Jammed mechbox
 

Sometime ago I overcharged a battery in my BOYI m4 ris (full metal). In consequence my mechbox stopped working. It's not actually making any noise. motor IS running when it's not in the mechbox but it seems to have not enough power to move the gears :-/

any ideas what's wrong? maybe wiring went bye bye? :s

and yea... I post here because our polish airsoft forums are not really helpful

Maybe your overcharged battery is pooched?

Why do you assume it's anything else than your battery in the first place?

I've had something similar happen to me twice. First time it was a seized mechbox due to overshimming, second time it was a fried motor. It would spin when out of the gun because there was no resistance but as soon as you added a load to it nothing happened, motor just sat there.

oh crap LUTNIT that's a really evil scenario with that fried motor there :-/ I'll be borrowing my friend's battery tomorrow and I'll see where the problem is :s

not the motor
 

dude it's not the motor that's wacked but it has something to do with your gears or piston. try to check the mechbox.