Zelos Slow Leak 😒

TC2Mc

Member
Aug 5, 2024
18
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Just got a zelos and it’s leaking air slowly. The pressure gauge is dropping but the reg gauge is staying where it’s set even after the pressure gauge has dropped below the reg. So I can rule out the poppet valve right? Any ideas where it’s leaking from and has any one else dealt with this problem already?
 
I never got another replacement after 3rd. It was probably something simple honestly. Problem was the gun was so new then there wasn’t even a oring list at that time. If I got one now and it leaked I might just fix it. Although you shouldn’t have to on a new gun.
Great guns for the price I’m just super

I never got another replacement after 3rd. It was probably something simple honestly. Problem was the gun was so new then there wasn’t even a oring list at that time. If I got one now and it leaked I might just fix it. Although you shouldn’t have to on a new gun.
Great guns for the price I’m just super unlucky lol.
Well i hope they have corrected kinks, and if not I'm hoping the knowledge from experienced gunners can aid me to the desired conclusion, because issues are promised
 
Mine has been great, no leaks, shoots like a laser,
I find when a gun leaks it is usually 6 things,
#1- Fill port o-ring seal, sometimes they get hard and crusty usually #5 or #6 o-ring size, replace as needed or use Silicone oil to relube.
#2- Fosters Fill port threads not sealing- bad Teflon tape or not tight enough on Delrin seal
#3- Loose or leaking Manometer Gauge- tighten or replace
#4- Loose air bleed screw- Tighten to properly seal - I bought many air guns that no one could find leak and was only a loose Bleed screw
#5- Regulator O-ring leaking- usually poorly assembled with chaffed o-rings
#6- Poppet leak, cracked of worn out poppet- do balloon test on barrel

easy fixes for some leaks, put 5-10 drops of Silicone oil in the fill hose or probe depending on your fill port type, pump the Silicone oil into the gun along with air, fill air to normal fill pressure, shoot gun to off regulator or to 1500 psi, this allows Silicone oil to circulate through the air gun, if leak stops, leak was caused by dried O-rings, oil will relubricate O-rings and help make a better seal, usually it will be a leak at the fill port o-ring.
Make sure all threaded items are tight enough for a proper seal.
Noted.
 
Just got a zelos and it’s leaking air slowly. The pressure gauge is dropping but the reg gauge is staying where it’s set even after the pressure gauge has dropped below the reg. So I can rule out the poppet valve right? Any ideas where it’s leaking from and has any one else dealt with this problem already?
check the Fill port, if you have to , put a balloon on it, use a rubber band wrapped around it, make sure the Bleed valve screw is sealing properly, back it off then retighten very snug, last check the gauge, make sure it's snug tightly do not over tighten anything very snug is good for most parts, you can put a balloon on a Gauge too to see if it has an internal leak, Latex rubber gloves work as a makeshift balloon, use rubber bands to wrap the sealing end, also try 5-10 drops of Silicone oil in the filler hose and pump it into the air cylinder of the gun, this will lubricate any O-rings that might be dry and possibly leaking.
you know it's not leaking on the regulated side of the regulator, then it just leaves the high side of the regulator of the gun and air cylinder, should be easy to locate leak, my bet it's the fill port valve o-ring.

read:
Mine has been great, no leaks, shoots like a laser,
I find when a gun leaks it is usually 6 things,
#1- Fill port o-ring seal, sometimes they get hard and crusty usually #5 or #6 o-ring size, replace as needed or use Silicone oil to relube.
#2- Fosters Fill port threads not sealing- bad Teflon tape or not tight enough on Delrin seal
#3- Loose or leaking Manometer Gauge- tighten or replace
#4- Loose air bleed screw- Tighten to properly seal - I bought many air guns that no one could find leak and was only a loose Bleed screw
#5- Regulator O-ring leaking- usually poorly assembled with chaffed o-rings
#6- Poppet leak, cracked of worn out poppet- do balloon test on barrel

easy fixes for some leaks, put 5-10 drops of Silicone oil in the fill hose or probe depending on your fill port type, pump the Silicone oil into the gun along with air, fill air to normal fill pressure, shoot gun to off regulator or to 1500 psi, this allows Silicone oil to circulate through the air gun, if leak stops, leak was caused by dried O-rings, oil will relubricate O-rings and help make a better seal, usually it will be a leak at the fill port o-ring.
Make sure all threaded items are tight enough for a proper seal.
 
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All my Snowpeaks eventually developed a slow leak around the fill port area. I took them apart and cleaned everything and applied new silicone grease and didn’t have any more issues. Now when I get a new Snowpeak I do it as part of the pre-shooting protocol. I’ve found that my Snowpeaks are some of the best at holding air after I do a complete disassembly and cleaning.
 
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