Tuning Air Arms S400 Repair

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wwo2015

wwo2015

Member
Manufacturer
May 8, 2015
166
59
Texas, United States
I have an FT version of one of these actions that I traded a customer for that I use to fit stocks to. It doesn't hold air and knew that when I traded for it but since I have it want to make it functional so I can use it for other than work. Obviously dealers but would like some feedback on those or like a list of trusted individuals who might work on it as well.

Customer tried to put a regulator in it think he messed up some o-rings doing so.

Thanks!

Steve Corcoran
 
Put a pair of balloons or condoms (clean ones of course) over both barrel and filler separately see if it's the filler at the end of the air tube that's leaking. Then east DIY fix.

Otherwise if it's leaking from the barrel...

Pyramid Air has Lifetime Warranty for Air Arms Guns. Probably way cheaper you fix it yourself.

You might want to clean the filler check valve at the end of the tube first b4 worrying about it. Change the o-rings too.

If it's leaking there you can clean it first then you can upgrade it to this which is better anyway. Rather simple DIY. Change the o-rings too.

Depends which style you have.

https://www.bestfittings.co.uk/shop/fill-probes-adaptors/best-fittings-fill-valve-upgrade-for-air-arms-t-bar-type-valves-only/

https://www.bestfittings.co.uk/shop/fill-probes-adaptors/best-fittings-fill-valve-upgrade-for-old-style-air-arms-valves/

Order several items make shipping worthwhile order at least 5 extra 12 pound t-handle to male foster conversions listed first I'll split with you. I need at least 5 plus one of the expensive older style.




 
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Usually if it is leaking out the barrel, it is the exhaust valve, but I am not sure with an aftermarket reg. I have resealed a couple AA guns and it was pretty simple and straight forward. There is a list of oring sizes for the AA guns on the web. I went to the oring store and bought several of each size. The exhaust valve would have to be bought elsewhere or made.
 
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Odoyle it's leaking out the barrel and quite fast actually so think this guy really gutted this thing when he reassembled it. Can take it apart and see what might be damaged but just wanted a few names in case things are horribly wrong.

Thanks!
Click to expand...

Shoot the hell out of it maybe you luck out and only dust or debris preventing it from not sealing properly. Keep refilling then dryfiring constantly a lot see if rate of leak eventually slows down or at least stops at some point at a lower pressure at least that's some hope.

That's what I would do first. Sometimes these things mysteriously fix themselves especially FX brand.


 
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What!? Man that's like trying to do the oval lap backwards. You ever tried to drive against drivers in Talladega? You wanna steer right instead of left you're gonna be driving backwards. And how fast you gonna be able to drive? You're gonna get blistered by them other drivers. That's what a double pellet is, driving backwards, turning right instead of left. Next thing you know you wake up with grits in your helmet.
 
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Well this is entertaining! Thinking I'll just use this thing as a bat to hit rocks in the parking lot........well maybe not.

Thinking the guy who owned this before me really had no clue what he was doing-air leaks out almost as fast as you put it in so think something is really jacked. 

Been given a name on the GTA and think I will just send it over to him and let him crack it open. See if I can hear him laugh all the way from California!


 
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Not sure I'd give up for hitting home runs. Some of the advice is like driving around Talladega with your helmet on backwards. You might do damn good but you go crashing into that wall and a spinning around and you're not sure. So you end up in the infield. And all them hot ladies and them there RVs and trailers. And that Natty Lite. Hell if double pellets are gonna fix it you outta use like three or four pellets. Got to be better. And then that barrels is all jammed up tighter than your guts on a night of buttweiser mixed with Rotel dip. You're sitting on the throne thinking about your kingdom. And you realize, hell, I sold the gun and all I had to do was jam two pellets up in the barrel and it'd be working. So you tell your buddy and he looks at you like you're a dumbass. And round and round you go spinning 'cause three pellets jammed up that barrel was the real fix.
 
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What!? Man that's like trying to do the oval lap backwards. You ever tried to drive against drivers in Talladega? You wanna steer right instead of left you're gonna be driving backwards. And how fast you gonna be able to drive? You're gonna get blistered by them other drivers. That's what a double pellet is, driving backwards, turning right instead of left. Next thing you know you wake up with grits in your helmet.
Click to expand...


SINCE OFF TOPICS IS CLOSED...

https://youtu.be/-kpNwHrTV7M

https://youtu.be/5M0vNjuiB3w


 
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Lookie here I 'aint saying he's not right all I'm saying is you're looking at the problem and you got a tin a pellets. And two don't work. It 'aint hard you put two of them other pellets up your nose, lub 'em up, and jam that barrel full of four pellets. Then you hand pump the heck out of it. If you can't get 'em to pop out that barrel then six outta work!!!

It's like eating at Applebees. You got you a party of six and dang if all they got is first available a booth that seats four. You just squeeze in and you get you that sampler. You sample the heck out of it knowing it only feeds four. So you get you two samplers and come to find out it feeds eight. What are you going to do now? You put you two seats at the end of the table in the middle of the serving isle so you can make it even?

Nope you keep them samplers and you ask for a doggie bag. 'Cept you don't feed that stuff to the dogs. No you save it, in the fridge, until you throw it out. Just like you don't let another man wear your helmet during a race.
 
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