TM Mp5 possible Jam/Other Issue

Hutch88 · November 22nd, 2007, 13:40

I just received my mp5 (bought it off of the aeg forum). I put a few bb's into the realcap mag that I received with it and attempted for fire some on the full auto setting. Immediately I hear a loud high pitched whine (scream like) that is constant. I let off the trigger and I'm pretty sure something internally is wrong with the gun.

I broke out a flashlight (as I did not receive the cleaning rod) and looked down the barrel and there does not appear to be any BB's inside the gun as they all fell out when I removed the clip.

Does this sound like a jam or something wrong with the gearing?

Styrak · November 22nd, 2007, 13:58

Sounds like maybe a gear problem (shimming) or a jam(spring and piston) and the motor can't turn the gears.

The Saint · November 22nd, 2007, 14:06

High-pitched whine? Are there any accompanying grinding and/or whirling noises?

airborne1 · November 22nd, 2007, 14:34

Last time mine whined like that the piston was broken.

Schwag · November 22nd, 2007, 14:45

Could be many things but that sounds like the motor is sitting too low or too high.
Try using a small allen key on the screw on the bottom of your handle.
Very common problem with mp5s. If it connects, the gun should start cycling right away. From there, adjust the screw up or down until it is firing at its quietest.
If it's not a motor adjustment problem then you have something stripped inside.
Who did you buy it from?

gvanzeggelaar · November 22nd, 2007, 23:33

Ya my guess is the motor hight. Also try to shim the bevel gear in such a way that it sits tighter against the pinion gear(the one on the motor). I had the same problem with my MP5

shifty51 · November 23rd, 2007, 02:40

complain to the guy you bought it off he sold you a broke gun?

Hutch88 · November 24th, 2007, 19:45

Quote:

Originally Posted by Schwag

Could be many things but that sounds like the motor is sitting too low or too high.
Try using a small allen key on the screw on the bottom of your handle.
Very common problem with mp5s. If it connects, the gun should start cycling right away. From there, adjust the screw up or down until it is firing at its quietest.
If it's not a motor adjustment problem then you have something stripped inside.
Who did you buy it from?

Thank you, that fixed the issue.

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November 22nd, 2007, 13:40	#1
Hutch88 Trader rating Join Date: Jun 2007	TM Mp5 possible Jam/Other Issue I just received my mp5 (bought it off of the aeg forum). I put a few bb's into the realcap mag that I received with it and attempted for fire some on the full auto setting. Immediately I hear a loud high pitched whine (scream like) that is constant. I let off the trigger and I'm pretty sure something internally is wrong with the gun. I broke out a flashlight (as I did not receive the cleaning rod) and looked down the barrel and there does not appear to be any BB's inside the gun as they all fell out when I removed the clip. Does this sound like a jam or something wrong with the gearing?

November 22nd, 2007, 13:58	#2
Styrak Trader rating Join Date: Jan 2007 Location: Saskatoon, SK	Sounds like maybe a gear problem (shimming) or a jam(spring and piston) and the motor can't turn the gears. __________________ Airsoft Sales and Repair/Upgrade Services

November 22nd, 2007, 14:06	#3
The Saint Trader rating Join Date: Jan 2005 Location: Quebec	High-pitched whine? Are there any accompanying grinding and/or whirling noises? __________________ "The Bird of Hermes is My Name, Eating My Wings to Make Me Tame."

November 22nd, 2007, 14:34	#4
airborne1 Trader rating Join Date: Aug 2007 Location: Calgary, Alberta	Last time mine whined like that the piston was broken.

November 22nd, 2007, 14:45	#5
Schwag Trader rating Join Date: Sep 2006 Location: A sick fascist corporatocracy.	Could be many things but that sounds like the motor is sitting too low or too high. Try using a small allen key on the screw on the bottom of your handle. Very common problem with mp5s. If it connects, the gun should start cycling right away. From there, adjust the screw up or down until it is firing at its quietest. If it's not a motor adjustment problem then you have something stripped inside. Who did you buy it from? __________________ (Former)Grand Poobah of T.W.A.T.

November 22nd, 2007, 23:33	#6
gvanzeggelaar Trader rating Join Date: Oct 2007	Ya my guess is the motor hight. Also try to shim the bevel gear in such a way that it sits tighter against the pinion gear(the one on the motor). I had the same problem with my MP5

November 23rd, 2007, 02:40	#7
shifty51 Trader rating Join Date: Jan 2007 Location: Mississauga, Ontario	complain to the guy you bought it off he sold you a broke gun? __________________

TM Mp5 possible Jam/Other Issue

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