Tilley x246 valve question

Discussion in 'Fettling Forum' started by Ernie, Dec 1, 2019.

  1. Ernie United States

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    Hello everyone ..
    I have a question about my Tilley x246 lamp .
    I'm replacing all the seals in the lamp and after unthreading the valve and replacing the seal and re-threading the valve back into the fount I noticed it doesn't go in but only one full turn before it bottoms out . Does this seem correct or is there something wrong here ?
    I took it out and I can tell the seal is making contact between the valve and fount but it just seems it should go more then that .
    Thanks very much for the help .
    Ernie
    KIMG1777.JPG KIMG1778.JPG
     
  2. Ernie United States

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    This pic is the valve threaded in all the way .
    Ernie
     
  3. Ernie United States

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    I also noticed the valve has two sets of threads .. not sure why that is !
    KIMG1779.JPG
     
  4. KAB

    KAB Subscriber

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    If I understand the older Tilley system, before the cost cutting, the outer is screwed in first, but not all of teh way, then the control valve. This allows the control knob to be positioned where you want it a d not where it goes tight on the later models.
     
  5. ColinG

    ColinG United Kingdom Subscriber

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    The threaded outer collar (not sure what it's actually called right now) helps you tighten the control valve down onto the fount while making sure the pricker control knob is facing the right way. It's hard to explain but by altering how much you screw the collar in, you can make sure the black knob isn't blocked by the frame or ends up being too close to the pump. If you fiddle around I'm sure you'll see what I mean.

    Of course, getting this right and making sure the rubber seal is located correctly can be a bit fiddly!
     
  6. Ernie United States

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    Thanks very much for the replies ...
    I understand now and I was able to get it figured out .
    Ernie
     
  7. AussiePete

    AussiePete Australia Subscriber

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    Looks like you got it sorted @Ernie Welcome from Queensland Australia.
    Cheers
    Pete
     
  8. Tony Press

    Tony Press Australia Subscriber

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    @ColinG

    Tilley called the “threaded outer collar” a Locating Bush (part 337).

    Cheers

    Tony
     
  9. AussiePete

    AussiePete Australia Subscriber

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  10. JonD

    JonD Subscriber

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    Wasn't this called "clocking" the control? I remember a thread about it but I can't locate it now...
     
  11. ColinG

    ColinG United Kingdom Subscriber

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    Thanks
     
  12. Tony Press

    Tony Press Australia Subscriber

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    @JonD

    “Clocking”:


    Cheers

    Tony
     
  13. JonD

    JonD Subscriber

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  14. Ian Bingham

    Ian Bingham Subscriber

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    In order to make a seal, it is the control cock that needs to seat on the washer against the tank. The washer is put in place before the locating bush due to its diameter.

    If the locating bush is too high in its external thread, the control cock bottoms out on its own thread before compressing the sealing washer - and you have an air leak. So, best to wind the locating bush lightly all the way in to start with - and then work it up a little if the control cock knob proves to be in an awkward position for the frame.
     
  15. Ernie United States

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    Thanks everyone for the great information !
    I got it back together and holding pressure ..I'm just waiting for my new cleaning needle to arrive in the mail ...then there will be light !!
    Ernie
     

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