Troubleshooting new build: Opinion requested!

[pestobanana]

With the motor outside of the gun, battery connected,
-Pull the trigger, hold it down and let the motor spin
-Spin the sector gear to engage the cutoff lever
-Release the trigger, see if the trigger carriage slides back down
-Repeat, if this works your trigger mechanism is fine

Have you tested this without your cylinder assembly yet?

[Flarebrass]

@Pestobanana: That is a great idea. I will try that when I work on it next! I am unfortunately still at work and haven't had time to get back at it yet, and I have a team meeting tonight so I probably wont get much time on it, but I will be back at it tomorrow night for sure. Thanks again for all your help and will let you know my results.

Cheers,

Flarebrass

[Flarebrass]

Update: Ok so I made a video of what was happening (and I was working on it last night without the cylinder or piston in), but it is very blurry and frankly, I am having a hell of a time trying to get it off of my phone.

However with that said, from what I saw, I will try to explain; The trigger is pushing the sled as per normal, but there is a very loud and distinct click noise from it every time is passes roughly the 60-70% mark on the pull. Note that I also tried 3 different sleds out (1 modify, 1 VFC and 1 SHS) to see if they made a difference, which they did not. The gears are spinning freely with no issues, but there are 3 issues that seem to arise.

1) the trigger locks up (common problem from what I have read for V2 gearboxes, so I am not sure this is a main problem). I am assuming the gears are just stopping in a bad position on the cutoff lever (which is when you swap to full auto, clear it then swap back).

2) The trigger sled sometimes locks forward (but it still wont fire or connect the circuit). For example, the semi works (albeit the clicking is a very rough pull on the trigger), but after quickening the pace between shots, the sled will sit forward and the cutoff lever will not engage it and the sled spring is not pulling it back. It must be getting caught on something which seems very odd. I double checked the cutoff lever to ensure that it wasn't damaged at all, but it seems perfectly fine.

3) even on semi (I used a small screw driver to hold the selector plate in place so it did not move to safe or full auto), it sometimes fires full auto and the cutoff lever wont engage. The sled either is returned on the trigger release (and the connection is broken), or it gets stuck and I had to use a screw driver to release the sled.

Any ideas? It really sounds like a sled/cutoff lever issue, but as I have never come across an issue like this before as it does not seem like a normal one, my ideas to fix are slowly running out.

Thanks

Flarebrass

[pestobanana]

Take a photo of how it is getting stuck.

If it is a friction issue get it stuck a few more times, you will see marks where it is getting caught and you can sand there. I've had this issue with a shs trigger assembly in one of my vfcs before.

[Flarebrass]

**UPDATE**

So, after feeling like a newb, I realized that sometimes going back to the basics and looking for the simple solution is the way to go, instead of looking for some big bad answer to a problem that doesn't even exist. The issue has been fixed and is now shooting and sounding like a dream (left the 14:09's in there as I didn't wanna take the chance of messing with the 10:44's and having to troubleshoot it again!)! For anyone looking up a troubleshooting thread; There were two issues bumping into one to make it seem like there was something worse going on with the GB. First; the selector plate -> cutoff lever spring was not strong enough to push the cutoff lever back down far enough, which in turn, was not engaging the trigger sled, creating full auto. Solution: elongate the spring! Second; the negative contact wire for the motor was loose, and after multiple shots would slowly fall off the motor post and break connectivity and making it unable to fire. Solution: Use pliers to to make the negative connector wire clip smaller!

Thanks everyone for all your help, it was GREATLY appreciated! I hope I can return the favour to someone else in need like myself in the future! If I need anything else, Ill post up here!

Cheers,

Flarebass