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Bsa Regulator Disassembly - How?

Discussion in 'Technical' started by Commander M, Nov 12, 2021.

  1. Commander M

    Commander M Engaging Member

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    This is the old BSA reg from the "Dark Star"...

    ..anyone got any idea how it comes apart? Curiosity is getting the better of me. IMG_20211112_175152_9~2.jpg IMG_20211112_175134_1~2.jpg
     
  2. ratsnan

    ratsnan Busy Member

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    Found this on an earlier Tech question" You will have a hard time stripping down the standard Bsa gold star reg. Bsa made all the capping from brass they are all taper ends you have nothing to grip" Hope this helps , looks like you have to somehow unscrew the tapered end caps.
     
    Commander M likes this.
  3. ajohn

    ajohn Chewing Things Over

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    :) If you own a Steyr or Anschutz, are a serious shooter and the regulator acts up you buy a new one.

    BSA Goldstar SE Full O-Ring Seal Kit

    This is a full o ring kit for the BSA Goldstar SE air rifle / airgun.
    Includes regulator o-rings

    So it can be done except these are probably the external ones

    Why worry. What ever you buy will have to go to one of a number of people for work to make it "competitive". Usually around £250. Worry about it when you need too. Costs just the same and will replace the regulator.
     
  4. Commander M

    Commander M Engaging Member

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    Reg is already replaced and rifle is shooting beautifully - I just want to pull the thing apart to see IMG_20210928_163750_2.jpg what's inside!
     
    Blackmax likes this.
  5. DM80

    DM80 Engaging Member

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    You need to mill flats in the brass parts at the front on the reg as to undue them or butcher them using a pin punch as most do as for the rear brass coller this can be simply undone with a decent stud extractor, internally it uses a discs springs and the inlet to the reg is a ball bearing set up, over all if it goes tits up bin it and get an aftermarket reg as bsa regs are all bizzz.
    HEV_1636745827919.jpg
     
    Blackmax, scoie and Commander M like this.
  6. Deejayuu

    Deejayuu Donator

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    Have you looked under the O rings to see if there's a joint there.
     
  7. Commander M

    Commander M Engaging Member

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    Thanks for that. Flats coming up...
     
    john79 likes this.
  8. john79

    john79 sywell ft club

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    post some pics mate please , im intrested in the inside's of these regs as ive had 2 gold stars and both of them never gave me any problems :)
     
    Blackmax likes this.
  9. Commander M

    Commander M Engaging Member

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    Mine isn't broken either but I have replaced with something else which at least us serviceable.

    I spent 20 years as an industrial designer and I'm curious as to how this works and why it was made as a disposable/non user serviceable unit. Have you seen the price of these new?
     
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  10. john79

    john79 sywell ft club

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    no mate how much are they?
     
  11. Commander M

    Commander M Engaging Member

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    145 from airgun spares. I think that's a bit rich for what they aré and when you consider what's available from the most popular reg makers
     
    john79 and Blackmax like this.
  12. DM80

    DM80 Engaging Member

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    Bsa and other company's think that most folk are incapable of doing a service on their own airguns which is just a stupid way of thinking and to some degree just arrogance as is their antitamper devices, if your spend your money on a airgun you should be able to service it yourself without having to machine parts of the rifle just to dismantle it, its bollocxx and antitamper is not even a legal requirement.

    Dave.
     
    Peddy, Blackmax and Commander M like this.
  13. ajohn

    ajohn Chewing Things Over

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    No - It's BSA tamper proofing again really. Sealed on this one but usually if some one has put something together it can usually be taken apart.

    How they work. All essentially the same. HW are inclined to use an O ring and ball seal. BSA not different really. This reg isn't an R10 either.

    Others. Plastic disk, Tench I think claim a hard seal. Altaros are a little different. Principle is essentially the same on all. Arrangements vary.

    All spares are excessively priced even O rings. ;) Bit like the motor industry. The mark up there is enormous - we've got you so if you don't want to throw it away fix it.
     
    Commander M likes this.
  14. Commander M

    Commander M Engaging Member

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    Personally I think being able to service your own rifle should be a requirement to ownership. Keep it legal.
     
    sharpsman likes this.
  15. hmangphilly

    hmangphilly Big Poster

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    Did you take em to bits and fiddle about with them John ? I'm guessing not .

    Quickest way to achieve reg problems is start mucking about with them .

    It's pretty clear the factory dont want folks poking about inside . ...I wouldn't either .
     
  16. Blackmax

    Blackmax Rebel!

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    They're also one of the companies that won’t give O ring sizes freely and expect you to buy single units for several quid from one or two dealers which are often the wrong size and/or sub standard.

    Let’s face it the the probably only needs a couple of O rings changing.

    Out of interest what reg did the op go for, a Lane?
     
    ratsnan likes this.
  17. TrickyDicky

    TrickyDicky Life in the slow lane

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    I would also be interested in pics of the internals of this reg, if it is indeed ball and O ring and also used by Weihrauch then I suspect it's esentually no different to the R10 item other than external adjustability, and it would be very interesting to see just why these regs seem to work fine yet R10 regs get such a bad rep.
     
    Blackmax likes this.
  18. Blackmax

    Blackmax Rebel!

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    R10 regs corrode due to the choice of materials.
     
  19. TrickyDicky

    TrickyDicky Life in the slow lane

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    Kind of why I am interested to see just how much more brass there is inside the star reg.;)
     
    Blackmax likes this.
  20. ajohn

    ajohn Chewing Things Over

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    It's not easy to find out actual O rings sizes on any gun I am aware of. Not much of a problem really. A cheap cone taper gauge will measure the bore to 0.1mm and calipers will take care of the section. All that may be needed as well is an idea of how they are sized in case a direct replacement can't be found.

    :) Noticing R10 comments yet again - some regs act up but not all and they sell a lot of them.
     

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