EVOL Help with a leak

[Dairyboy]

None of that makes sense but could be wrong I guess. Hopefully it's not the case

 

[Madeintheuk]

Ok. Reseal done and still leaking. Faster this time, so I was able to soap it and find the leak.

Damn burst disk is leaking.

So where do i find replacements?

Thanks in advance!

 

[Bladebum]

https://www.amazon.com/10Pcs-Explosion-proof-Rupture-YONGHENG-Compressor/dp/B07C4RZJQJ/ref=asc_df_B07C4RZJQJ/?tag=hyprod-20&linkCode=df0&hvadid=642201848351&hvpos=&hvnetw=g&hvrand=2418689712697249058&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9032290&hvtargid=pla-1412632145169&psc=1&gclid=CjwKCAjwvfmoBhAwEiwAG2tqzBlVrSYMTQ4dZaP0ddcN1i9mCePO-gWQPBsYF48kKZLbMtpvI2d4OBoC6DUQAvD_BwE

I would imagine these would work

 

[Madeintheuk]

https://www.amazon.com/10Pcs-Explosion-proof-Rupture-YONGHENG-Compressor/dp/B07C4RZJQJ/ref=asc_df_B07C4RZJQJ/?tag=hyprod-20&linkCode=df0&hvadid=642201848351&hvpos=&hvnetw=g&hvrand=2418689712697249058&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9032290&hvtargid=pla-1412632145169&psc=1&gclid=CjwKCAjwvfmoBhAwEiwAG2tqzBlVrSYMTQ4dZaP0ddcN1i9mCePO-gWQPBsYF48kKZLbMtpvI2d4OBoC6DUQAvD_BwE

I would imagine these would work

I don’t think they are the same style.

 

[Bladebum]

I don’t think they are the same style.

I legitimately don't know for certain, but I didn't think there were different styles. Did you already try one or hear from someone they are different?

 

[Dairyboy]

Captain O-Ring HPA/CO2 1.8k / 3k / 5k / 7.5k Burst Disk - 2 Pack (Compressed Air Tank Paintball) [Bonus CO Microfiber Cloth] https://www.amazon.com/dp/B00B7APP84?ref_=cm_sw_r_apann_dp_T5F9WJZS77JDCVX48HY0

Ninja Burst Disk - 1800, 5000, 7500 psi

Pittsburgh Paintball Supply has the absolute cheapest prices on all paintball guns, equipment, and clothing.

pittsburghpaintballsupply.com

Depending on what color you want black or silver

 

[Bladebum]

So unless I'm missing something here, that whole screw unit of the burst unit does not need to be replaced, only the little disc in between. I have never replaced mine, but I have taken it all the way out, and that's all it appears to be.

 

[Dairyboy]

On these you replace the whole thing

 

[Bladebum]

Proper cleaning. I removed mine for the tear down just because.

Sorry just saw this comment, I am very confused, you removed the barrel tensing nut to clean the barrel?

 

[Bladebum]

On these you replace the whole thing

Very interesting. I would have thought just a new disc would be all thats needed

 

[Madeintheuk]

@Bladebum
1. I misunderstood the tool you were talking about. The barrel needs to be removed, the shroud does not. In fact, I will never mess with mine with fear I’ll screw up the correct tension.

2. there is nowhere for that “replaceable” burst disc to go. The piece seems to be all in one. There is no disc underneath it, it is inside the screw, which is non serviceable.

 

[Madeintheuk]

Ok, so I figured it out. My apologies to @Bladebum. The burst disc fits under a brass sleeve on these screws that seals to the breech. On mine, the brass sleeve was deformed and not sealing. It wasn’t the actual burst disc. Buying the entire screw assembly remedied my issue.

 

[Madeintheuk]

Another update. Gun is STILL leaking, but super slow. The burst disc fixed the big leak, the small leak is untraceable by soapy water. To rule out the front gauge and foster, I placed a balloon over the front housing, and we’ll see tomorrow if it blows up or not. If not, I’m kind of stumped where the leak is from. The only orings I didn’t replace were the internal reg orings from being told they NEVER leak. Lol.

 

[Bladebum]

@Madeintheuk no apologies needed! To me thats exactly the point of these forums, to leave egos at the door and learn new things.

Glad you got it figured out, I actually had mine apart today to do a reg adjustment and decided to pull my burst disc all the way out. So, the burst disc from a yong heng(i think where i got the larger ones) are actually too big. I had some smaller ones in my kit(no idea from where) that fit perfect. I did already order two new burst units and they are cheap enough at 9 bucks on Amazon. So if the smaller discs can't be found no biggie.

 

[Bladebum]

Another update. Gun is STILL leaking, but super slow. The burst disc fixed the big leak, the small leak is untraceable by soapy water. To rule out the front gauge and foster, I placed a balloon over the front housing, and we’ll see tomorrow if it blows up or not. If not, I’m kind of stumped where the leak is from. The only orings I didn’t replace were the internal reg orings from being told they NEVER leak. Lol.

View attachment 2182

Maybe try putting another balloon over the barrel. If it is a leaky valve body it might help detect that. A leaky reg i would think would just show a bunch of reg creep on the guage if the valve is still sealed up good. Did you replace the reg guage spacer seal?

 

[Madeintheuk]

Maybe try putting another balloon over the barrel. If it is a leaky valve body it might help detect that. A leaky reg i would think would just show a bunch of reg creep on the guage if the valve is still sealed up good. Did you replace the reg guage spacer seal?

I did put the balloon over the barrel first. Checked out ok. I did replace both the spacer oring and gauge oring. The internal orings can either cause creep, or the reg to vent pressure when its not supposed to. This reg vents through the tube threads via a notch in the threads. So if the reg leaked internally, it should show bubbles around the rear of the tube where it meets the block. Again, maybe the leak is too slow to pick up with soap, but I’m not sure another way to detect a leak there.

 

[Luis Leon]

Is your Atomic leaking …?

 

[Dairyboy]

I did put the balloon over the barrel first. Checked out ok. I did replace both the spacer oring and gauge oring. The internal orings can either cause creep, or the reg to vent pressure when its not supposed to. This reg vents through the tube threads via a notch in the threads. So if the reg leaked internally, it should show bubbles around the rear of the tube where it meets the block. Again, maybe the leak is too slow to pick up with soap, but I’m not sure another way to detect a leak there.

Not necessarily.....my Evol leaked by the threads by the reg cause I used the wrong oring to seal the reg to the tube. I got buna 70 by accident before and never looked but replaced with a 90 poly and stopped the leak. Just happened when I did my foster fitting. Only bubbled by the vent on the threads.

 

[Bladebum]

An ultrasonic leak detector can be found on Amazon for not too much money. Or if your brave enough (I'm not) you can dunk your airtube up to the reciever, that will absolutely find your leak.

Even though its not common, very possible you could have leaking reg internals.

 

[Jessairz]

No I see no reason to get the shroud removal tool. But yes you can try the foster fill fitting and gauge on the front block first to see if that's the problem and save a complete tear down. I however prefer to replace all main orings if I'm going to degas anyways but that's me.

If you don't buy the shroud removed tool, how do you unscrew the shroud. I'm very curii

I am sure Tom is still making them. I would reach out to him to be sure.

Is there another tool I can use to remove the barrel shroud?
$100 plus tax and shipping is out of reach for me now (as many many other people keeping a close eye on home budgets too.) Thank you in advance for any help