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Thread: fixing Dominator reg problems

  1. #1
    mfgwwh@yahoo.com's Avatar mfgwwh@yahoo.com
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    Default fixing Dominator reg problems

    I read on another forum that the SA shooters had found a fix for the changing poi with the reg problem. I was searching this sight to see if it was posted here or if there is someone that can email me and let me know what i need to do.

    thanks for any help

    mfgwwh@yahoo.com
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  2. #2
    Protea FT Team '08

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    Wally can tell you. The old regs plunger was tapered.you need to machine the taper off.
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  3. #3
    mfgwwh@yahoo.com's Avatar mfgwwh@yahoo.com
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    I have bought the "new fixed" walther reg which didn't help much still have fluctuations in fps from day to day and fill pressure's. Which ever reg that can be made to work will be great, I still have both the original 2 pin reg and the new 4 pin reg. I work in a machine shop so any mods will be easy to accomplish.

    thanks
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  4. #4
    Protea FT Team '08

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    At worlds this year we were told the Walthers now have a 5th generation regulator. Might be worth your while to contact the factory
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  5. #5
    Inactive Member

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    There is no ''5th generation'' regulator. Wyan was told this by the factory about 3 weeks back... Wally should be your best bet in fixing the problem.
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  6. #6
    mfgwwh@yahoo.com's Avatar mfgwwh@yahoo.com
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    Thanks I read I think the whole internet looking for the "5th generation" with no luck. I emailed wally to ask his help.
    thanks
    Last edited by mfgwwh@yahoo.com; 28-12-08 at 04:13.
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  7. #7
    Inactive Member

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    I think it was some EV owner who just wanted to stir....LOL (just joking)
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  8. #8
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    The problem isn't the shape of the valve, it's what it sits against. Walther now do replacement parts for this problem, but it may be the valve seat is still too soft depending on the temperature extremes your looking at. My standard walther valve set didn't move at all, all year through the Grand Prix season, however it shifted when I started the winter league on a cold 5 deg C day.

    I know some other shooters in the team are using taper valves with harder valve seats than walther use, and are happy.
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  9. #9
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    Quote Originally Posted by mfgwwh@yahoo.com View Post
    I read on another forum that the SA shooters had found a fix for the changing poi with the reg problem. I was searching this sight to see if it was posted here or if there is someone that can email me and let me know what i need to do.

    thanks for any help

    mfgwwh@yahoo.com
    Hi Bill. If we help you with your problems will you help us to get stuff from the USA. Not too many Americans on this forum. Welcome.
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  10. #10
    mfgwwh@yahoo.com's Avatar mfgwwh@yahoo.com
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    Default got the reg whipped

    I tore it apart changed all the o-rings to buna, milled the seat flat and made a new seal out of teflon, shortened the poppet valve in the reg, and made a new firing valve seat out of delrin.















    I shot the first string in the basement the gun was 66deg, second after I sat the gun outside the gun was 34deg, third warmed it up to 92deg. I spaced out timing between all the shots to make sure the reg wasn't leaking and building pressure. This thing drove me nuts I refilled to 3400 between all strings. I used a CED 2 chrony which is awesome no errors so much easier to get data on the computer and no dropped shots.







    My next project is to order a barrel blank and make a longer barrel and see if I can get up to 20fpe I am shooting at 15.5 now with the 19" stock barrel.




    String 1
    813.9
    814.7
    808.8
    814.3
    814.5
    812.5
    814.4
    811.2
    815.2
    818.4
    810.8
    812.1
    818.1
    819.8
    811.6
    813.1
    811.4
    815.7
    818.9
    814.3
    812.4
    High: 819.8
    Low: 808.8
    E.S.: 11
    Ave.: 814.1
    S.D.: 2.9

    String 2
    808.6
    804.4
    803.6
    798
    804.6
    798.5
    797.6
    801.3
    798.9
    795.7
    803.1
    800.8
    801.7
    807.2
    807.5
    799
    807.9
    802.9
    807.3
    801.1
    808.7
    High: 808.7
    Low: 795.7
    E.S.: 13
    Ave.: 802.8
    S.D.: 4

    String 3
    800.2
    801.1
    802.6
    800.1
    809.2
    802.6
    805.5
    801
    803.8
    802.3
    803.7
    805.3
    803.7
    808.8
    807.5
    803.2
    804.2
    806.6
    806.6
    805.5
    809.1
    805.9
    802.4
    808.5
    804.6
    804.8
    801.8
    806.4
    802.8
    809.8
    803.2
    805.7
    807.3
    806.3
    808.5
    804.4
    806.1
    809.5
    806.8
    807
    809.8
    804.5
    812.5
    809.4
    808.3
    807.1
    811.3
    808.7
    809.2
    813
    807.7
    808
    809.8
    809.4
    809.1
    803.7
    807.3
    810.6
    808
    807.9
    809.6
    811
    808.2
    809.3
    810.8
    803.7
    804.6
    797.1 off reg
    794.3 off reg
    784.2 off reg
    High: 813
    Low: 800.1
    E.S.: 12.9
    Ave.: 806.5
    S.D.: 3.1

    overall avg 807.8
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  11. #11
    Marksman
    The Guru

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    would have been cheaper to buy a Steyr
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  12. #12
    mfgwwh@yahoo.com's Avatar mfgwwh@yahoo.com
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    I thought a Steyr cost more than $1000??? I bought the gun used from a owner of a local gun shop. I have shot Steyr wasn't super impressed. If I was going to have a Steyr it would be a AZ Steyr and that's no drop in the bucket.
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  13. #13
    Inactive Member

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    Ha! Ha! There jou have it QUIDO!!!!!!!!!!!!!!!!!
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  14. #14
    Protea FT Team '06/'07/'08/'09/'10/'11/'12/'13/'14
    National FT Champ '05/'08

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    after 4 years and 50000+ shots my Walther had a problem with poi ,took it to Wally replaced the seals and its on the money again, R40 if i recall correctly for the seals
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  15. #15
    Protea FT Team '07/'08/'09/'10/'11/'12/'13
    National FT Champ '09/'13

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    After more than 65 000 shots, my Walther still shoots the same small groupings, as it used to do, and it is still on par with the new Steyr. There is not one, that stands out, to be more accurate than the other.

    There were never a fault on the regulaters of the Walther's, as myth want's it to be. It was the shape of the plunger. After removing the tapered angle, and making it flat, the problem was solved. I did not change the seal on which it seats, it is still original. Maybe there is a better material to use for it, I don't know. I still shoot with the original regulator that the rifle came out with.

    As far as I know, the SA Bench rest record, still stands behind the name of my Walther.
    Last edited by Piet Skiet; 26-01-09 at 12:50.
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