twogowan

Okay so I tested the motor on the other aeg wiring and it span fine. Had a look at the mosfets manual and the status led had no indication of an electrical issue. So I think I'm looking at a case of me being a silly billy at some point along the line. I'll try rebuilding it again later and see if anything happens. thanks for all the inputs on this

Thanks for the replies guys, I have been working on the assumption that because I neglected to screw in the small screw that allows you to adjust the motor depth, it ended up not touching the gears and span inside, based on the whirring noise I heard on trigger pull. I can't confirm anything of course. I don't believe the polarity was reversed as there is a positive marker on the side of one of the motor connections along with a red marking which I attached the red wire to and the black on the other side. After tomorrow's game I'll pull the motor out of my other AEG and test the MP5's motor on those wires.

I can see now the Perun mosfet inside has a fuse built-in (I'm new to exploring the innards obviously, I'm at that point I wish I'd just gotten a professional instead of trying to do it after watching a few youtube vids). I'm reluctant to pull the motor out of my backup AEG right now incase I bugger that up too and have nothing to play with this week so I'll try that paperclip test, if I can find one that is. Either way the gun will be down for the count till payday I'm thinking.

Thanks for your replies guys. I'll post a couple images of the innards before I test the motor, that'll probably be better than me trying to explain whats in there. I attached em to the post. Do you mean you pulled the trigger a few times and it free span then it didn't move the next time you tried the trigger or you kept pulling the trigger and the motor just locked up? The devil's in the details... ______ To be as specific as possible, I pulled the trigger once for .2 of a second and heard a fast whirring which I assume was the motor spinning. I repeated the trigger pull for the same result. I repeated the trigger pull a third time and nothing happened.

Hi I'll try to keep it short, Pre-owned MP5, took apart to install new spring and check what exactly the previous owner hsd induce. Upon rebuild, I did not seat the motor correctly and it free-span a couple of times before stopping. Following this it no longer moves on trigger pull. Tried different battery. Looking online people with similar problems have been told that fuse burnout is the probable cause, however upon checking the wiring there does not appear to be a fuse installed. With there being no fuse, am I likely looking at a burned out motor? Thanks for your time.