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Post by airsoftmarine7 on Jul 29, 2009 8:30:29 GMT -5
Yesterday I was taking apart my M4 because I think one of the gears broke (the one with the little tab that pulls back the air nozzle head thingy). After dissembling the I happened to find out that I couldn't open up the gearbox because I didn't have the right allen wrench. Instead of setting everything aside until I picked one up today I started fucking around with the different stuff. First I grabbed the upper receiver and started pulling on the bolt. Eventually it came off and a had to superglue it back in place to keep it from coming off (the plastic part the holds the spring to the gun that is). Then, after still not learning my lesson I grabbed the Barrel/hop up unit. For no reason I pulled the hop up off. After struggling to put it back on, I found out this little piece fell out so now it has no hop up. I don't fell like putting it back on (though I may eventually) I set it aside. I went to set it back in the barrel and to my surrpise the spring went missing... Does anyone know if I need the spring for my gun to still fire? Here is a link showing my hop up and the spring. I am only going to be using this gun a few more times so I don't want to spend $20 on a new hop up/ barrel.
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Post by Knief on Jul 29, 2009 15:12:14 GMT -5
You need the spring for the hop up to seat correctly against the air nozzle. Mostly it helps in maintaining a tight seal between the nozzle and hop unit so air doesn't leak. My guess is, however, that you'll also get a lot of misfeeds without it.
You will want to replace the hop up nub before you play again, too. Otherwise, you won't be able to hit shit past about 40 feet, which pretty much makes your gun useless. You can buy a new bucking, and it'll come with a new nub. I'm sure you could find a new spring or pick one up at a hardware store for a few cents if you can ball park the size.
The gear you think you stripped is called the sector gear.
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Post by airsoftmarine7 on Jul 29, 2009 17:16:31 GMT -5
Ok thanks. The only game I know that I'll be playing with it is a CQB on the 22nd so I didn't think hop up would be needed. Ill and the nub back on and when I go to lows (did I spell that right?) I'll bring the hop up to show them and they should be able to tell me the right size.
Mod: lol, Lowe's didn't have anything, no spring and they didn't have the right size star allen wrench. I'm going to try to find a place over the phone tomorrow but does anyone have some ideas for where I could go?
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Post by Knief on Jul 30, 2009 10:17:53 GMT -5
You're looking for a number 10 Torx driver. Any hardware store should have it. I've got two sets myself, one from a local hadware store in Ann Arbor and another from like, Sears or some place. Ask for Torx drivers/wrenches. This is one of the sets I have: www.sears.com/shc/s/p_10153_12605_00941404000P?keyword=torx+screwdriverThe other set I have is the set version of these: www.sears.com/shc/s/p_10153_12605_00941655000P?keyword=torx+screwdriverI couldn't find the set on their website, so they might not carry it anymore. Regardless, you need the #10, so if you didn't want to buy a whole set, you could just get the single. In all honesty, those big box hardware stores aren't that good for getting small parts like springs and shit. Google hardware stores in your local area and hit a bunch to see if they carry small springs and such. And you really won't be able to get a hop up nub from anywhere but an airsoft store. Stop by Spy Ops or Spy King to see if they have any in stock. They're located in Lathrup Village near 11 mile and Southfield Rd. Those places will be the closest to you.
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Post by airsoftmarine7 on Jul 30, 2009 12:46:49 GMT -5
I still have the hop up nub, I found it on the floor when I was looking for the spring. I'm about to call up some local hobby shops and smaller hardware stores to see if they have what I need. Also, just checking... Saying the gear is striped will this work this work?
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Post by Knief on Jul 30, 2009 14:59:00 GMT -5
It should fit, but ICS is a pretty bad company to be buying parts for. See if you can find a SystemA, Guarder, or Prometheus gear on Airsoft GI or Airsoft Extreme or something. And generally, when you install new gears, you want to install an entire set, rather than just one. That way they're all the same strength and meant to fit each other. You never know if SystemA is making their gear teeth just slightly larger than ICS, for example, which could cause some serious problems.
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Post by airsoftmarine7 on Jul 30, 2009 18:07:29 GMT -5
Well I dont want to spend 30+ on a gear set when I'm getting a new gun soon anyhow. size 10 was too big, my gearbox needed a size 8 torx driver. When I opened it up the spring poped out and I had to gather everything up. Found out I lost all but one of the shims so I need new ones. Can you tell me what ones to get from here > www.airsoftgi.com/advanced_search_result.php?keywords=shim&x=0&y=0 < I read that systema might be too thick so now I'm confused on what to get. I'm leaving everything disassembled until I get the shims since, after dropping all the gears on the floor, they got some hairs on them I will clean and re-lube them when the order comes in. Oh, turns out the gear wasn't stripped. Can a nearly fried battery cause a gun not to chamber BBs? Lat time I was using it at a war it was working fine, minus the fact the batt. died after maybe 60-100 shots. About a month or two ago I tried firing It again, but no bbs shot out. When i self-loaded a bb into the barrel it shot out but otherwise wouldn't. After just now fully dissembling my gun, everything looks fine so my guess is that its the fried batt. And yes... the mag had ammo and was fully wound... all 4 that I tried.
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Post by Ghast on Jul 30, 2009 22:29:08 GMT -5
Sounds like a broken tappet plate to me but if I were you I'd just send it somewhere to get fixed considering your luck.
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Post by Knief on Jul 30, 2009 23:02:37 GMT -5
I've gotta agree with ghast. It sounds like despite your best efforts, you might end up doing more harm than good. Take the whole gun into Spy Ops and see if they can put it back together again.
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Post by airsoftmarine7 on Jul 31, 2009 10:46:48 GMT -5
How much would that cost? Anyhow the Tappet plate looks fine and unbroken.
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Post by Ghast on Jul 31, 2009 12:56:51 GMT -5
Well then my second guess is that spring that you lost. It's not pushing the hopup chamber back and as a result when your nozzle loads a new BB, it falls short of the hopup chamber and won't fire. It'll just drop down between the mag's feed tube and the hopup chamber. Again, just an educated guess.
The reason that it works when you muzzle load the gun is because the BB actually made it into the barrel to be shot.
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Post by airsoftmarine7 on Jul 31, 2009 13:48:39 GMT -5
I lost the spring when I disassembled the gun, not when I was trying to find it before. My only guess on whats wrong is the battery was overcharged too many times coupled with the fact its a jg stock batter = not enough power to pull back the nozzle (I can't find it now but I read online before that can happen). Also I just thought It could be the ammo I was using. I ran out of my Airsplat Brand BBs and was using crosman .20gs from super k.
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Post by Ghast on Jul 31, 2009 15:37:15 GMT -5
Yes but the nozzle is mechanically linked to the the tappet plate which is moved by the gears. So if the gearbox turns and the tappet plate is intact, then the nozzle will load another round. The charge of the battery is irrelevant, so long as it can cycle the gearbox.
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Post by Knief on Jul 31, 2009 15:46:01 GMT -5
Ghast is once again right. I'm sure it's a problem with the placement of your hop up unit. I can't tell you how much Spy Ops will cost. Give them a call, their phone number is on their webpage
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Post by airsoftmarine7 on Jul 31, 2009 15:55:46 GMT -5
Oh well. The only game I'll be going to before I get my new M4 is the Phoenix tactical and I can just rent a gun there. One day I might put it back together for the hell of it. Until then It'll just be laying around.
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