It still leaked slightly from the threaded portion, but after tightening the threaded 'valve retainer' another 1/2 turn, it stopped! I hadn't tightened it enough. When I put it back together, I attached the lower portion of the gun and installed a C02 Cartridge. It looked dry, kinda cracked, and hard, so I lubed it up with silicon grease, and then wrapped some Teflon tape around the threads in front of that seal, making sure not to let any tape hang over and interfere with the internal workings of the valve. Most of the seals inside of the gun are made from hard plastics like nylon that really wouldn't wear out easily or harden and crack, testament to the to 'no o-ring' design, so I wasn't quite sure why it leaked.Īnyway, I lubed the 'seals' up good with some lightweight silicon based grease, and then as I was re-assembling, my eye caught that '0-ring' like seal around the threaded portion of the valve that you twist into the body of the gun (with pliers) to hold all the valve parts inside. I disassembled it as far as I could, then found your instructions and used then to disassemble the valve. It would de-pressurize in about 30 seconds.

It has been stored away for at least 20-25 years, and when I got it, the gun leaked like crazy as soon as I punctured a fresh CO2 cartridge. Hey, I have a Daisy CO2 200 Pistol that was my dads when he was a kid.Īfter his father (my grandfather) recently passed away, we found the pistol in some of his stuff.

Daisy co2 200 repair