GTA

All Springer/NP/PCP Air Gun Discussion General => PCP/CO2/HPA Air Gun Gates "The Darkside" => Topic started by: ninsei on March 14, 2022, 09:50:15 AM

Title: The tapered side of the AT44 valve seat faces the threaded side of the valve?
Post by: ninsei on March 14, 2022, 09:50:15 AM
Hi. Reassembling an AT44 valve and I keep getting leaks. I've tried new tappets (the little white plastic ring with an oring around it) but still leaks. That valve tappet is tapered (countersunk) around its hole on one side. That tapered side faces the wider/threaded part of the valve right? I would think it does cause the section of the valve stem that rests in the tappet is tapered. Just checking.
Title: Re: The tapered side of the AT44 valve seat faces the threaded side of the valve?
Post by: lizzie on March 14, 2022, 12:52:18 PM
Moving to the Darkside (PCP)
Title: Re: The tapered side of the AT44 valve seat faces the threaded side of the valve?
Post by: Texpatriate on March 14, 2022, 04:07:55 PM
I'm not too sure about that. I can't remember exactly but it seems like the last time I had one apart something was kinda counterintuitive. It wouldn't hurt to flip it over and see.  I've been known to chuck the end of the valve stem in a Dremel and spin it against the seat as well.
Good luck.
Title: Re: The tapered side of the AT44 valve seat faces the threaded side of the valve?
Post by: Corny on March 14, 2022, 09:47:03 PM
If it’s the oem delrin seal I don’t think it’s makes much difference. It will create another taper.

Are u sure its leaking at that point?
Title: Re: The tapered side of the AT44 valve seat faces the threaded side of the valve?
Post by: ninsei on March 14, 2022, 10:11:15 PM
replaced the tappet with a new one and that seems to have fixed it (though I thought I tried that before), will monitor for leaks. Thanks for the responses.
Title: Re: The tapered side of the AT44 valve seat faces the threaded side of the valve?
Post by: kbstingwing on March 15, 2022, 01:37:51 AM
you need to lube the O-ring on the Tappet with Silicone grease or silicone oil and make sure you press it all the way in it's seat, the Poppet valve goes in with the O-ring end facing the gun.