Repair issuses..... I'm stumped?

[Vamp]

Alright so the scenario was that when playing in op: Ressurection 2(kickass op by the way) I got out onto the field with an Echo 1 M4 S-System running a 11.1V lipo. Fired two short bursts and then on the third all I recieved was a high pitched whine. I have since torn the gun apart and all of the internal components seem to be in good shape but when put together the whine is still there. It sounds as if the spring is not being pulled back but all the gears are functional. I have no idea what to do anyone got some repair knowledge for me?

[Jester316]

Sounds like your motor is out of alignment. There is a small allen screw in the bottom of the pistol grip. Try adjusting that.

[Vamp]

A good tip but it raises another question if before I have the pistol grip back on I were to push it in manually with a screw driver or a finger wouldn't that have the same effect for testing purposes and if so I tried it and it did not work if not the I will have to retry that.

[league 4]

Is there any chance you missed a broken tooth on a gear? I've done it before, it's an honest mistake...

[Vamp]

I just double checked for the sake of doing so and no i did not miss a broken tooth. this problem does have me royaly irritated though

[pseudoanimosity]

It's pretty easy to tighten the motor down with the grip still on, I would also check the pinion gear on the motor if you didn't look at that.

[Jester316]

Using anything other than the grip would yield innaccurate results due to it being different from how it's used normally. I'd check with the grip on.

Annother issue could be that the 11.1 tore out the slot in the pinion gear, causing the motor to spin the shaft without spinning the gears. I would reassemble the gearbox without the piston/spring assembly, and see if the gears actually turn. If they do, than it's something else. If not, than it could be the pinion gear rounding.

You said that it SOUNDS like the gears are turning, are you sure that they infact are turning?

[Vamp]

well thankyou guys for the help I cannot test anything else till I get a new wiring harness as a couple connectors broke and the wires were pretty tight as it was.

[Vamp]

Alright got my new wiring harness and got the gun up and running agian still has a high pitched whine to it but it isnt as bad and it shoots so problem essentially solved. Thank you everyone for throwing some suggestions my way

[pappyjump]

I wouldnt recommend using an 11.1 lipo in an echo 1 dude. (sorry if this is a necro)

[Jester316]

I wouldnt recommend using an 11.1 lipo in an echo 1 dude. (sorry if this is a necro)

Why? I use an 11.1 in my Dboys M4... I know people who use 11.1 in Cyma Ak's... please give reasoning as to why...

[LiberalPacifist]

I just say use it till it breaks. Then fix it. No reason I couldn't run an 11.1v in a mini LPEG, as long as I was ready to fix or replace it.

[Vamp]

The only reason most people are scared to run 11.1 lipo batteries is either that their mags won't feed fast enough to keep up with the speed causing blank firing between rounds or that they think it is harder on the gun. The battery voltage does nothing to the gun by itself, the difference is that because you are firing faster you hit a so many thousand round threshhold faster than with other battery types. If you were to take 2 identical guns, and i mean identical enough that the only way it would be possible is through alternate reality, and run both of them side by side you would run the same amount of rounds before they broke down. the 11.1 lipo would get thier faster because it fires more rounds per minute. That is the only difference between running an 11.1 lipo or a 9.6 nimah. It cannot pull the spring back with more force it cannot force the spring forward harder just make it cycle faster.

[Riddick]

Springs impact the forward and backward pressures. Stronger spring means harder pull and stronger forward pressures when the piston head hits the cylinder head after it releases.

[pseudoanimosity]

The only reason most people are scared to run 11.1 lipo batteries is either that their mags won't feed fast enough to keep up with the speed causing blank firing between rounds or that they think it is harder on the gun. The battery voltage does nothing to the gun by itself, the difference is that because you are firing faster you hit a so many thousand round threshhold faster than with other battery types. If you were to take 2 identical guns, and i mean identical enough that the only way it would be possible is through alternate reality, and run both of them side by side you would run the same amount of rounds before they broke down. the 11.1 lipo would get thier faster because it fires more rounds per minute. That is the only difference between running an 11.1 lipo or a 9.6 nimah. It cannot pull the spring back with more force it cannot force the spring forward harder just make it cycle faster.

I understand what you're trying to get at here, but your reasoning is incorrect. An 11.1 LiPo battery puts more electric energy into the system to make it move faster, which yes, does increase the rate of fire, but it is more strenuous on the gears because they have to exert more power (energy) in order to achieve this higher rate of fire.

Electric Power = Amps x Volts

If you increase the volts, and the amps remain constant (although i think they increase a little with LiPo's...), then there is more power flowing through your wiring, and motor which in turn puts more mechanical energy into your gearbox.

An easy way to think of this is: is it harder to sprint up a hill or walk up a hill? When you sprint, you put out more energy at once, and it's harder on your body, but when you walk you put out a smaller amount of energy over a longer period of time, which is easier on your body.

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Also, LiPo's tend to exaggerate all the little impurities inside your gearbox, such as incorrect shimming, or a bad motor. If I were you, I would make sure to get a new gear set if it's an E1, and have it shimmed before you tried to use a LiPo in order to avoid blowing your gears in the middle of a skirmish or OP.