Positive wire getting hot when shooting.

airsoftjunky · December 30th, 2014, 23:38

I'm having a look at one of my younger buddy's non working guns, and need some help here from the higher ups before I start digging too deep. The gun is a G&G m4. It is possible there's water damage? The gun was used in the rain a bit on the last game of the season, and started having troubles firing. He took it home at the end of the day, dried it out, (I don't know how thoroughly) and it was working again. However, it shortly started having hot wire issues in the battery compartment. (Just the Positive wire)
I looked and can't see any damages in the wire, and the motor etc does not get warm. Anyone have any clues what might be the problem?

lurkingknight · December 31st, 2014, 00:18

no such thing as water damage. Either it cycles or it doesn't. Water in the gun just shorts it so it would shoot all the time. But since it's a simple electric circuit, that's unlikely.

POS wire getting hot is from resistance, from the fuse, from the wiring, from extra inefficient connectors, from messed up shimming or motor height. If the motor is not getting hot and sounds fine, shimming and motor height is probably not an issue.

You can fire an AEG underwater if you really wanted to and electrically and mechanically it would work just fine until the action of pumping water slowed the piston so that the sector PMEs and destroys the piston. There's a number of videos on YT featuring exactly that.

POS wire can get warm on stock guns though, that's the nature of the shitty electrical system from factory.

Either he didn't notice or there's added resistance in the system somewhere. Read above.

airsoftjunky · January 2nd, 2015, 12:44

Well what I think we'll do is re wire it completely. The guy wants it wired to the rear for a full sized stock anyway, so maybe getting rid of the crappy wiring will fix the problem.

N_Force · January 4th, 2015, 14:06

My experience and my suggestion for using AEG under raining is, get a clear plastic bag to cover up body and battery compartment to minimize the electrical parts and wiring get wet and having short circuitry. That will prevent this kind of problems for sure.

If your AEG having warm or a bit hot wire, it should be normal. I believe mostly of the wire comes with original in each AEG, they all just enough to handle the currency being used. And when you keep on shooting in full auto, those wire will become warm and even hot, as long as it not burning hand would be fine. But if having burning smell, that is the worst, you should stop shooting and have it check and service. Based on the case you mentioned, seems like some area got wet and mold grew in wiring contact area, when shooting it with currency went through, could have short circuit effect and having it hot on this single wire. That's is my simple diagnostic.

Sequential · January 5th, 2015, 12:17

Yup a warm positive wire is normal. It all depends on the motor and battery setup also.

pestobanana · January 5th, 2015, 13:36

Hot wires are not normal unless shitty is your normal.

Use a wattmeter to test the amp draw.

Sequential · January 5th, 2015, 21:16

No one said hot was normal?

ThunderCactus · January 5th, 2015, 21:33

If you're not melting through the insulation, it's perfectly normal for thing 18ga wires to get so hot you can't touch them. Especially if you're running a lipo on a motor that draws a lot of current.

airsoftjunky · January 6th, 2015, 03:22

Conflict of interest here!

I can personally say I don't think it's normal. This isn't my gun, but none of my 12-ish aeg's have ever had a hot wire unless something was wrong....

RainyEyes · January 6th, 2015, 06:15

Check the fuse if there is one. It could give you clues if something is really wrong or if this is normal.

ThunderCactus · January 6th, 2015, 12:56

I've had just about every CA and marui and old G&G get super hot in the wires when using large NiMH batteries and 7.4 lipo
Resistance causes heat, and those shitty chinese wires have a lot of it.

airsoftjunky · January 7th, 2015, 07:30

Quote:

Originally Posted by RainyEyes

Check the fuse if there is one. It could give you clues if something is really wrong or if this is normal.

Fuse has been removed and bypassed.

Styrak · January 7th, 2015, 16:38

IT'S IN MY HANDS NOW! MUAHAHAHAHA!

I'll see what's wrong with it. Will probably just replace all the wiring if it's not long enough or has damage since it's being rewired from front to back.

airsoftjunky · January 8th, 2015, 06:59

Awesome! Let the pros handle it. There you go people.

lurkingknight · January 8th, 2015, 10:44

cause you know, the other guys with the pro tags and the one who can't get one but still builds awesome guns for people are all wrong.

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December 30th, 2014, 23:38	#1
airsoftjunky a.k.a. evaboe Trader rating Join Date: Aug 2008 Location: saskatchewan	Positive wire getting hot when shooting. I'm having a look at one of my younger buddy's non working guns, and need some help here from the higher ups before I start digging too deep. The gun is a G&G m4. It is possible there's water damage? The gun was used in the rain a bit on the last game of the season, and started having troubles firing. He took it home at the end of the day, dried it out, (I don't know how thoroughly) and it was working again. However, it shortly started having hot wire issues in the battery compartment. (Just the Positive wire) I looked and can't see any damages in the wire, and the motor etc does not get warm. Anyone have any clues what might be the problem?

December 31st, 2014, 00:18	#2
lurkingknight "bb bukakke" KING! Trader rating Join Date: Jul 2011 Location: Ottawa	no such thing as water damage. Either it cycles or it doesn't. Water in the gun just shorts it so it would shoot all the time. But since it's a simple electric circuit, that's unlikely. POS wire getting hot is from resistance, from the fuse, from the wiring, from extra inefficient connectors, from messed up shimming or motor height. If the motor is not getting hot and sounds fine, shimming and motor height is probably not an issue. You can fire an AEG underwater if you really wanted to and electrically and mechanically it would work just fine until the action of pumping water slowed the piston so that the sector PMEs and destroys the piston. There's a number of videos on YT featuring exactly that. POS wire can get warm on stock guns though, that's the nature of the shitty electrical system from factory. Either he didn't notice or there's added resistance in the system somewhere. Read above. __________________ I futz with V2s, V3s and V6s. I could be wrong... but probably, most likely not, as far as I know.

January 4th, 2015, 14:06	#4
N_Force Trader rating Join Date: Oct 2006 Location: Toronto, Ontario	My experience and my suggestion for using AEG under raining is, get a clear plastic bag to cover up body and battery compartment to minimize the electrical parts and wiring get wet and having short circuitry. That will prevent this kind of problems for sure. If your AEG having warm or a bit hot wire, it should be normal. I believe mostly of the wire comes with original in each AEG, they all just enough to handle the currency being used. And when you keep on shooting in full auto, those wire will become warm and even hot, as long as it not burning hand would be fine. But if having burning smell, that is the worst, you should stop shooting and have it check and service. Based on the case you mentioned, seems like some area got wet and mold grew in wiring contact area, when shooting it with currency went through, could have short circuit effect and having it hot on this single wire. That's is my simple diagnostic. __________________ aka Uncle Last edited by N_Force; January 5th, 2015 at 16:59.. Reason: highlight words for better understanding for some reader

January 2nd, 2015, 12:44	#3
airsoftjunky a.k.a. evaboe Trader rating Join Date: Aug 2008 Location: saskatchewan	Well what I think we'll do is re wire it completely. The guy wants it wired to the rear for a full sized stock anyway, so maybe getting rid of the crappy wiring will fix the problem.

January 5th, 2015, 12:17	#5
Sequential Trader rating Join Date: Sep 2007 Location: HKG.YYZ.NRT	Yup a warm positive wire is normal. It all depends on the motor and battery setup also. __________________

January 5th, 2015, 13:36	#6
pestobanana Squid Porn Superstar, I love the tentacles! Trader rating Join Date: Nov 2008 Location: Richmond Hill and Waterloo, Ontario	Hot wires are not normal unless shitty is your normal. Use a wattmeter to test the amp draw.

January 5th, 2015, 21:16	#7
Sequential Trader rating Join Date: Sep 2007 Location: HKG.YYZ.NRT	No one said hot was normal? __________________

January 5th, 2015, 21:33	#8
ThunderCactus Not Eye Safe, Pretty Boy Maximus on the field take his picture! Trader rating Join Date: Feb 2007	If you're not melting through the insulation, it's perfectly normal for thing 18ga wires to get so hot you can't touch them. Especially if you're running a lipo on a motor that draws a lot of current.

January 6th, 2015, 03:22	#9
airsoftjunky a.k.a. evaboe Trader rating Join Date: Aug 2008 Location: saskatchewan	Conflict of interest here! I can personally say I don't think it's normal. This isn't my gun, but none of my 12-ish aeg's have ever had a hot wire unless something was wrong....

January 6th, 2015, 06:15	#10
RainyEyes Trader rating Join Date: Sep 2013 Location: Scarbororororough	Check the fuse if there is one. It could give you clues if something is really wrong or if this is normal.

January 6th, 2015, 12:56	#11
ThunderCactus Not Eye Safe, Pretty Boy Maximus on the field take his picture! Trader rating Join Date: Feb 2007	I've had just about every CA and marui and old G&G get super hot in the wires when using large NiMH batteries and 7.4 lipo Resistance causes heat, and those shitty chinese wires have a lot of it.

January 7th, 2015, 16:38	#13
Styrak Trader rating Join Date: Jan 2007 Location: Saskatoon, SK	IT'S IN MY HANDS NOW! MUAHAHAHAHA! I'll see what's wrong with it. Will probably just replace all the wiring if it's not long enough or has damage since it's being rewired from front to back. __________________ Airsoft Sales and Repair/Upgrade Services

January 8th, 2015, 06:59	#14
airsoftjunky a.k.a. evaboe Trader rating Join Date: Aug 2008 Location: saskatchewan	Awesome! Let the pros handle it. There you go people.

January 8th, 2015, 10:44	#15
lurkingknight "bb bukakke" KING! Trader rating Join Date: Jul 2011 Location: Ottawa	cause you know, the other guys with the pro tags and the one who can't get one but still builds awesome guns for people are all wrong. __________________ I futz with V2s, V3s and V6s. I could be wrong... but probably, most likely not, as far as I know.

Positive wire getting hot when shooting.

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