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Post by Ice on Dec 19, 2003 22:14:00 GMT -5
ok, i upgraded my M4A1 the other day and the mechbox is working fine but the engine placement is kinda screwy. i cant seem to get it in there right, when i can get it in and it shoots i normally have to loosen the 2 screws for the plate under the grip a little themselves. and even after that it still will only shoots about 10-20 bb's then i switch to full and shoot another 10-20 bb's and it wont turn anymore and you can hear the normal clicking of the motor head trying to turn like its pushed to far into the gun. any help would be appreciated, thanks
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Post by DE50man on Dec 19, 2003 22:20:19 GMT -5
my suggestion, tighten the grip plate as much as possible, and then procede to loosen the engine placement screw (tiny hex), if that doesnt work take the motor out and check for anything that might not belong in their (i.e. a Camel or dog)
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Andree
New Member
No one will fear me... How can you fear somthing that you have never seen,at its full potential
Posts: 464
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Post by Andree on Dec 19, 2003 22:29:38 GMT -5
Ok how much is it upgraded? How good is your battery? I have an upgraded m4 and same problem,(not as badly tho) but i had an 8.4v 600 mah battery I was told for my upgrade(400fps) i needed atleast an 8.4v 2000 mah, or else a 9.4v battery... Maby try a bigger battery to turn the motor
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Post by luke213 on Dec 19, 2003 22:38:08 GMT -5
Well the only thing I can say is it's a motor:) Engines take gasoline, so unless you kicking a lawn mower engine on your gun:) It's a motor. Aside from that the only thing I've heard is tighten it till it won't fire then back it out till it's correct.
Luke
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Andree
New Member
No one will fear me... How can you fear somthing that you have never seen,at its full potential
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Post by Andree on Dec 20, 2003 0:17:20 GMT -5
True but its like running a corvet with deiseal... Not sure thats a good example(im not a car person) The motor needs a strong current to spin the motor, and if you make the speed faster, for stronger springs, it should be the same as a normal speed, for avarage springs, Where if you have a normal speed with stronger spring, it will take longer, and theres a chance it could lock up, To have your gun shoot, im pretty sure its the battery voltage....
It seemed he alredy tried replacing the motor cause he said the motor placement is screwy and hes been messin with the plate at the bottom of the grip
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Post by Ice on Dec 20, 2003 0:17:47 GMT -5
I put the engine in, I tighten down the plate. And then adjust the allen screw until it stops screeching. Afer about 20-30 rounds, and flipping from semi- full auto it starts making a clicking sound. It has a pdi 140 in it, and has a 9.6 1700 mah. So i dont think the battery is the prob. I have blown many fuses, and have taken out the engine prolly close to 30 times trying to get it back in a different way to fix it. But it still shoots perfect for 20 shots then nothing.
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Post by luke213 on Dec 20, 2003 8:51:21 GMT -5
I know this may sound stupid and simple and I'm not in any way trying to insult you:) But when you pulled the motor did you by chance loose the little round shim that goes between the motor base and the adjustment screw in the grip? That would likely cause it to not engage the gears rather than lockup and the other thing is since you just took down the mechbox check your shims, if it's mis-shimmed it could lockup like that.
Luke
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Post by Ice on Dec 20, 2003 10:07:38 GMT -5
Nope thats in there right.
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Andree
New Member
No one will fear me... How can you fear somthing that you have never seen,at its full potential
Posts: 464
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Post by Andree on Dec 20, 2003 11:35:52 GMT -5
So the fuse box is still in? If it is i believe you need to remove it, it causes resistance and slows the current down. Try taking the fuse out and connecting the 2 metal brackets and see how that works
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Post by Ice on Dec 20, 2003 11:52:17 GMT -5
After i ran out of fuses i connected the wires together to complete the circuit. Now when the engine doesnt turn the battery gets hot and i have to be extermly cautious. It basically comes down to what i believe, the engine either not staying in place. or something causing it to freeze up like it is.
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Post by Bigmack on Dec 20, 2003 12:12:02 GMT -5
First off... The M4/M16 grip is by far the worst grip for any airsoft weapon. if you don't get the wires JUST right...the motor can't 'Float' on the spring. You need to line the wires in the groove properly so that the motor will move up and down freely on its spring when you're done with it.
once you've accomplished that, you'll need to tighten the screw all the way...til the motor cannot turn any longer... then relieve the pressure by 1/4 turn increments until the motor can operate fully once again.
So far as the fuse is concerned... i've blown every fuse i've ever had by using 9.6v batteries. as a consequence... my rifles are hard wired (no fuse)
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Post by luke213 on Dec 20, 2003 13:18:28 GMT -5
I'm going to disagree with the fuse removal deal, if your battery is huge(mah) then you may have to go to a larger fuse like a 30a or so. But I can't think of any good reasons to remove it. The fuse will not cause enough IR(Internal Resistence) to warrant it's removal. IR in a battery is a concern but the wiring and connectors will not make a noticable difference in any normal AEG. Just my thoughts, it's allot easier to fix a blown fuse than to tear things apart if I blow something else up:)
Luke
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Post by Munin on Dec 21, 2003 22:27:34 GMT -5
I concur with Bigmack, wire placement in the M16 series rifles is extremely important. If your wire placement is off, your motor can get wedged in the grip in the wrong place and either a) be stuck too fat in, not be able to turn freely, and blow fuses, or b) be too far out and not able to engage all the way, leading to gear slippage (and the associated squealing).
The other thing that can happen is that you can push the motor in and get it wedged against the wires, but as the motor vibrates anf the gear force pushes it backwards, it will eventually disengage and stop firing. That is, the motor will still turn, but it won't be spinning any gears in the mechbox.
Does this sound like your problem?
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Post by Ice on Dec 22, 2003 0:01:52 GMT -5
Yes it is, I am going to mess with the wire placement. I took it apart again and made sure the black wire was in its groove. The red wire was on the other side running up but there is no groove for it. I put the engine in as far as it would go. Then put the metal disc in. Then the bottom of the grip on. It fired for about 10 shots on semi where then it went click. Either i think i fixed it and my battery died, or i am contiuing to have problems. I shall update you when i get a fresh charge.
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Post by Munin on Dec 22, 2003 10:54:39 GMT -5
On my SR-16 (different gun, but same handle/motor design), both wires run along the same side of the motor. This means that the longer wire (red? black? I can't remember) actually crosses the grip cavity above the motor, runs along near the other wire, then crosses back across the bottom of the motor to make its connection.
Also, you said you pushed the motor all the way in as far as it would go, then put on the spacer, then affixed the bottom plate. When you pushed the motor all the way in, did it stay? It shouldn't. It should float freely and be pushed back out by the spring. If your motor stays in when you push it into the grip, it usually means you're hanging up on your wires.
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