HELP! Umarex Beretta PX4 Storm Leaking

[Zippo]

My PX4 is slowly leaking gas, I takes just over an hour to empty I'd say

I've tried to heat up the seals with a hair-dryer but I'm not sure its worked - is there any other way to fix this, or any advice?

If the seals are totally knackered can it be fixed any way?

[ikarma70]

have you lubed the seal and inspected the co2 nose to see if its not on the pee?

[Zippo]

I use pellgun oil on every 2nd CO2 but i don't know what the nose is...

[Jim McArthur]

You just have to load and then shoot fast!

But seriously: it does sound like defective seals.

Jim

[ikarma70]

I use pellgun oil on every 2nd CO2 but i don't know what the nose is...

the thin end of the capsule

[Zippo]

What can I tell from inspecting the end of the capsule?

[magicniner]

If you load a CO2 with an empty mag in place do you hear gas escaping down the barrel?
If so it's likely to be the front valve seal, it could be the the main seal too but that's less likely,
Regards,
Nick

[Zippo]

If you load a CO2 with an empty mag in place do you hear gas escaping down the barrel?
If so it's likely to be the front valve seal, it could be the the main seal too but that's less likely,
Regards,
Nick

Thanks for the help, I will check when I get next visit the flat where I keep my guns (I have a term time address and live elsewhere in summer) and report back.

[Zippo]

I checked and it's still leaking. I listened as best I could and the only thing I thought I could hear was a slight 'gas escaping' sound coming from the rear where the CO2 canister itself goes. To hear it I had to open the back up when the gas was installed and hold it up to my ear. The sound was there when the gas was fresh but it stopped after a few shots.

The gun was still empty after a few hours though.

Any ideas?

[magicniner]

Put a co2 capsule in and take up the slack with the knurled wheel under the capsule as usual.
But then only turn the piercing system about 15 degrees, dimpling but not piercing the top, then back off and take up the slack with the knurled wheel again before piercing fully.
If this cures the leak it's the capsule seal that needs replacing, or you can just keep doing it the way described above
ATB,
Nick