So I just bought my first pcp a gamo urban .22. It came filled to about 3000 psi. I shot maybe 40 shots out of it and the pressure gauge wouldn’t drop until maybe a day later and was at about 1800 when I went to refill the first time with a hand pump. I pumped maybe 80 times until the pump pressure gauge read 3000. The gun pressure gauge still read 1800. There is no air leak. I went out and shot about 20 shots and now pressure is at 2000. Is there a problem with the gauge on the gun? Shouldn’t it be going up immediately as you’re pumping?
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Gamo urban pressure gauge
- Thread starter Brookie10
- Start date
I would say its not working, could be a piece of debris or something between the gun and gauge.If it was mine i would degas the gun unscrew the gauge and clean it and try again before returning it if that didn't work. I do own a couple PCPs but never owned a Gamo so just a suggestion.
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My story sounds a lot like yours. I purchased an Urban a few months back as my first PCP. I absolutely loved it (and still do), but it came with a defective pressure gauge. So I contacted Gamo and they quickly mailed me a replacement gauge free of charge.
Once I got the replacement gauge, I shot the gun until there was a noticeable drop in pressure. Then I dry fired (which apparently is safe to do with a PCP) to completely empty the air cylinder. Afterwards I removed the original gauge and replaced it with the new manometer from Gamo. After hand pumping the gun back up to pressure and firing a few rounds, I was disappointed to discover the new gauge also appeared to be defective. So I figured what the hell, the gun shoots extremely well..I'll just go by the gauge on my hand pump and refill it whenever my zero begins to drift.
Well, I ended reading a post on another forum where someone mentioned his manometer was torqued too tight and after he backed it out a little, it resulted in a functioning gauge. Well sure enough, just yesterday in fact, I decided to give this a go. Shot the gun to empty, removed the gauge, tightened it just finger tight and snugged it up just a little with a wrench. Gauge has been working properly ever since.
I'm wondering if this was the case with the original gauge. Apparently, they don't have to be as tightly torqued as you would think. I filled my gun to 2900 PSI last night and it was still at the same pressure this morning.
Once I got the replacement gauge, I shot the gun until there was a noticeable drop in pressure. Then I dry fired (which apparently is safe to do with a PCP) to completely empty the air cylinder. Afterwards I removed the original gauge and replaced it with the new manometer from Gamo. After hand pumping the gun back up to pressure and firing a few rounds, I was disappointed to discover the new gauge also appeared to be defective. So I figured what the hell, the gun shoots extremely well..I'll just go by the gauge on my hand pump and refill it whenever my zero begins to drift.
Well, I ended reading a post on another forum where someone mentioned his manometer was torqued too tight and after he backed it out a little, it resulted in a functioning gauge. Well sure enough, just yesterday in fact, I decided to give this a go. Shot the gun to empty, removed the gauge, tightened it just finger tight and snugged it up just a little with a wrench. Gauge has been working properly ever since.
I'm wondering if this was the case with the original gauge. Apparently, they don't have to be as tightly torqued as you would think. I filled my gun to 2900 PSI last night and it was still at the same pressure this morning.
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Thanks for the replies. I’ll try that. I just checked again and now it reads 2200. Think I’ll empty it and back it off a bit so it’s not so tight.
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I would do all of the above and replace the Oring. If it has been overtightened it will probably be damaged. You shouldn't need to dry fire to empty if you are going to remove the gauge, just slowly undo it until it stops hissing and then, remove it.
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