I broke mine as well accidentally when i shot the valve out to depressurize it the 1st time-luckily that part is easy to replace
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Huben Any issues or problems with Huben gk1 please share your experience
- Thread starter windowtintz
- Start date
Wow I'm surprised that happened. I got a replacement just haven't installed it yet since I've been shooting with a red dot.
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Update-so after replacing the closing valve, guage, and tank seals, I have no more leaks. I also used rc gear diff silicone oil on my aeals
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Mine was doing just fine. The striker kept sticking a couple more times draining my air. Did the usual thing to unstick it. Put it back together filled to 350 loaded it up with JSB kings. Pulled the trigger and BOOM dumped the full 350 fill and shattered my 3d ldc. Pulled it apart again reset the striker put to tether again filled to 200 added pellets. Boom same result. Noticed this time I couldn't move the striker. Seems that the V3s have this problem. My .22 v1 no problems to speak of.
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Shame when your gun lets loose like that and ruins a perfectly good moderator. These hand canons seem incredibly nuanced, from requiring specific ammo (not too loose, not too tight), to having random malfunctions such as your experience. Hopefully you don't go blowing up more mods, I've heard too many accounts of the gun draining itself rapidly for me to trust them day in and day out 24/7 at their price point.
-Matt
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If the closing valve is not closing properly, it can dump air. If the striker sticks open, it will slowly drain the reservoir (which is actually the preferred method to drain, take out spring and fire).
It sounds as though you have a closing valve issue.
Dave
It sounds as though you have a closing valve issue.
Dave
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10-4. Although not likely fatal, the launching of unexpected bits and pieces from a powerful airgun is never pleasant or welcome, as they will veer off the intended trajectory path of our poa. I'd have minor ptsd after a single event like this and would probably avoid 3d printed designs on a gk1 personally if I owned one.
Complicated valve mechanism designs net complicated points of failure and solutions! Hope you get it back up and running soon.
-Matt
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Hi Dave
Closing valve issue huh. I thought maybe some kind of broken return spring of some sort. Any way gotta buy a 7mm Allen key sometime today.
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When there are problems and something does need to be fixed....
How easy or difficult is the gk-1 to service and/or repair?
How easy or difficult is the gk-1 to service and/or repair?
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I think it would be a closing valve issue because it’s the one that sets power/dwell. The opening valve blows open, the closing valve shuts the air off (mostly, it has a small bleed), the opening valve resets (via spring), closing valve reopens for next shot.
The closing valve is accessible from the bottom, under (above actually) the power adjuster. There are a couple springs on either side of a plastic valve.
Dave
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Looks like the opening valve failed. Pretty sure the little pin isn't supposed to be sticking out the side.
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Not quite catastrophic but definitely significant. Did it damage the receiver bore?
I still feel that something must have abnormally affected the closing valve. The opening valve can literally be allowed to blow out the back and caught with a rag and only create a single blast and a slow leak down of reservoir. Hmm? Interesting.
Dave
I still feel that something must have abnormally affected the closing valve. The opening valve can literally be allowed to blow out the back and caught with a rag and only create a single blast and a slow leak down of reservoir. Hmm? Interesting.
Dave
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It sure looks like it rubbed a groove in the bore dang it! I'm wondering if the pin is part of the valve or what.
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I’m still curious what the failure was. The last time I looked closely at the opening valve, I didn’t see evidence of a pin in the assembly but it is possible.
I will also be curious if they ‘fix’ the scored bore or replace the receiver. If the sealing areas were not disturbed, it shouldn’t be an issue.
What vendor are you dealing with?
Dave
I will also be curious if they ‘fix’ the scored bore or replace the receiver. If the sealing areas were not disturbed, it shouldn’t be an issue.
What vendor are you dealing with?
Dave
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KRAZ COOL is going to replace the breech. I packaged up the breech and parts and already mailed them to Kelly.
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Matt, do you own a GK1? I think if you did, you would realize what an exceptional pistol it is. I'll give you dollars to a donut the above fault is not the gun!
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