Good advice from eyebull. If you can hear air escaping from breach seal end, its probably the valve seals. The piston leak tends to be a gradual one, and tends not to be heard. The repairs are easy to do and I replaced all my seals (3 in all) and can be bought from B&Q. You need "Plumb sure" mixed o'rings 1/16" pack for valve, and Plumb sure 3/32" pack for piston. This will help. my.tbaytel.net/~coopers@tbaytel.net/HW40Review/ My repairs were done on Beeman P17s but its the same gun essentialy.
Last edited by peteswright; 13-11-2012 at 08:28 AM.
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