Emag won't fire in Emode

[p8ntbal4me]

I had a problem almost like what your saying Mec.

One gun it was the solenoid.

On the other,.. it was the magnet in the trigger. It was coated with a slight amount of rust and after cleaning it,.. I rubbed the goldish coating right off.

I bought a new magnet from AGD and it worked instantly!

Did you check the polarity of the solenoid to make sure it was correct??

~ P8nt

[secretweaponevan]

not trying start an arguement or anything, but how can there get wear marks get on the top of the sear? the plunger is reset back by the on off and that wont reset till the bolt moves back. Just trying to understand that fully.

Probably because the bolt will rub against the top of the sear while the bolt returns if the dwell is set too short.

[Mechanic79]

OK, I've never been witness to this issue before.

I tried moving the solenoid by the C clip while firing the gun.
When I pull the trigger back nothing happens, but when I release the trigger the solenoid will snap down.

Is this thing wired backwards? It sorta looks suspicious the soldered leads on the board from the solenoid.

(again just for the record, this is a friends emag that I'm trying to help fix)

I can post pics of the frame tomorrow.

[p8ntbal4me]

OK, I've never been witness to this issue before.

I tried moving the solenoid by the C clip while firing the gun.
When I pull the trigger back nothing happens, but when I release the trigger the solenoid will snap down.

Is this thing wired backwards? It sorta looks suspicious the soldered leads on the board from the solenoid.

(again just for the record, this is a friends emag that I'm trying to help fix)

I can post pics of the frame tomorrow.

Question #1: Are you using XMOD?

If you are,.. check your mode of fire. Sounds like you have it in "RELS" mode.

The only other thing I can think of is your HES sensor wires are not wired correctly. If thats the case,... you need to flip them.

~ P8nt

[Ruler_Mark]

Probably because the bolt will rub against the top of the sear while the bolt returns if the dwell is set too short.

What would be forceing the sear back? there is no return on the solenoid.

[p8ntbal4me]

What would be forceing the sear back? there is no return on the solenoid.

The internal gas behind the on/off pin.

~ P8nt

[athomas]

agreed, what i meant was that around 7-9ms it would shoot but thats not where i would set it. I would set it 12-14 on average.

not trying start an arguement or anything, but how can there get wear marks get on the top of the sear? the plunger is reset back by the on off and that wont reset till the bolt moves back. Just trying to understand that fully.

There is always pressure exerted on the on-off pin pushing the sear assembly back into the reset position. The only thing holding the sear away from the bottom of the bolt during the firing operation is the actuated solenoid. As soon as the power is removed from the solenoid, the on-off pin will push the sear forward. If the bolt is not back all the way, the sear will hit the bottom of the bolt lip and add additional friction to its return. This wears the sear and bolt and could cause bolt sticking issues. This isn't an issue on mechanical mags because the finger action is not fast enough to release the trigger before the bolt has cycled.

[Ruler_Mark]

There is always pressure exerted on the on-off pin pushing the sear assembly back into the reset position. The only thing holding the sear away from the bottom of the bolt during the firing operation is the actuated solenoid. As soon as the power is removed from the solenoid, the on-off pin will push the sear forward. If the bolt is not back all the way, the sear will hit the bottom of the bolt lip and add additional friction to its return. This wears the sear and bolt and could cause bolt sticking issues. This isn't an issue on mechanical mags because the finger action is not fast enough to release the trigger before the bolt has cycled.

thanks.