Keeping Co2 airguns working.

[peddy]

If the capsule is sealed by the valve seal contacting the capsule then dont leave it with gas, always remove the capsule when storing. If it seals via the cylinder tube, leave with gas in. As mentioned always put a blob of pelgun oil on the end of the capsule. If you want me to go into more detail why let me know.

[gingernut]

I suggest they are used regularly.
Leave them filled or empty over time and you will have problems.

[laverdabru]

Really don't know the answer. But would welcome any thorts...
I've got 3 CO2 pistols. Only used in Summer. Always leave the capsules in, stored in a dry room. Never used Pellgun oil, or ATF. As the latter is used in the harsh environment of auto gearboxes, never fancied using in my CO2 guns with (presumably) rubber/composite seals.
Like I said, don't know the answer - but would like to know the best way to keep them running for as long as my old Wobbleys!

ATB

Bru

[peddy]

Really don't know the answer. But would welcome any thorts...
I've got 3 CO2 pistols. Only used in Summer. Always leave the capsules in, stored in a dry room. Never used Pellgun oil, or ATF. As the latter is used in the harsh environment of auto gearboxes, never fancied using in my CO2 guns with (presumably) rubber/composite seals.
Like I said, don't know the answer - but would like to know the best way to keep them running for as long as my old Wobbleys!

ATB

Bru

If you read my post Bru.... with regards to pistols NEVER leave them with capsules stored. The co2 will damage the valve seal, in addition capsules have different shaped ends so leaving them with one maker will leave an indent in the valve seal so when you use a different brand the gun will piss gas out when you try to seal. Always store with a smear of pelgun oil on the seal to preserve the valve seal. Rifles are different as they seal via a cylinder end cap so leaving it gassed will keep pressure on the exhaust valve preventing any dirt contacting the seal.

[wobbly bob]

If you read my post Bru.... with regards to pistols NEVER leave them with capsules stored. The co2 will damage the valve seal, in addition capsules have different shaped ends so leaving them with one maker will leave an indent in the valve seal so when you use a different brand the gun will piss gas out when you try to seal. Always store with a smear of pelgun oil on the seal to preserve the valve seal. Rifles are different as they seal via a cylinder end cap so leaving it gassed will keep pressure on the exhaust valve preventing any dirt contacting the seal.

I'm sorry, but how could CO2 damage a valve seal? Carbon dioxide is an inert gas is it not?

[Lawrie Amatruda]

I'm sorry, but how could CO2 damage a valve seal? Carbon dioxide is an inert gas is it not?

With all due respect, if you research how most commonly used O rings react to Co2 you will be surprised at what damage it does to them, I can speak from experience of many years resealing Co2 air guns.

Regards, Lawrie

[wobbly bob]

With all due respect, if you research how most commonly used O rings react to Co2 you will be surprised at what damage it does to them, I can speak from experience of many years resealing Co2 air guns.

Regards, Lawrie

I have had seals become porous and absorb CO2 in internal blister-like deformations from which it would eventually be released. But I was taught at school that carbon dioxide was an inert gas, so I assumed that was due to a deterioration of the seal material that would have happened with any compressed gas

Having gone away and done a little research, I stand humbly corrected

Thank you, Master Lawrie

[laverdabru]

If you read my post Bru.... with regards to pistols NEVER leave them with capsules stored. The co2 will damage the valve seal, in addition capsules have different shaped ends so leaving them with one maker will leave an indent in the valve seal so when you use a different brand the gun will piss gas out when you try to seal. Always store with a smear of pelgun oil on the seal to preserve the valve seal. Rifles are different as they seal via a cylinder end cap so leaving it gassed will keep pressure on the exhaust valve preventing any dirt contacting the seal.

Thanks for that - I will change my ways! A good point re brands having different indents. Hadn't thought of that.

All the best

Bru