EDgun Inherited some airguns. This Edgun I cant figure out!

Pic of your regulator and plenum.. most likely the oring with the red arrow pointing at it. Could be as easy as relube, but if i tore it down i'd replace the orings with new.

View attachment 388348
That’s the one that failed on mine. Exact same story. It shot ok with the air that had been in there for a year and turned into an unregulated gun as soon as I refilled to 250bar. The oring was not broken or damaged but had extruded. The replacement was a tighter fit.
 
That’s the one that failed on mine. Exact same story. It shot ok with the air that had been in there for a year and turned into an unregulated gun as soon as I refilled to 250bar. The oring was not broken or damaged but had extruded. The replacement was a tighter fit.
Interesting. But like even an unregulated gun usually has a more gradual slope curve though right? Kind of looking something like this

1694572686181.png


Mine looks like a straight, constant incline if plotted. Wouldnt have been what I expected.
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Going to order the oring and will report back. Think I should just replace all 3(?) on the reg/plenum. 2 on the outside and the one inside if I recall. I put it back together already lol. Pretty sure there were 3 :giggle:
 
And be sure to check for leaks around that bleed screw after reassembly!
Interesting. But like even an unregulated gun usually has a more gradual slope curve though right? Kind of looking something like this

View attachment 388464

Mine looks like a straight, constant incline if plotted. Wouldnt have been what I expected.
View attachment 388465

Going to order the oring and will report back. Think I should just replace all 3(?) on the reg/plenum. 2 on the outside and the one inside if I recall. I put it back together already lol. Pretty sure there were 3 :giggle:
You don’t show the reg pressure values on the X axis. Speed would decline once you get below ~120bar tube pressure. If not, you have a physics-defying miracle Leshiy.
 
I want to sincerely THANK all of you who took the time to respond to this post and put up with my total lack of knowledge questions regarding this gun.
Took it apart and replaced/lubed the regulator orings and put it back together and filled the tank back up last night (I'll admit nervously thinking I screwed something up and it was going to blow up on me :ROFLMAO: ) None the less everything seemed normal. Left it sitting over night at 270bar and checked it in the morning, hoping the tank wasn't half empty from a leak I created lol. Nope! 270bar on the nose!

Grabbed a new tin of JSB 15.89gr that I also ordered and set up the chrony and a target at 35 yards. WOW! Had to totally re sight in the scope I threw on there but here are the results!
Chrony readings: LOW 811fps HIGH 823. The high was that one hole that sits abv the rest right as it got down to 130-120b

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The shots were so on top of each other they made 1 big hole in the putty and ended up punching a hole through the back of the plywood backstop!

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I forget who first called out the regulator oring as the issue(But if you are ever in Central OH area, Beers are on me!) but all of you gave me such good info and helped me get in the right direction on a gun ive never heard of before in my life until a week or so ago.
 
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That’s great! Be aware that some of them have a trigger issue whereby you can cock the gun, activating the safety only partially by folding and then it can fire when you deactivate the safety. One fix is to add a buffer to prevent it folding enough to activate the safety but the better one is to add a spring under the trigger sear. The latter can be combined with a spring plunger to create a nice two stage trigger, although some folks actually prefer the unpredictable single stage break.

Here’s a vid of mine:
And this explains how to do it:


Finally, some discussion of which plunger works best:


For me, that mod transformed it into my favorite peewee pester…
 
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That’s great! Be aware that some of them have a trigger issue whereby you can cock the gun, activating the safety only partially by folding and then it can fire when you deactivate the safety. One fix is to add a buffer to prevent it folding enough to activate the safety but the better one is to add a spring under the trigger sear. The latter can be combined with a spring plunger to create a nice two stage trigger, although some folks actually prefer the unpredictable single stage break.

Here’s a vid of mine:
And this explains how to do it:


Finally, some discussion of which plunger works best:


For me, that mod transformed it into my favorite peewee pester…
Hmm I'll have to try this. yes I had the issue once already where safety didn't go in all the way and and when I thought I was taking it off, the gun shot. I thought I just hit the trigger. I was upset with myself because here I thought I was being careless. I knew I didn't touch the trigger! a two stage sounds nice