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Old 05-06-2019, 11:26 AM   #1 (permalink)
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Emek squeak?

Somewhere in the firing cycle of my Emek, it has a little squeak or wheeze. It is air flowing by a seal during the shot or recharge. I'm thinking at the 3-way or the manifold gasket, but somewhere in the back end.

Do they do that in general, of do I have something hanging some where? It seems to work well and is very quiet otherwise.
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Old 05-06-2019, 11:33 AM   #2 (permalink)
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I have never noticed a squeak on mine, maybe a seal is dry?
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Old 05-06-2019, 11:46 AM   #3 (permalink)
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Input pressure of your tank is too high or your gun needs to be lubed.
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Old 05-06-2019, 11:48 AM   #4 (permalink)
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My gmek was a little farty last time out. Regreasing the 3 way spool fixed it. Id try that.
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Old 05-06-2019, 11:50 AM   #5 (permalink)
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Quote:
Originally Posted by ECAPNation View Post
Input pressure of your tank is too high
This is a thing? I usually run a 450, but I haven't had any squeaking with a 800.
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Old 05-06-2019, 12:01 PM   #6 (permalink)
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Yes.... Evidently for optimal operation 450 input is better.
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Old 05-06-2019, 12:11 PM   #7 (permalink)
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I believe the tank is around 650 (ninja standard minus one shim). Lube sounds like an easy start. It still has the factory lube in it. I don't expect it to be old on a PAL Emek, but it just finished its second case and, well, you know 3-ways.

It's just not a sound I'm used to associating with lube, outside of a regulator. I'll check that lube too, but I didn't notice any velocity problems.
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Old 05-06-2019, 01:44 PM   #8 (permalink)
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It's probably your pressure being so high, I'd just take out the rest of your shims.
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Old 05-06-2019, 02:00 PM   #9 (permalink)
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Quote:
Originally Posted by ECAPNation View Post
Yes.... Evidently for optimal operation 450 input is better.
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It's probably your pressure being so high, I'd just take out the rest of your shims.
Fair enough. I see that now on the PE site. I think the other markers that share the tank will be alright with that. Hopefully no lower than 450.

***

I checked the manual again; it doesn't say anything about input pressure.
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Old 05-06-2019, 03:50 PM   #10 (permalink)
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Mine is a squeaker as well. The squeak is on the trigger release as the system re-energizes. I've done some hunting, but I have not identified the exact cause yet. The gun runs like a top, and I don't hear it when playing, but it's definitely there.

I addressed the regulator first, because PE has had squeaking regulators before. I rebuilt and regreased the regulator with no success. I then greased up the spring to see if there was any sort of harmonic resonance or something fancy like that going on. Still squeaks. Oh yeah, I've been feeding it 4-500psi from a handful of air sources, no effect on the squeak. I don't think your 650 is causing any problems. The local field feeds their rental emeks with the same tanks they run on their tippmanns without issue.

Next I replaced the orings on the switch and back of the spool, because they are hit with new gas when you release the trigger. That did not stop the squeak.

I should also mention that I have been in and out of the 3 way a bunch of times. I have not replaced the seals, but it has been cleaned and regreased many times. It could easily be the custom seal on the end of the spool seating as pressure is reintroduced, but I have not replaced it.

My intent has been to borrow one from a friend and part swap until there is no more squeak. I really haven't thought about my squeak for quite some time, but your post made me think, so maybe I'll go hunting again this week. If I find anything new, I'll post it up here.
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