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Target Tune India piston / compression cylinders

Discussion in 'Anything Airgun Related' started by Jackroadkill, Jun 19, 2014.

  1. Jackroadkill

    Jackroadkill Donator

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    Just after views on the TTI piston and compression tune set for a HW77 / 97. I've seen the Youtube vids but am more interested in what people who actually use one have to say about them. I've got a plan for a dog's-danglies from-the-ground-up rebuild / tune based on a blue laminate 97 and this is one of the options I'm thinking about.

    Likewise I'm keen to hear if there are alternatives to the TTI system - am already considering buttoning etc.

    Cheers,

    JR
     
  2. JD

    JD Donator

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    Welsh Willy was the importer of these parts JK, but I heard the bloke making them passed away ?

    Phoning WW would be your best bet.
     
  3. T 20

    T 20 Busy Member

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    Last edited: Jun 20, 2014
  4. Jackroadkill

    Jackroadkill Donator

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    Thanks Mick - that's a shame.

    I guess this means I'm considering other options, as I've never seen a TTI piston / comp cylinder for sale second hand.
     
  5. T 20

    T 20 Busy Member

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    Fear not, all is not lost JRK.

    A well known tuner is having a batch of sears machined to fit the Weihrauch Rekord trigger unit --- these will allow the use of the TX200 or Walther LGV piston in the 77 or 97.

    So we'll be able to have a rotary pistons on full bearings in our Weihrauchs if everything goes to plan. :)



    All the best Mick
     
  6. Nickg

    Nickg Busy Member

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    Hi Mick , is this wonky donkey, as I would be interested in these
     
  7. T 20

    T 20 Busy Member

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    Yes Nick

    Dave mentioned them a while ago but he's been unwell since then, which is why he couldn't make the Boinger Bash.

    He feels that taking a dremmel to the Weihrauch sear isn't the best way of doing things so he's having a batch of special sears produced that should be a lot better.



    All the best Mick
     
  8. Nickg

    Nickg Busy Member

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    the standard sear is through hard , so you can alter them and still keep the hard surface, your right the dremel is a bit hap hazard, but a surface grinder would be ideal, if a little expensive :(
     
  9. Jackroadkill

    Jackroadkill Donator

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    That's very interesting; a TX set-up might be nice, especially with a lightened piston...
     
  10. T 20

    T 20 Busy Member

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    Hi Nick

    I just dremeled the sear on my HW35 when I fitted an LGV piston to it but I understand why Dave is having them made as the tangs could do with being a bit thicker.



    All the best Mick
     
  11. T 20

    T 20 Busy Member

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    I'd rather use the LGV piston as it gives a better choice of seal, the pistons aren't a problem though as NickG could make you one. :D



    All the best Mick
     
  12. Jackroadkill

    Jackroadkill Donator

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    Might have to be one of those, then!
     
  13. JD

    JD Donator

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    Hi Mick,

    Wouldn't the 77/97 com tube need machining down in length, to fit a TX or LGV piston,

    and could a standard Hw seal be used on a LGV, without any mods to the piston face ?

    Atb

    John.
     
  14. T 20

    T 20 Busy Member

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    Hi John

    I honestly couldn't tell you for sure on the lengths of piston verses cylinder without pulling a couple of guns apart to measure them.

    The biggest headache with fitting a rotary piston to a 77/97 is gaining a bit of clearance on the piston OD to allow the cocking foot to clear.

    HW 25mm seal and Walther LGV seals are a straight swap.


    My next project will be a rotary piston in a HW 35E at 30mm bore x 71mm stroke --- that's after I finish my Diana 52 and a pair of 85s.



    All the best Mick
     
  15. Nickg

    Nickg Busy Member

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    I topped mine and dropped the lot back, so I have the same amount of engagement
     

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