air Venturi must be able to get parts as I ordered a new poppet for my Liberty from PA and it came today. It's actually for the Seneca Aspen but exactly the same. I realize that this poppet still has the softer material in it than delrin or peek but if it lasts me a year like my old one did that will be fine for the price. Installed it this afternoon and am pressure testing it now. I need to order a custom one from Duy but already had this one on order and didn't want to cancel the order. I just hope it holds air ok.
The part is not listed, I sent them an email and asked if they had the poppet and what it would cost, they had to check with their repair dept. got an email back that they had the part, it was just over $19 with shipping. Checked the rifle this morning and it's still holding air but have not fired it yet. The one I repaired with Delrin I got from a GTA member held air initially, but then leaked after firing. Try as I might I was never able to fully stop the leak but could shoot it normally as long as I was actively shooting.Keep in mind that I asked for the poppet for an Aspen, not a Liberty. It came with a new valve spring and two orings that were for the Aspen.
Delrin will work but that stuff is soft and needs to be ultra fine polished. you should also check the sealing surface of the valve too. make sure it doesnt have nicks. most of them have some kind of nick and requires polishing too. usually firing will make the poppet seal after a while due the indention made from firing action. just like burnishing it. i have found the best way to remedy the leaking poppets to be Polishing peek or delrin. and if you have access to a lathe. counter sink the valve and use peek...best sealing and long lasting solution.
There is also the bags of rubber mulch that work great and self heal, so to speak.
Quote from: Back_Roads on April 28, 2020, 08:44:44 PM There is also the bags of rubber mulch that work great and self heal, so to speak. Yeah, the rubber mulch in a 5 gallon bucket works well! Stops 60 fpe .25 pellets no problem.