emag will not fire

[Crap_Boy_Smith]

Ok - I have not played in 2 years, and today tried to gas up the emag to see if it will work. Of course it does not fire (oiled every o-ring up etc). No leaks.

I can trip the solenoid mechanically (so the gun cycles), and when I press the trigger I can feel it try to work, it just doesnt seem to have the power unless the gun is not gassed up.

Have tried the following:

charged battery
replaced on/off pin with my other one.
replaced quad o-ring
replaced on/off o-ring

The solenoid can trip when not gassed up (using my finger to simulate gas pressure), but will not trip when the gun is gassed up. I turned down the velocity until the gun would not cycle mechanically, still would not fire.

The gun worked perfectly the last time I played, so it must be an age thing I'm guessing, or maybe a different o-ring to replace. I also changed my main spring to the shortest one thinking that the resistance was too high, but if it fires mechanically I dont think this could be the problem??

Any help would be appreciated. Should I try my other x-valve in the gun to see if that helps (have an RT pro, but that hasnt been gassed up in just as long...)

[secretweaponevan]

Ok - I have not played in 2 years, and today tried to gas up the emag to see if it will work. Of course it does not fire (oiled every o-ring up etc). No leaks.

I can trip the solenoid mechanically (so the gun cycles), and when I press the trigger I can feel it try to work, it just doesnt seem to have the power unless the gun is not gassed up.

Have tried the following:

charged battery
replaced on/off pin with my other one.
replaced quad o-ring
replaced on/off o-ring

The solenoid can trip when not gassed up (using my finger to simulate gas pressure), but will not trip when the gun is gassed up. I turned down the velocity until the gun would not cycle mechanically, still would not fire.

The gun worked perfectly the last time I played, so it must be an age thing I'm guessing, or maybe a different o-ring to replace. I also changed my main spring to the shortest one thinking that the resistance was too high, but if it fires mechanically I dont think this could be the problem??

Any help would be appreciated. Should I try my other x-valve in the gun to see if that helps (have an RT pro, but that hasnt been gassed up in just as long...)

E-mags use the input pressure to determine the force required to push the on/off pin up. If you have an adjustable reg on your HPA tank, turn it down to see if that helps since the input pressure determines the amount of force needed to trip the sear and the battery (especially if it is ni-cad) might not have enough juice (amperage or voltage, I don't know) to activate the solenoid with enough force to counteract the pressure (PSI) being exerted on the on/off pin. If your HPA tank's reg is creeping, that could be the cause too, I think.

I don't own an emag, I am just hypothesizing, and I'm drunk, so go figure. :)

[Crap_Boy_Smith]

I usually have the tank at ~850 psi, but just turned it down to as low as 600 psi - no change - same issue.

[Tunaman]

Odds are that the battery is shot...after sitting for 2 years...

[Crap_Boy_Smith]

any way of testing this without buying a new battery? I see some newer ones are availabel in the dealers forum (or at least were...)

[MournBlade]

Using a multimeter set to 20Vdc test the voltage across the battery after a full charge. It should read 16.8V +- 1V if there is a > -2V difference there is most likely a bad cell and the battery pack needs replaced. If thats Ok then test the voltage under load. ie. with the trigger pulled. If the drop in voltage is greater than 4v-5V the pack is too weak and needs replaced.

[Tunaman]

Using a multimeter set to 20Vdc test the voltage across the battery after a full charge. It should read 16.8V +- 1V if there is a > -2V difference there is most likely a bad cell and the battery pack needs replaced. If thats Ok then test the voltage under load. ie. with the trigger pulled. If the drop in voltage is greater than 4v-5V the pack is too weak and needs replaced.

It should read almost 20 volts after a full charge.

[Crap_Boy_Smith]

will check and get back to you guys. Thanks for all the help. Gassed up my RT as well today. Added a little oil and fired without a hitch. Not even a little lvl 10 leak after over 2 years. Awesome.

BYW how do you test the battery with it attached to the gun? Where to the multimeter leads go? (This may be a dumb question

[Ruler_Mark]

you cant, you take the batt off the gun, the leads are on the top the 2 clips but be carful not to short it.

[Crap_Boy_Smith]

Ok tested the battery today (not under load yet)

It gives 19 V after full charge. This seems ok to me...any other ideas or is it still the battery?

I will bring my multimeter home and test the battery more fully later if there are other tests you want me to run (at work now). Could it be the on/off pin or quad o-ring causing this? I wouldnt think so since it cycles mechanically....

[Ruler_Mark]

since it is cycling manually it has to-do with the eletronics.

Your sear may have wiggled its way out of spec, was it moved around alot or sat in a closet?

Is this loaded with xmod software? you might want to try to up the Dwell.

[Crap_Boy_Smith]

it was stored in the case in a closet. Might have been moved to get at things behind it, but not really very much.

The solenoid wiggles a little (that is how I know it is trying to fire), but doesnt seem to move much. The sear? Cant seem to think that moves much at all - should I unscrew it from the rail and see what I can see? (Never thought to take the rail off... took off the body, but not the rail...

Remember I can get it to fire when I take the valve off and push down the sear with my finger to simulate gase pressure (if that even matters)

No xmod software. I have 3.? (AGD put it on -cant remember the number still at work)

[TeamJackal37]

Does it do anything when on "M" mode?
Is the Safety button off?
I seen it happened when the Safety switch is on.

[Crap_Boy_Smith]

I have a fireblade, so the pin is not long enough for mech mode, however I can trip it with a screw driver and it fires.

The safety is on, I'll check closer tonight and see if it is impacting anything when I take the rail off

[Ruler_Mark]

can you get your hands on a caliper?