Results 1 to 15 of 21

Thread: Walther CP3 - problem with co2

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. #1
    Join Date
    Apr 2017
    Location
    london
    Posts
    213

    Walther CP3 - problem with co2

    Hi All

    Last night put co2 cylinder in fridge to cool down.

    Topped up with 53g of co2.

    First shot at 10m... full power, next two shots more of a phut and barely made it to the target, so we assumed a seal had gone. Tried again at home, v low on power, so went to bed thinking pistol needs resealing.

    Tried tonight and working fine, retrieved a pellet from target holder and compared with one from my Morini, virtually the same, so power looks about the same.

    I’m new to co2 pistols, so any advice welcome.

  2. #2
    Join Date
    Jun 2012
    Location
    swanley
    Posts
    1,707
    have the seals been changed? and if so were the correct type used, They're a pretty basic design but being CO2 need to have seals of the correct material, CO2 will react with Viton and Nitrile etc causing it to swell, this may then restrict air flow,
    Steyr LP10, Steyr LP5,
    Vintage Collection - Walther LP53, HW77k Venom, BSF S20 Match, Original 35, ASI Target plus lots more

  3. #3
    Join Date
    Jan 2003
    Location
    Ringwood
    Posts
    4,927
    Nige, what is the correct material for the Co2 seals ?
    Remember, it is the strongest character that God gives the most challenges.

  4. #4
    Join Date
    Mar 2010
    Location
    Rossendale and Formby
    Posts
    5,595
    Quote Originally Posted by vbull View Post
    Nige, what is the correct material for the Co2 seals ?
    Polyurethane?
    Rossendale Target Shooting Club. Every Tuesday and Thursday evening 7 - 10pm.

  5. #5
    Join Date
    Jul 2015
    Location
    Hastings
    Posts
    1,498
    Discocom,

    It might be worth sending a PM to Mr. Amatruda (user-name Lawrie Amatruda, here on 'BBS).

    Have fun & a good weekend

    Best regards

    Russ

  6. #6
    Join Date
    Jan 2009
    Location
    christchurch
    Posts
    7,130
    If you overfill it can cause problems.

  7. #7
    Join Date
    Jun 2012
    Location
    swanley
    Posts
    1,707
    Quote Originally Posted by zooma View Post
    Polyurethane?
    yep spot on, some of the smaller ones where I was unable to get Polyurethane I used silicon as well which worked fine, I did also make a new valve seal from nylon, that was 3 years ago and the pistol is still all good, I sold it to a friend and he still uses it on a regular basis. Really easy to strip and with the age of them a seal kit would be well worth doing, Protek may actually have a full kit in stock which will save you searching for the sizes.

    If you have a spare cylinder try that also as it is possible it is the cylinder that has the fault not the pistol, again this will most likely be no more than a strip/clean and seal, there really isn't that much to go very wrong on them.

    Nige
    Steyr LP10, Steyr LP5,
    Vintage Collection - Walther LP53, HW77k Venom, BSF S20 Match, Original 35, ASI Target plus lots more

  8. #8
    Join Date
    Jul 2001
    Location
    Tonbridge Kent
    Posts
    2,860
    Make sure that you have put the cylinder on tightly enough. If you just screw it on till the valve opens and 'grabs' the cylinder,it will not maintain pressure and give you low power shots. Don't over tighten, but it needs to be nipped up hand tight.

    If you need to reseal and can do it yourself try here:http://www.altecweb.com/home.asp?cat=RangeB05

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •