View Full Version : Co2 tank

03-28-2007, 03:58 PM
My friend has just bought a Co2 tank last week. well decide to shoot out guns off today at some trees b/c we are bored. well long story short when we went to screw the tank in it started shooting air out the side from a little hole. we took the tank out not know what it was. well it looks like the o-ring broke. here are some pictures. any now what it could be making it do this?



03-28-2007, 04:02 PM
replace the o ring and see if you're still gettin the leak. Either way you're gonna have some CO2 escape when removin the tank.

03-28-2007, 04:08 PM
oh i know that some air is going to leak. but this was a huge amount of air. would the O-ring breaking cause such a large leak?

03-28-2007, 04:10 PM
yea, I've had the same problem many times. After I replaced my o ring the problem was solved

03-28-2007, 04:11 PM
alright thanks. we will give a whrill this weekend.

03-28-2007, 04:18 PM
........ any now what it could be making it do this?....

You're not removing the tank right. Unscrew the tank 1/2 to 1 full turn, shoot out the excess pressure till it doesn't recock. You can now unscrew the tank with no pressure leaks. Use a lube like Dow33 on the tank threads and o-ring and use it on the ASA threads as well -

03-28-2007, 04:28 PM
well i mean we were screwing it in the gun. thats the werid thing

03-28-2007, 04:51 PM
If you were screwing it in then the threads in the ASA are prolly sharp & cutting the ring. Rub your finger on them and see if it feels sharp. Lightly sand them with sandpaper if they are. Clean all the grit completely before screwing the tank on again. Both my Crossy reg threads were too sharp and it made them tough to screw on as well as ripping up the ASA. Sanding them made a big difference. ASA's can have the same condition -