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Hw80 replacement spring

Discussion in 'Anything Airgun Related' started by dr.tigger, Aug 22, 2014.

  1. dr.tigger

    dr.tigger Well-Known Member

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    I've been offered an old 80 with a heavily worn spring. Can anyone advise me on a new one. Titan recommend a no 12 but I've heard people having problems with them.
     
  2. mattyts

    mattyts Donator

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    You need to cut the no 12 down,people seem to think that Titans are a direct drop in replacement but they aren't.
     
  3. kal el

    kal el Posting Addict

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    i got the titan xs no2 for my 80, quick chop flatten and polish and its running a lovely smooth 10.9, i took 5 coils off, but always chrono it to make sure its under.

    i found it to shoot very well at 10.9 with a tbm kit off ebay or on here and i cut a section of can out polished it with alusol and wrapped the piston and spring, and gives a dull thud with very little recoil for about £42.

    mine was deffo the no2 spring though
     
    Last edited: Aug 22, 2014
  4. kal el

    kal el Posting Addict

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    also if it needs a reblue ive just tried the balistol cold blue and found it better than the birchwood casey superblue. very easy to do at home and you end up with a like new blue with better internals for very little money
     
  5. 177

    177 Donator

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    Titan number 2 is the HW80 drop in mainspring, but as above, make sure you shorten it before dropping it in or you will find grunt effort increased, recoil will be nasty, noise will be horrible, shot cycle even worse, and power will be illegal.

    Chrono is your friend...

    Springers tend to run better around 10.5 FPE or thereabouts. Typically I rarely take mine significantly over 11, with 11.2 or 11.2 being the highest I aim for. My HW99s runs at 10.4 at the moment and that seems to be the sweetest spot for it in its current configuration. My HW95 slides along at 11.1 and my last HW80 was a joy to shoot at 10.9, but ti took a lot of work to get it shooting how I wanted it to.

    Keeping an eye on power output is one small part of sorting out a springer - much more thought and effort is required to figure out a combination of shot cycle characteristics in conjunction with power.

    Have fun with it :)
     
  6. dr.tigger

    dr.tigger Well-Known Member

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    Consensus seems to be no. 2 with a few coils off. Time to YouTube spring chopping.
     
  7. darklord

    darklord Can’t beat a tx200 at 30m

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    i would not touch another titan. waste of money kiosks like a mule.
     
  8. sharpsman

    sharpsman Pro Poster

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    I only ever fit standard factory uk springs to hw80's anything else just seems a waste of time and money, even with next to no preload from the end cap they are always borderlining 12ftlb.
     
  9. mattyts

    mattyts Donator

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    Cut with a rotary tool if you have one,a dremel with the cut off tool makes short work of it,afterwards,heat it up,flatten it then grind and polish it flat.
     
  10. dr.tigger

    dr.tigger Well-Known Member

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    How much do you need to heat it. Will a propane blow torch do it?
     
  11. mattyts

    mattyts Donator

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    Until it becomes soft enough to flatten down,torch should be capable.
     
  12. dr.tigger

    dr.tigger Well-Known Member

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    Fantastic. Thanks very much. A couple more questions.

    Power bands and top hats. Do they work or is a polished spring/washer combo enough.

    Same with a spring sleeve?
     
  13. JD

    JD Donator

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    A Titan No10 and a Tinbum spring guide set to fit should be all you need, you might find that you have enough room to fit a extra piston sleeve, ptfe, steel or one cut from a 6 pint mlk container.

    Due to Titan springs being a powerful b****r, you can swap different spring sizes around more that people think.
     
  14. kal el

    kal el Posting Addict

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    i found the delrin drop in better as its a softer compound than metal, so absorbs rather than twanging and rattling away.

    i think if you have a chrono, few simple tools, and even a b&q gas torch, jus he cannister one will suffice, home tuning is rewarding and gives you an insight into he workings
     
  15. kal el

    kal el Posting Addict

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    get the cut end a nice deep cherry red, use a scrap bit of wood to get i pressed flat and quench in a bit of oil, i used engine oil
     
  16. Mrman

    Mrman Donator

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  17. Meteor62

    Meteor62 Major Poster

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    Ballistol blue works awesome but will wear off as soon as you use it.
     
  18. kal el

    kal el Posting Addict

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    great, only done it last week. i havent had it out yet.
     

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