Well I'm extremely new at this. I was trying to learn how everything works in a cheap gun before I spend my $600 on the gun I wanted. In the process I fubar everything. To make things clear, I never even got as far as opening the gearbox. This first picture shows how far I got.
Now all I did is disassemble and when I got this far I noticed I didn't have the proper sized screw driver so I put everything backl together. When I first test fired the gun a loud scretching sound appeared for the first time. So I checked everything out. The motor works fine - I've tested it in another AEG after this issue. So I think its the gearbox. Basically when I initially put the motor back in the fing gun didn't say which outlet was positive or negative. Neither did the instruction manual. Go figure *cough*. After hearing the noise I switched the connectors around and it sounds better but its almost as if the gears are turning and nothing is happening. Hence the pistol *I beleive * to be the root issue. After checking the piston I noticed its stuck in the forward position. Now again I never opened the gearbox so I'm curious as to how this happened.
http://img529.imageshack.us/my.php?image=img00158.jpg
Second picture is where I think the problem resides. The BB feeding area - looks like the piston head is stuck in the forward position. You can't see it to weel but I've confirmed it.
http://img529.imageshack.us/my.php?image=img00159.jpg