside. There may be other spares too. Better to make and fit a new pip.

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  4. Yannick Michel France

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    @Ian Thank you for your reply. I checked the pip and it was fine.
     
  5. Yannick Michel France

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    The first time I fired it, as you can see on the photo the stove worked fine. Then I checked the NRV which was fine and rebuild the pump… And now the pump seems not to work correctly ( fuel inside and pressure in the tube). What is the problem ?
     
  6. cottage hill bill

    cottage hill bill SotM Winner Subscriber

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    The pip is not fine. You get fuel in the pump because the NRV is leaking (unless there is a hole in the pump tube). Unless a previous owner has recently replaced it the pip will be rock hard (so will the spare ones inside the pump). Take the NRV apart and press on the pip with a wooden toothpick. The pip should have some softness to it. Order a new one from The Fettlebox or make one.
     
  7. Yannick Michel France

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    Ok I will check again.
    But is there a possibility of leakage here (red arrow) ?

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  8. Ian

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    Is the NRV operating correctly? With plunger removed you can test it with a long pin; you should be able to feel the spring compressing & relaxing.
     
  9. Yannick Michel France

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    In which side should I test it with a long pin Ian ?
     
  10. Ian

    Ian Subscriber

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    From the top, down the middle of the pump tube, so it goes through the hole at the bottom
     
  11. Majicwrench

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    In your post #7, it does not need to make a seal at your red arrow.
     
  12. Yannick Michel France

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  13. Yannick Michel France

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  14. Yannick Michel France

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    @Ian the spring is compressing abd relaxing nicely.

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  15. Yannick Michel France

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    My God ! I found my mistake. After watching a nice video, I understood that I put the spring and the pip in a bad position !! It is why I had fuel in my pump !!
     
  16. Ian

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    If the pip & spring had been in their correct positions, you would not have been able to compress the spring as in your previous picture.
     
  17. Yannick Michel France

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    You are right @Ian
     
  18. Majicwrench

    Majicwrench Subscriber

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    I love figuring out my stupid mistake, which I do often.

    Good job.
     
  19. Yannick Michel France

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    @Majicwrench ahahah sure ! A such mistake changes everything !
     
  20. Yannick Michel France

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    I tried now it is working, to boil water. 7 minutes to boil half a liter. It is not the fastest stove I have. What is the correct time for an Aladdin ?
    Thank you.