leaking co2 seal on pistol

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hitblong

Post subject: leaking co2 seal on pistol

Posted: Wed Aug 11, 2021 10:38 am

Joined: Sat Mar 21, 2020 12:28 pm
Posts: 15

if your co2 pistol fully leaks when locking up can you still use the same seal and just add a drop of pelgun oil on it and still shot the co2 pistol.

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TCooper

Post subject: Re: leaking co2 seal on pistol

Posted: Wed Aug 11, 2021 10:59 am

Site Moderator

Joined: Sat Sep 03, 2005 9:25 am
Posts: 4597
Location: Ontario, Canada

What pistol are you having problems with? Is it leaking down the barrel or at the powerlet neck? Sometimes proper lube will help a seal swell and function for a while longer. Other times the seal is dried out, cracked or damaged and can't be "fixed" with lube.

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hitblong

Post subject: Re: leaking co2 seal on pistol

Posted: Wed Aug 11, 2021 11:29 am

Joined: Sat Mar 21, 2020 12:28 pm
Posts: 15

hi it not dry or crack it still the same shape using a crosman co2 mag 357 177.cal and a Acro 1 co2 pistol 22cal./it leaks when you are put it in the hole of the handle pistol when you screw it up it start to leak out before it done /

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TCooper

Post subject: Re: leaking co2 seal on pistol

Posted: Wed Aug 11, 2021 4:08 pm

Site Moderator

Joined: Sat Sep 03, 2005 9:25 am
Posts: 4597
Location: Ontario, Canada

You could try removing the seal from the Cr357, clean it, wipe with PellgunOil and re-install. Also clean the screen and piercer pin and under it. If it still leaks then maybe the seal hardened up or is slightly deformed. Try a new one if it still leaks. I'm not familiar with the Acro-1.

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killercrow

Post subject: Re: leaking co2 seal on pistol

Posted: Thu Aug 12, 2021 11:01 am

Joined: Thu Oct 13, 2005 4:20 pm
Posts: 2374
Location: Spruce Grove AB

The acro-1 uses a co2 cartridge seal that is basically a little ring inserted around the piercing pin. When I was a kid I fixed mine using a short piece of slingshot rubber tubing. It worked ok. But now that I know better, I would try to pick out the old seal and use a small thick oring. It should work. Not sure the size off the top of my head, maybe 5/16" od and as heavy as you can find.
Just an idea.

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Mirlin Porter

Post subject: Re: leaking co2 seal on pistol

Posted: Mon Sep 13, 2021 8:12 pm

Joined: Mon Sep 13, 2021 7:58 pm
Posts: 1

I have a Crosman .177 Model 38c. It has not been used for many years. I suspect the seal at neck of cylinder has dried out as CO 2 cylinder drains out as soon as you try to install it. Can oil lubricant solve this or must seal be replaced? Is there anyone in Vancouver that can do this?

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