ICS MP5 does not shoot

Rob · August 3rd, 2005, 20:41

I have a new mp5, and while shooting ( couple of single shot followed by a 1 sec burst) it died on me. i have recently replaced two fuses, ohter that that there are no upgrades to the gun and the gearbox has not been opened. When i pull the trigger i see the fuse bending (which means there's juice goin' through it right?) but no moter sound, no gears moving or whatever normal sounds that come out of a gearbox. I suspect a damaged tappet plate as someone has mentioned an incident like this happening to him before. Any other theories you guys wanna contribute

p.s. it may not matter but after the gun stopped working, i noticed the grip (where the moter is) was slightly warm. not unbearable to hold and it might be normal but just in case its a factor...

Kane · August 3rd, 2005, 20:50

Well, my motor is NEVER warm normally, so that may be your problem right there. Yank it out and throw some power across it... see if it's working properly. The second thing is your battery... have you checked that out?

Rob · August 3rd, 2005, 20:52

you mean if the battery is dead, or if it's messed up, or both

note to self, invest in multimeter

Mantelope · August 3rd, 2005, 21:10

For the love of christ, stop pulling the goddamn trigger. If things are getting warm, it means something's siezed and your motor and battery are probably on fire. Something is VERY wrong, and you should take it to a gun doctor.

Rob · August 4th, 2005, 11:11

on a semi related note- does anyone know at what point does a large battery does not have enought power to run an aeg? i estimate the battery(8.4v 2400mAh) i was using to be %40 charged

Mantelope · August 4th, 2005, 12:26

How do you estimate 40%? Did your charger say it charged 1000mAh?

A 2400mAh 8.4V should be able to power any stock gun for thousands of rounds.

Blackthorne · August 4th, 2005, 12:52

I have the same gun.

My heat sink does not even get warm, let alone the handle, and I work it pretty hard on full auto on a regular basis.

This doesn't sound like a battery issue either. It sounds like jam.

If the motor is jammed, and you apply power, the only thing you get is heat. ESPECIALLY if you don't even hear a hum when you pull the trigger. That motor is stuck and has turned into a heater. Bad juju...

Tear it down or take it to the hospital....

Rob · August 4th, 2005, 21:05

i estimated the charge by time (discharged the battery using TM discharger for about 4-5 hrs, last full discharge took 8ish hrs)

I disasembled the gun to grearbox and body and noticed when i took off the motor (via heatsink) i heard the piston snap forward. could that have been the problem? the psiton getting stuck during full auto fire?

Blackthorne · August 4th, 2005, 21:34

But a jammed piston will usually strip your gears.

If that is the case then you got lucky....

Does the motor run out of the gun?

Kane · August 4th, 2005, 22:47

That's what I meant... Take the motor out and throw it acoss power. If it goes fine, then most likely your box is seized up. If it doesn't run, then your motor is fucked.

Rob · August 5th, 2005, 18:07

update- the gun is working fine now, i hope. charged up the battery and let a couple of rounds fly, no noticable problems. I did not take apart the gearbox and inspect the gears so i do not know if there is any damage inside there (maybe in the future i will inspect it more thoughly)

thanks for the advice guys

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August 3rd, 2005, 20:41	#1
Rob Trader rating Join Date: Dec 2002 Location: Vancouver, BC	ICS MP5 does not shoot I have a new mp5, and while shooting ( couple of single shot followed by a 1 sec burst) it died on me. i have recently replaced two fuses, ohter that that there are no upgrades to the gun and the gearbox has not been opened. When i pull the trigger i see the fuse bending (which means there's juice goin' through it right?) but no moter sound, no gears moving or whatever normal sounds that come out of a gearbox. I suspect a damaged tappet plate as someone has mentioned an incident like this happening to him before. Any other theories you guys wanna contribute p.s. it may not matter but after the gun stopped working, i noticed the grip (where the moter is) was slightly warm. not unbearable to hold and it might be normal but just in case its a factor...

August 3rd, 2005, 20:50	#2
Kane Trader rating Join Date: May 2002 Location: Salmon Arm, BC	Well, my motor is NEVER warm normally, so that may be your problem right there. Yank it out and throw some power across it... see if it's working properly. The second thing is your battery... have you checked that out? __________________ “You hear the far-off crack of a rifle, your fate finally registering in your subconscious far too late as the white hot bullet penetrates your skull. Another round slams into the chamber even as your lifeless body falls to the ground…”---Unknown sniper “Invisible souls leave .308 holes.”----USMC Recon Sniper

August 3rd, 2005, 21:10	#4
Mantelope Scotty aka harleyb Trader rating Join Date: Mar 2004 Location: Toronto, Ontario	For the love of christ, stop pulling the goddamn trigger. If things are getting warm, it means something's siezed and your motor and battery are probably on fire. Something is VERY wrong, and you should take it to a gun doctor. __________________

August 3rd, 2005, 20:52	#3
Rob Trader rating Join Date: Dec 2002 Location: Vancouver, BC	you mean if the battery is dead, or if it's messed up, or both note to self, invest in multimeter

August 4th, 2005, 11:11	#5
Rob Trader rating Join Date: Dec 2002 Location: Vancouver, BC	on a semi related note- does anyone know at what point does a large battery does not have enought power to run an aeg? i estimate the battery(8.4v 2400mAh) i was using to be %40 charged

August 4th, 2005, 12:26	#6
Mantelope Scotty aka harleyb Trader rating Join Date: Mar 2004 Location: Toronto, Ontario	How do you estimate 40%? Did your charger say it charged 1000mAh? A 2400mAh 8.4V should be able to power any stock gun for thousands of rounds. __________________

August 4th, 2005, 12:52	#7
Blackthorne A Total Bastard Trader rating Join Date: Jun 2005 Location: Consecon, Ontario	Not Warm I have the same gun. My heat sink does not even get warm, let alone the handle, and I work it pretty hard on full auto on a regular basis. This doesn't sound like a battery issue either. It sounds like jam. If the motor is jammed, and you apply power, the only thing you get is heat. ESPECIALLY if you don't even hear a hum when you pull the trigger. That motor is stuck and has turned into a heater. Bad juju... Tear it down or take it to the hospital.... __________________ VINCITE OMNIMODO

August 4th, 2005, 21:05	#8
Rob Trader rating Join Date: Dec 2002 Location: Vancouver, BC	i estimated the charge by time (discharged the battery using TM discharger for about 4-5 hrs, last full discharge took 8ish hrs) I disasembled the gun to grearbox and body and noticed when i took off the motor (via heatsink) i heard the piston snap forward. could that have been the problem? the psiton getting stuck during full auto fire?

August 4th, 2005, 21:34	#9
Blackthorne A Total Bastard Trader rating Join Date: Jun 2005 Location: Consecon, Ontario	Could Be But a jammed piston will usually strip your gears. If that is the case then you got lucky.... Does the motor run out of the gun? __________________ VINCITE OMNIMODO

August 4th, 2005, 22:47	#10
Kane Trader rating Join Date: May 2002 Location: Salmon Arm, BC	That's what I meant... Take the motor out and throw it acoss power. If it goes fine, then most likely your box is seized up. If it doesn't run, then your motor is fucked. __________________ “You hear the far-off crack of a rifle, your fate finally registering in your subconscious far too late as the white hot bullet penetrates your skull. Another round slams into the chamber even as your lifeless body falls to the ground…”---Unknown sniper “Invisible souls leave .308 holes.”----USMC Recon Sniper

August 5th, 2005, 18:07	#11
Rob Trader rating Join Date: Dec 2002 Location: Vancouver, BC	update- the gun is working fine now, i hope. charged up the battery and let a couple of rounds fly, no noticable problems. I did not take apart the gearbox and inspect the gears so i do not know if there is any damage inside there (maybe in the future i will inspect it more thoughly) thanks for the advice guys

ICS MP5 does not shoot

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