I was shooting, and in the middle of a magazine it just stopped working. Essentially, when the hammer dropped no air was released (as if there was no air in the cylinder). There was just under 3000psi in the cylinder though. There was no air leaking, and I was guessing that a valve was stuck closed. I tried topping off the cylinder to see if that would help, but no luck. I ended up taking it apart to see what was up, and found the small brass cone part of the poppet had broken in two. Thanks to the past here with the parts diagram (Thank you!), I know what to call at least some of these parts.
When I opened it up, the Valve Core Pin was free to slide back and forth through the Exhaust Valve Core, while the little cone bit in the picture above stayed sealed in place against the Exhaust Valve Core. This is why it acted like there was no air in the cylinder - when the hammer hit the Valve Core Pin, it slide though the Exhaust Valve Core, and even though it pushed back the Exhaust Valve Core Sleeve (white polymer part of the poppet) the brass cone bit stayed in place (sealing the valve). I assumed when poppets go bad, the polymer bit would be what breaks, not the brass bit.
The Notos is less than 3 month old, so I contacted Umarex, and we will see what they say. Hopefully they can just send me the tiny part (not ask for the whole airgun to be shipped back).
Before anyone asks, I haven't done any mods, the Notos is all stock. I haven't fired it without pressure in the cylinder (I hadn't ever had it empty since I first got is and filled it). The hammer spring is stock, and I have the hammer set pretty light (would rather have more shots as opposed to more FPS). I admittedly have shot it a lot since I like to sit down in the evenings and shoot 100 pellets of so at a time. I'm not sure how many tins of pellets I have gone through shooting cans in my back yard, but its a fair number. Still surprised how it broke though.
Hopefully I can get the parts quickly. I've really enjoyed the Notos.
When I opened it up, the Valve Core Pin was free to slide back and forth through the Exhaust Valve Core, while the little cone bit in the picture above stayed sealed in place against the Exhaust Valve Core. This is why it acted like there was no air in the cylinder - when the hammer hit the Valve Core Pin, it slide though the Exhaust Valve Core, and even though it pushed back the Exhaust Valve Core Sleeve (white polymer part of the poppet) the brass cone bit stayed in place (sealing the valve). I assumed when poppets go bad, the polymer bit would be what breaks, not the brass bit.
The Notos is less than 3 month old, so I contacted Umarex, and we will see what they say. Hopefully they can just send me the tiny part (not ask for the whole airgun to be shipped back).
Before anyone asks, I haven't done any mods, the Notos is all stock. I haven't fired it without pressure in the cylinder (I hadn't ever had it empty since I first got is and filled it). The hammer spring is stock, and I have the hammer set pretty light (would rather have more shots as opposed to more FPS). I admittedly have shot it a lot since I like to sit down in the evenings and shoot 100 pellets of so at a time. I'm not sure how many tins of pellets I have gone through shooting cans in my back yard, but its a fair number. Still surprised how it broke though.
Hopefully I can get the parts quickly. I've really enjoyed the Notos.
