E-mag Firing Problem

[nate2k191]

thanks, ken at KPCS customs.

[nate2k191]

Scott, what happens if the plunger is too long? just curious.

[Onryou]

I'm having pretty much the same problem. The first time i aired my new emag up it fired the very first shot fine, and now nothing. I can hear the solenoid and if I take the grip off, I can see it pulling, but only if i have it tilted. Its almost like my eMag valve just isn't returning the on/off far enough. It never pulls the sear up from the solenoid, it just sits there inside it with nowhere for it to pull down to.

My valve has LX but not ULT, do I need to install a ULT to make it work or is there something else I need to look into?

[nate2k191]

can you fire it with the battery pin in on mechanical mode? If its brand new you might just need to oil your valve up, back the velocity out really far, then gas it up and increase the velocity until the gun fires on its own.

you should not use a ULT in your e-mag, it won't help, and its not made for use on an e-mag

[Onryou]

I oiled the valve up, turned the air on and it pulled the plunger up from the solenoid. I go to pull the trigger in Emode and it doesn't seem to be pulling hard enough. I hear it fire and see the plunger kind of shake, but nothing happens with the valve. In mech mode, I pull the trugger as far back as it will go and it still won't fire. It seems to meet alot more resistance then normal.

If i put the valve on my benchmark frame, it will fire with no problem.

[nate2k191]

are you using a quad o-ring and the right e-mag on/off pin? the e-mag sear might be short also.

[BigEvil]

I oiled the valve up, turned the air on and it pulled the plunger up from the solenoid. I go to pull the trigger in Emode and it doesn't seem to be pulling hard enough. I hear it fire and see the plunger kind of shake, but nothing happens with the valve. In mech mode, I pull the trugger as far back as it will go and it still won't fire. It seems to meet alot more resistance then normal.

If i put the valve on my benchmark frame, it will fire with no problem.

It sounds as if the plunger length is too short..... if you want me to look at if for you PM me.

[FA22RaptorF22]

Actually....if im not mistaken, i can see from the picture that the plunger is too short. Just keep a pair of calipers handy...they will be your best friend. Also, remember to put a drop of locktite (blue) on the rod to keep it from spinning.

-edit
nvm...but ya, nate the plunger was obviously too short...its a very common problem.

[athomas]

The solenoids develop most of their pull when the plunger is farthest down in the coil. If the plunger rod is too short, the plunger sticks out too far from the solenoid and it doesn't develop enough power to pull the sear assembly. If it is too long, it doesn't pull it far enough to trip the sear. Its critical to keep it in the proper operating range. Make sure to use locktite on it once it is properly adjusted. You don't want it changing length as you use it.