AEA HP SS .25 decided to go Full Auto!

Still will work. You move your gauge to the second hole in the receiver after removing the inner screw.

PhotoPictureResizer_1704312989671_copy_2043x1225.jpg
 
  • Like
Reactions: Perle and nobody1
Do they even make one?
Up to .30

If you have an AEA and you live in Europe you are screwed.
The price for a single valve pin is 57 euros + 20 euros shipping!

$83 for a valve pin while at the same time they are $15 at the PelletShop...
 
The valve finally arrived and the airgun is in working order again, apart from the usual magazine jams...
So the issue was only the broken valve, not the trigger or a stuck pellet in the trigger block.
Basically the valve of this airgun is trash... I have also ordered the reinforced version from ebay
just to be on the safe side. This airgun would have been top if it had a proper valve pin and the
metal magazine from the JTS Airacuda max.

The airgun was left in the closet for 5 months with 220 bar pressure and when I tried to use it again,
the valve broke in half on the first shot. It looks like that this valve cannot handle the 220 bar, so
in my opinion if you store the airgun, at least do it with a lower pressure like 120 bar or so.

HP SS After Valve Rep (c) cropped.JPG
 
  • Like
Reactions: RAMJET66
The valve finally arrived and the airgun is in working order again, apart from the usual magazine jams...
So the issue was only the broken valve, not the trigger or a stuck pellet in the trigger block.
Basically the valve of this airgun is trash... I have also ordered the reinforced version from ebay
just to be on the safe side. This airgun would have been top if it had a proper valve pin and the
metal magazine from the JTS Airacuda max.

The airgun was left in the closet for 5 months with 220 bar pressure and when I tried to use it again,
the valve broke in half on the first shot. It looks like that this valve cannot handle the 220 bar, so
in my opinion if you store the airgun, at least do it with a lower pressure like 120 bar or so.

View attachment 434014
Glad you got it working again.

Yes the valve pin and mag are the aea s Achilles heel. Good looking SS. Love the CF shroud !

image.jpg
 
Last edited:
  • Like
Reactions: hgg2k
Can you (or someone else) think of what might be causing this kind of pellet deformation?
Before I installed the valve, I cleaned and lubed all the metal to metal moving parts and
it is cycling much smoother now. The mark is on the bottom of the pellet. Could it be that
the pellet probe is returning now faster than the magazine can rotate? It looks like that I need
a stronger magazine spring, what do you think?

Magazine Issues.jpg
 
Can you (or someone else) think of what might be causing this kind of pellet deformation?
Before I installed the valve, I cleaned and lubed all the metal to metal moving parts and
it is cycling much smoother now. The mark is on the bottom of the pellet. Could it be that
the pellet probe is returning now faster than the magazine can rotate? It looks like that I need
a stronger magazine spring, what do you think?

View attachment 434048
It does look like the probe but I’ll let Siccumj or Firewalker answer this. I was confused at your picture but remembered you aren’t shooting lead pelllets but copper.
 
  • Like
Reactions: hgg2k
It is the magazine spring! They are using a very weak spring and on top of that it looses tension fast.
The next pellet should be in position way before the probe returns after the blowback, but its not.
This airgun needs very good synchronization in order to work properly and they messed up.
They should have used a mechanism to cycle the magazine not with a spring but with the probe
action. Very bad design.

Anyway, I did not have any stiffer spring and if you try to install it in the magazine by turning it
twice, it will slip from the tiny hole. What I did was to design a small choke that will limit the
blowback air in half and insert it on the front 8 hole cylinder.

AEA Semi Auto Choke.png


I have now emptied the magazine 8 times and I only had a single jamming, so its definitely the wrong timing
caused by the weak spring!

The current spring has a 0.6mm thickness. I will try to find springs with 0.7mm thickness and try again.