I have a Taipan Vet II tactical 550mm .22 that I bought from a non-US store. I shot around 100+ pellets through it and everything was fine. Then, on a shot I guess I inadvertently hit the cocking arm with my hand and it was 1/2 way open when I fired the next shot. The air blew out the back at the pellet probe. I was able to clear the pellet with the next shot, but then put the gun down for a while. 15 minutes later I load a round and pull the trigger and just the trigger click. The tank pressure guage showed 0 bar. I filled it up to 250 bar. It took many times longer for it to fill... I just thought since it was down to zero that was why. Then I cleared the pellet - it shot out fine or should I say normal and I thought I was good. 10-15 minutes later no air again. So I filled it up to about 180 bar and tried to determine where the air was leaking. Nothing out the barrel and nothing back by the pellet probe. I could hear no air escaping. I haven't put fluid on the possible spots yet but wanted to ask if anyone has had this problem in the past and what did they do to correct it? I tried to send it back to the dealer, but our friendly USPS would not ship it and it got returned.
Taipan Taipan Vet II Tactical Problem
- Thread starter Pfddi
- Start date
Check the gauge (manometer) it might be loose.
And check that the bottle is dully tighten.
Check if the filling port is leaking.
Those three are really easy to fix.
And check that the bottle is dully tighten.
Check if the filling port is leaking.
Those three are really easy to fix.
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@Emu - the guage was not tight. I took the gun apart and all the o-rings were in place and looked good (they should be new!). I tightened up the guage and filled it up to 250 bar last evening. This morning it's down to 50 bar so I've managed to "slow" the leak! Bottle is tight and was tight when I took it off. Not sure how to try a bubble test on the fill port though...
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You can check the atmosphere vent hole with a little soapy water and put a balloon over the muzzle of the barrel after removing the shroud, taped tight. Make sure the probe is in the breech. If air is in fact making it past the valve you'll see air in the balloon. It can also leak thought the front and rear tube o-rings.
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Sounds like you fired the gun with no air, which likely damaged the valve. I don’t see how that would mess up the gauge or the reg. Pull off the bottom tube and inspect the popper and stem. Hopefully the hammer hasn’t deformed the brass valve body 
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You wrote “15 minutes later I load a round and pull the trigger and just the trigger click. The tank pressure guage showed 0 bar.”
I realize that the problem had already occurred, but after the above, I would check the valve.
I realize that the problem had already occurred, but after the above, I would check the valve.
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