Huben Any issues or problems with Huben gk1 please share your experience
- Thread starter windowtintz
- Start date
New valve. Same as with the one i lost.. its chamfered so you dont get that circular imprint from the washer. No vent/notches .. got my from AGT so dont know if its a older revision.
Anyone know if this is PEEK? saw it asked before but i dont recall the answer.
Anyone know if this is PEEK? saw it asked before but i dont recall the answer.
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If the valve swap doesn’t work, the only thing i can do … not to fix it but prove theres a issue. Swap the barrel/mags on both with each other.
i really believe it has something to do with the closing valve assembly. It does what it’s supposed to do allowing more air to pass as tank psi lowers but sooner than it should.
It operates great 35 down 30, slowly increases per shot till about 25 mpa before it opens up.
If i run it at say 20 fpe with a 30 fill it will do great 30 down to 25. Then spike at 20 mpa.
I dunno, ive had 3 different springs in there, no difference.
Up top … 3 valves. 2 strikers and multiple different springs… no difference.
Maybe something machined off within the block. Swapping the barrels will tell me a lot.
i really believe it has something to do with the closing valve assembly. It does what it’s supposed to do allowing more air to pass as tank psi lowers but sooner than it should.
It operates great 35 down 30, slowly increases per shot till about 25 mpa before it opens up.
If i run it at say 20 fpe with a 30 fill it will do great 30 down to 25. Then spike at 20 mpa.
I dunno, ive had 3 different springs in there, no difference.
Up top … 3 valves. 2 strikers and multiple different springs… no difference.
Maybe something machined off within the block. Swapping the barrels will tell me a lot.
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No dice.. did extremely well through 1 mag 10-14 fps spread.
Next 10 almost 62 fps or almost 80fps including first magazine.
This was at 30 fpe.
35-26 mpa mag 1
26- 20 mpa 10 shots
Next 10 almost 62 fps or almost 80fps including first magazine.
This was at 30 fpe.
35-26 mpa mag 1
26- 20 mpa 10 shots
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Heres the 25 for comparison
1-17 i mag 7 fps spread (ok so there was 1 817 that i removed so 11 fps) haha
Highest it went to 854 or 44 fps spread through 35 shots or 2 mags. Gauge ended at 15 mpa.
MASSIVE DIFFERENCE.
1-17 i mag 7 fps spread (ok so there was 1 817 that i removed so 11 fps) haha
Highest it went to 854 or 44 fps spread through 35 shots or 2 mags. Gauge ended at 15 mpa.
MASSIVE DIFFERENCE.
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I have a theory. First valve i removed had white markings in 3 spots from the o-ring.
The 2nd valve was removed and it was sticking causing it to not close and slowly let out the air. This gun has never been right since day one. The only difference between it and the 25 now is the valve oring. The latest orings i got from Wolfiek group are black. I will see if i can post a video but the white oring is a little thicker. Its harder to slide the ring over the valve even with silicone oil. Theory is the firing valve is not cycling properly. Can imagine the white o-ring has a tighter hold when installed in the block.
The 2nd valve was removed and it was sticking causing it to not close and slowly let out the air. This gun has never been right since day one. The only difference between it and the 25 now is the valve oring. The latest orings i got from Wolfiek group are black. I will see if i can post a video but the white oring is a little thicker. Its harder to slide the ring over the valve even with silicone oil. Theory is the firing valve is not cycling properly. Can imagine the white o-ring has a tighter hold when installed in the block.
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You need a vent notch. The air bleeding into the firing valve closes it faster. Even a tiny one. As air goes into firing valve area to close firing valve, speed valve will open. As far as oring goes, I vote for the white urethane oring. Will deform less and drag less under pressure.
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It does have the notch on top if that is what you’re talking about?
Too late .. black o-ring installed.
Tomorrow will see if my theory was correct.
Next step is garbage can… haha jokimg.
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I think this is a non-problem. Just refill the tank after every magazine. Problem goes away.
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