Q:

.25 Cricket: sudden onset air leak

I’ve been shooting the .25 Cricket for a couple months now. I went to fill it today. As as soon as pressure got above 200 Bar the tiny hole on the underside of the air tube started bleeding air. It bleeds off at a pretty fast rate till about 180 Bar, then stops. This air bleeds whether probe is connected or not, and is definitely coming from the tiny pin hole on the underside of the air reservoir at the end nearest the gauge. Shoots normally, but won’t hold air above 180 or so. This is a brand new issue, no previous problems of any kind.

Kalibrgun

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Harbor Freight sells any o ring you might need.

Check the size and get one (or twentyone) in Duro 90. Denser rubber thus lasts far longer. When (if ever) my Cricket decides to arrive i´ll bunk up with a load of needed o-rings for it. It´s easy to obtain those metric sizes here,in all imaginable durometers, but it can be a mission on that side of the pond.

Well, I finally got around to opening up the Cricket to sort the air leak. Machine Gun, you were correct. Front O-ring had failed (the one nearest the pressure gauge). Air had dissected almost 360 degrees around the greater circumference allowing leakage at pressures above 150 BAR or so . The fix was super easy, there being 2 extra o-rings included with the gun. That type of failure does lead me to question the choice of material for this particular application.

Has there been an upgraded O-ring substituted in recent months?? (or, if not, is there one available through other channels?)

Thanks to those of you that posted links to disassembly, etc. They really should include that in English in the manual.

Same thing happened to me. I changed out the O ring right at the fill port. Bleed the gun, unscrew the air fill piece and that O ring was the culprit. Good luck.

So, further info on the air leak. Pressure only drops to 150 BAR and stays there (10 days now!) . Rapid air leak down to 180 bar, then slow to 150, then stays put. Makes me think the leak is somehow tied to reg pressure. If that is the case, which O-ring is the one I’m needing to replace?? (Haven’t begun disassembly yet–too much other stuff going on)

Or should I just sent it back to TAG and let them deal with it??

I already knew that screw trick. I´m under the impression Cricket probe o-rings are located in the load port part rather than on the probe itself as on the EdGun. This makes me think they´re easily harmed/dislocated in the cleaning process. True or false ? ❓ ❓

You can clean it same way as edgun. I think if you can remove regulator is not necessary remove manometer gauge as is shown on czech site. Good idea is used by link from yellow with screw 💡

A good link Octavius! Is the air removal needed before the breech removal ?? I hope not … Haven´t got my bloody Bug yet so i haven´t had the possibility to take a closer look on anything.
I also wonder if the barrel cleaning is as complicated affair it seems, i mean whether the breech needs to be removed every time .. My EdGun is easily cleaned with a modified Bore Snake or with a Patchworm so i hope the Cricket will be somewhat the same.

Nice link yellow yak 😉 😉

quote John in PA:

Is there a quick/safe way to degas, or just shoot it till pressure is zero??

instruction provided by Ernest Rowe

http://www.network54.com/Forum/79537/message/1361101947/Cricket+.177+to+.25++Regulator+Adjustment+with+photos

Is there a quick/safe way to degas, or just shoot it till pressure is zero??

Never mind, I think I just saw it on the video. Screw under/near the trigger mechanism??

quote John in PA:

Further observation: overnight further pressure drop from 180 bar to around 150 bar. Apparently there is a rapid loss above 200 bar, but then continuing ongoing loss much slower once it hits 180. Sound more like it’s affected by reg pressure??

Also, where are posted disassembly instructions. Several replacement o rings came with the gun, but no disassembly procedure?

http://www.pimpmyairgun.com/viewtopic.php?f=215&t=589

quote John in PA:

Further observation: overnight further pressure drop from 180 bar to around 150 bar. Apparently there is a rapid loss above 200 bar, but then continuing ongoing loss much slower once it hits 180. Sound more like it’s affected by reg pressure??

Also, where are posted disassembly instructions. Several replacement o rings came with the gun, but no disassembly procedure?

Make sure you degas.

Do a Cricket search on YouTube for Cricket airguns.

There are a couple there.

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