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Old 08-04-2014, 05:58 PM #1
Géant_Noir
 
 
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Axe velocity drop on ramp

Hi everybody.

My backup Axe disliked to stay off for 2 months. I put the air on last week, when I shot slowly all is good. But in ramp the velocity drop 280 to 200. I saw the reg pressure drop a lot. So I watch the ****** video for the regulator maintenance and I lube the bolt and the poppet.

So now I don't see a drop off pressure on the reg gauge but I see a velocity drop on a shooting line. Occurs only on fast shooting. Also, when I air up, the first ball is only shot 6 feet in front of me. All other single shot are ok.

Your diagnostic?
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Old 08-04-2014, 07:06 PM #2
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You said you watched the reg maintenance video, but did you actually do maintenance on it? If not, you can try putting a few drops on oil in the ASA.
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Old 08-04-2014, 08:11 PM #3
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Yeah I watch de video and I do the maintenance. Before the maintenance I try to just put few drop of oil on it and that change nothing.
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Old 08-04-2014, 08:19 PM #4
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Sounds like you need to rebuild the reg if you're observing slow recharge.
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Old 08-04-2014, 11:51 PM #5
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Quote:
Originally Posted by ironyusa View Post
Sounds like you need to rebuild the reg if you're observing slow recharge.
I think he already did:
Quote:
Originally Posted by Géant_Noir View Post
Yeah I watch de video and I do the maintenance. Before the maintenance I try to just put few drop of oil on it and that change nothing.
I'd try changing your battery next.
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Old 08-05-2014, 12:01 AM #6
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If he did a rebuild and still has recharge issues then he likely overlubed the piston orings. I'm basing on the fact that he says he saw the reg pressure drop. The only way to fix that if oil doesn't work is to rebuild the reg.
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Old 08-05-2014, 04:32 PM #7
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I relube the reg piston, but I don't change any o-ring.
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Old 08-06-2014, 04:27 PM #8
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I'd be willing to bet you overlubed the orings... It seems pretty picky in my experience. A super slick lube like Lurker juiced helps or thinning some dow33 with paintball oil.
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Old 08-06-2014, 05:15 PM #9
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hum... Ok I use Sleek Honey lube and try to just put a really tiny coat. I will try to relube it again.
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Old 08-06-2014, 05:28 PM #10
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Fresh brand name battery. Also, make sure the reg is on 200 psi. If it's low you'll have issues. There are parts that allow you to lower the pressure. But they run at 200 psi stock.
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Old 08-06-2014, 08:13 PM #11
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If you're opening the reg again anyway, go ahead and replace the 2 -017 orings on the piston. It will take a little break-in, but should fix it.

All the other things people are saying are things I'd suggest if you weren't seeing a drastic drop in the pressure output on your reg. The stock axe absolutely doesn't have to run at 200psi either.
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Old 08-07-2014, 05:23 PM #12
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If you're opening the reg again anyway, go ahead and replace the 2 -017 orings on the piston. It will take a little break-in, but should fix it.

All the other things people are saying are things I'd suggest if you weren't seeing a drastic drop in the pressure output on your reg. The stock axe absolutely doesn't have to run at 200psi either.
Ok Thanks.

And that o-ring can make the first ball drop only at 6 feet down the barrel for the first ball only when I put the air on?

You are sur for the o-ring size? I don't find any exploded view of the reg with all part. If I don't have this size of o-ring I want to be sure I order the right think.
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Old 08-08-2014, 12:25 AM #13
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It's right. I use HNBR on both spots on the piston.

That doesn't sound like what you were originally describing though. I thought you could actually see the pressure drop on the gauge? If it's just that dropped shot then reset/ clean the noid, replace the battery and relube the poppet oring.
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Old 08-08-2014, 01:39 AM #14
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Quote:
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You are sur for the o-ring size?
One thing you can be sure about is that you can be sure of irony. I swear that guy knows everything about the axe/mini.
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Old 08-10-2014, 01:57 PM #15
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Thanks Ironyusa I will order the o-ring and rebuild the reg.

I see the drop of pressure on the reg. First time before relube the reg the drop was 40 psi maybee on ramp and now maybee 10 psi. And during all this time the first ball drop only at 6 feet down the barrel for the first ball only when I put the air on. All other single shot are perfect and the velocity drop on ramp.
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Old 08-10-2014, 02:31 PM #16
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10psi isn't bad. Try changing the poppet oring, reset the dwell (assuming stock bolt) and clean the noid (keep it dry).
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Old 08-10-2014, 03:07 PM #17
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Ok thank you.
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Old 08-22-2014, 02:45 PM #18
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I clean the noid and now all is perfect.

Thanks all.
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Old 08-23-2014, 12:54 PM #19
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And thanks for coming back to let us know you fixed the issue and what the solution was. It really helps others when they have issues and find threads with both the issue and solution. Far too many people just take the advice and never come back with an update.
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