ATI NOVA LIBERTY LEAKY POPPET and VALVE connection

[Antwuan Maxx]

I have been waiting for ATI to get it together but it doesn't look like they're even trying   I need one in mine too, my Freedom is still working perfect.  I'll probably try getting hold of duy also, I've got way too many irons in the fire right now.

I'm working with a manufacturing company to start producing bulk parts for multiple guns. 

Kral
The new Benjamin guns
ATI liberty and variants
Gauntlet

These are the primary at the moment.  If anyone would be willing to ship their liberty rifle to me for all the  measurements I need I'll get them new updated poppets and any other updated parts we come up with.

I have a wood stock Liberty with a slow leak that's been sitting in my gun cabinet for a few months.   I'd be happy to ship it to you in exchange for the upgrades.

That would be perfect. I'm probably looking at a month to get the measurements, make and test the prototypes then get them in production.  I want to expand the business with drop in customer install parts so there's not a large shipping charge and wait time on having to send a gun for one off repairs and to make sure each part is the same as the next.

Sounds good.  Just PM your info and I'll have it out to you sometime this week. 

Not really a big deal if it takes longer than a month, since I have another Liberty (which may or may not be developing a slow leak as well) to keep me entertained.

This is all rather ironic since I actually PM'd you and Duy both earlier this morning about replacement poppets.  For some reason, the PM I sent to you was never delivered. 

[TroyHammer]

Probably 3 series for each gun.

Primary Repair Parts and upgrades

Power tune kits

12fpe tune kits

[MikeLord]

I just bought this rifle and it leaks right out of the box. I tightened the degas screw but still leaks even before I use the rifle. I sent it back to American Tactical. I will see what they will say.

[Antwuan Maxx]

Well, I just confirmed the Liberty I purchased in August does, indeed, have a slow leak.  It leaks about 100 PSI per day.  The leak seems to have developed within the past two weeks.  Incidentally, that's around the time I made the plunge from hand pumping to a SCBA tank and began shooting it more than usual.  I'll probably hold on to it until the squirrel season ends in a few weeks, unless the leak gets worse.  Not sure if I'll buy it back as a no warranty/parts gun since it's an erratic shooter and I'm constantly having to rezero.

It's pretty shocking seeing how such a high percentage of these guns develop leaks and that ATI is seemingly content to replace them with brand new guns, which more than likely will suffer from the same issues.   

I mailed my no warranty/parts guns to Troy Hammer this weekend, he should have it by the end of the week.  Can't wait to see what he comes up with. 

[tracker1955]

My poppet leak that started out slow had gotten to the point where I needed to pull it and replace the sealing material with Delrin, which I started tackling last night after work. The first snag was getting the clip loose so I could push the can off the stem to remove the old seal material. Once off, the Dremel made short work of the old seal. I used a piece of aluminum bar stock to make a surface for dressing the poppet's surface with fine sandpaper on its sealing surface. After drilling a pilot hole in the bar just bigger than the poppets shaft, I then countersank the hole so the tapered area around the shaft wouldn't interfere with the surface making full contact with the sandpaper. I put the bar in my vise so it would clear the front of my bench as I needed room past the bench to chuck the poppet's shaft into my electric drill in order to pull tension on it and spin it against the sandpaper. It didn't take long before having a nice smooth surface for the valve to seal against. Forgot to say that I used my vice and a small 1/4" drive socket to push the Delrin onto the shaft to seat it. The second snag I hit was a leak at the o-ring under the plenum when gassing the rifle back up for testing. I found out that the seal used for the connection on a scuba K-valve is the exact size needed under the plenum and I had an old Urethane spare from my old scuba tank used before getting my scba. I have the air tube gassed up to 3000 psi currently and am watching it to see if the rifle will hold air. If I should still have a minor leak I'm hoping that repeated firing of the rifle will help it seat. If all checks out it will go across the chrony for testing before everything goes back into the stock. Because the Delrin protrudes out the can a bit more than the old seal, I may have to adjust the shims on the hammer spring to match my old velocity and not waste air. I should also add that while the can was off the shaft I shortened it slightly with the Dremel so I had more of the Delrin exposed.

[tracker1955]

Good news is the rifle held air for 24 hours, bad news is the weather has been awful with rain all day so no chrony work done. Put everything back together this afternoon and sighted it in again at 30 yards out the rear window, will have to wait for better weather to verify fps and eficiency.

[Raptor72]

Duy (darkcharisma) may or may not be helpful. Had made replacements in the past.

[Wayne52]

Pyramid air had some for a while but they were the same as the original and don't last.

[SILENT SQUIRREL]

Duy (darkcharisma) may or may not be helpful. Had made replacements in the past.

Speaking of Duy
I went searching for his DC Tunes website today and came up empty
What is the address of his website, please?

Thanks
Ed

[Raptor72]

DCtunes-but looks like he’s not taking orders because of full time job.

[Madd Hatter]

https://dctunes.square.site/s/shop

[SILENT SQUIRREL]

https://dctunes.square.site/s/shop

Thank you