I've been leaving a couple of pumps in mine since I learned of it as a way to keep stuff from creeping in as it sits.
Quote from: Goose on October 13, 2021, 08:19:52 PMI've been leaving a couple of pumps in mine since I learned of it as a way to keep stuff from creeping in as it sits. OK, this is what I thought. But for a normal working gun, the air valve internal spring pushes both the intake and and exhaust valves to close position, even with the bolt uncocked, and so even without pressurized air inside, the closed valves should prevent stuff from creeping in. Am I missing something here?
Quote from: Lyem on October 13, 2021, 10:36:01 PMQuote from: Goose on October 13, 2021, 08:19:52 PMI've been leaving a couple of pumps in mine since I learned of it as a way to keep stuff from creeping in as it sits. OK, this is what I thought. But for a normal working gun, the air valve internal spring pushes both the intake and and exhaust valves to close position, even with the bolt uncocked, and so even without pressurized air inside, the closed valves should prevent stuff from creeping in. Am I missing something here?Yes. You're missing out on heeding some solid advice. I learned about this from Tim at Mac-1. I haven't had to reseal any of my Sheridans since I began storing them that way. They're normal, working guns.This link explains things pefectly. - Carry on,J~
Quote from: Lyem on October 13, 2021, 10:36:01 PMOK, this is what I thought. But for a normal working gun, the air valve internal spring pushes both the intake and and exhaust valves to close position, even with the bolt uncocked, and so even without pressurized air inside, the closed valves should prevent stuff from creeping in. Am I missing something here?Yes. You're missing out on heeding some solid advice. I learned about this from Tim at Mac-1. I haven't had to reseal any of my Sheridans since I began storing them that way. They're normal, working guns.This link explains things pefectly. -
OK, this is what I thought. But for a normal working gun, the air valve internal spring pushes both the intake and and exhaust valves to close position, even with the bolt uncocked, and so even without pressurized air inside, the closed valves should prevent stuff from creeping in. Am I missing something here?
Sorry Goose, but I am not here to argue with pump-before-storage idea; I just try to understand the logic of it. The way I see this, particularly for the Dan, that the valves are closed under the spring force and so they don't need pressurized air to keep them close. I do listen to people suggestions, but I also would like to understand how it works.
All of my pumpers are also put away with two pumps in them. Never had a problem with doing that. Even do that with the Crosman 140, which by the way leaves it "cocked".
Keeping the 140 cocked is not only an unsafe practice, but, it also has a tendency to mess up the quad seal. Just sayin'.
There are different views on this A very experienced pump and CO2 airgun collector from the UK, who is seen as the best resealer or valve stems in the UK and Europe, always tells me to store my CO2 and pump guns empty. With CO2 guns, I have seen that valve stem seals suffer under constant pressure. It makes sense; why keep the polyurethane seal material under stress, when the gun is in storage?