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Tx200 mk3 short stroke

Discussion in 'Anything Airgun Related' started by ste, Mar 20, 2014.

  1. ste

    ste Posting Addict

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    Hi all I have a mk3 tx and a short stroke kit
    Now I have read a lot about removing the piston weight ect [​IMG]
    Do I use this as it is or can I put the original seal on to the short stroke
    What are your views guys
    And I'm not wanting to buy a mk1-2 piston :)
    Thanks all
     
  2. RichieRich

    RichieRich Ping!

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    You can use this as is, it already has a o-ring seal on it
     
  3. ste

    ste Posting Addict

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    I did think that but will it be as affective as the standard seal ?
     
  4. RichieRich

    RichieRich Ping!

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    Should be, if not, you can always pop the standard one on if it will allow
     
  5. ste

    ste Posting Addict

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    I've just heard a lot about taking the piston weight out to make it smoother.,
     
  6. JD

    JD Donator

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    Without the weight Ste, your need to make up the loss of mass with a stronger spring.
     
  7. ste

    ste Posting Addict

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    Cheers john I just thought as I was extending the piston and thought that there would be a lot more pre load so taking the weight out would be the same as similar size may be wrong
     
  8. Chippy1988

    Chippy1988 Busy Member

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    Ste by using the extension your not altering the preload, you are basically reducing the travel of the piston.

    James
     
  9. Nickg

    Nickg Busy Member

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    The piston extension will increase the pre load on the spring, this will compensate for the shorter stroke, I used to run a 10mm extension with the vortek o ring kit that you have, and it was very good however when I tried it by replacing the piston weight with a delrin top hat it was horrible, it slammed and was in accurate
     
  10. ste

    ste Posting Addict

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    So did you keep all internals the same just added the extension nickg
     
  11. JD

    JD Donator

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    The piston weights come in different sizes, depending on what calibre the Tx is,

    which cal is yours Ste ? what ever the case, your going to need to play around with the internals,

    to set the rifle up to how you like it shooting.
     
  12. ste

    ste Posting Addict

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    It's 177 mate and as somone said it made it worse with a replacement top hat so test test and more testing stripping add remove and more test all I can do lol
     
  13. Nickg

    Nickg Busy Member

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    Yes I just added the piston nose ( 10mm) to start with, with the original seal, and it produced 10.5 ft lb, They have a very nice shot cycle at this power and its plenty for target shooting, I then went to the o ring, which speeds up the shot cycle and again very nice to shoot. Then it all went a bit silly and now have ally o ring piston and very short stroke, but that's a different story;)
     

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