.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.
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You have a leaking o ring in one of three places.. that pin hole in the tube is to keep neutral presure between the reg and valve and in your case indicate a leak in one of those parts. It will be an o ring on the rear of the valve body or the reg body or on the reg piston/piston bore. You will need to strip it and apply a little silicone grease to the o rings if they are dry or replace it if there is rubber damage.
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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?