Tuning Lcs sk19 leak

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munkyman808

munkyman808

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Dec 17, 2020
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I have an lcs sk19 in .25. It’s been a great gun but it currently has a leak I cannot find it’s hissing like crazy I changed out all the o rings but I’m worried about digging deeper into the gun and breaking or loosing a spring across the room. The leak is coming from under the rear safety. I can’t find any diagrams or info other than the videos posted on aoa about o rings. Any help would be very much appreciated. 
 
I have an lcs sk19 in .25. It’s been a great gun but it currently has a leak I cannot find it’s hissing like crazy I changed out all the o rings but I’m worried about digging deeper into the gun and breaking or loosing a spring across the room. The leak is coming from under the rear safety. I can’t find any diagrams or info other than the videos posted on aoa about o rings. Any help would be very much appreciated.
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Is yours already out of warranty? Not enough people worked on theirs yet to give accurate advice probably because of the warranty.
 
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Send it back to AoA. Mine has spent more time in shipment and repair than shooting it. I couldn't find a schematic for it before I tried to fix it myself, that damm spring went flying, never did find it, Mines been back 5 times for repair. If you have an early one there wa s a design flaw, some valve, it'll sound like its leaking from the back. they replaced the rear end of the rifle, haven't tried shooting it from the last repair, hopefully it's fixed. AoA has graciously paid for return shipping from the second time on, no complaints with them. It's a great gun when it works. I'll buy another when all the bug are worked out. TAKE LOTS OF PHOTOS! Good luck
 
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monkeyman, I had the same issue after about 5000 pellets. One minute it was shooting fine then, I heard a leak and tried the same thing as you did. Replaced all the o'rings I could but the it kept leaking and I could not locate it. I could never get it to fill with air fast enough. There is a valve inside that AOA said needed to be replaced. The service person said it was very difficult to fix. Got it hack about two weeks later and have been shooting it for about 6 months with no new issues.



Mike
 
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Kendive, I have an LCS in 25 and I had a leak after 5000 pellets, Got it fixed for free by AOA. AOA does great work. I have to admit, if I had two and both leaked, I would give up. Especially considering the price. I also have a Huben K1 in 25 and I find it superior in everyway with the exception of shot count and the cleaning the barrel. If I were you, unless you really wanted or needed the full auto function, I would look at a Huben in either 22 or 25 which ever you prefer. I would also go to Krazcool for a Huben. He can fix everything he sells. Just my advice. They are both great guns and are fun, but when it keeps breaking, they are no fun.
 
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I send my back and they fix it within the week and I had it back within 2 week The 367 was not charged to me but that is what it would cost if they were to charge you out of warranty Airgun of Arizona is the best I've dealt with Great guys great business class return On the bill it says it was like $367 repair for that same issue you're having With the back end leaking its internal Recommend let the pros work on it Other than that The rest is easily repairable. 

Now I have a question Does anybody know the best Nielsen slugs for the sk19 LCS.25 slugs
 
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