E-Mag timing

[tooltime]

I have one mag and an e-mag, the other day it wouldn't run on the E-mag during runup. I thought it was a fouled plug or two, but they were clean. I decided to reset the timing and that fixed the problem. Anybody had this happen, and why did it happen, it's run fine for a 100 hours

Tim

[Steve Sampson]

No mine have always run perfectly.

Can I ask though, have they been back for the SB?

I gather before one of the software changes, they were vulnerable to that, but if you have sent them back for the SB they will have had the software upgraded.

[frankh]

But it was before the latest upgrades

[videobobk]

If your E-mag is a year old (maybe less) and hasn't been back to the factory, send it in! Your only cost is shipping and the peace of mind is worth it. I think mine has been in three times in the last three years. They believe all the bugs have been worked out now. Mine never jumped time, but a number did. Call the company if you are in doubt. They have very quick turn around so you won't be down long.

Welcome to the VAF forum!

Bob Kelly

[tooltime]

Thanks for the welcome. Yes it has been back to the factory for an upgrade. I emailed Brad but he hasn't got back to me. I guess he's busy at Sun&Fun. We'll see.

Tim

[frankh]

You didn't loose power to the Emag?

Are you certain you have a good 12V supply and a good ground (plus P lead ground)

A lto of builders have had trouble wiring those connectors properly and if you have an intermittent connection that would do it.

Frank

[N941WR]

Lots of reasons it might have lost its timing mark. I see you sent it back for the an upgrade, when did you do this and what version are you running. Also, did they do the latest magnet upgrade as well?

The next issue is your wiring, how did you wire it? Per E-MAG's suggestion I hope.

After that, I have to ask if the E-mag slipped? Did you mark it after installing it so see if it rotated, even a little?

[tooltime]

The upgrade was for 1 or 2 set screws I think they said, I guess that could make it loose timing. The mag has not slipped and I wired it as per instructions
All the connections are good including the ground

[Mitch757]

Hi Tim,

I had the same "dead P-Mag on runup" some time back. I shut down and later restarted and the P-Mag worked fine. Intermittent problems scare me so I called Brad at Emag. He knew immediately the problem: A voltage drop during starter engagement to a certain level would cause the E/P mag to fault and not operate. I sent it in and the firmware was updated with no further problems. Perhaps the retiming in this case was just coincidental to the actual problem.

Mitch Garner
RV-4 flying

[lostpilot28]

I have the latest P-Mag update, and just sent an e-mail to Emagair yesterday about one of the PMags not being "on" after startup. It happened to me yesterday at run-up prior to flight. I was doing my mag check, and right when I killed the Right Mag, the engine started to die. I re-engaged the left mag to keep the engine running, then I removed power from the left Mag. The engine continued to run smoothly.

So, I shut down the engine and removed power. Then restarted using normal procedures. Both P-mags were operating normally this time. I have my P-mags wired the same as Bill Repucci, but with a switch instead of the stereo plug.

I haven't heard back from Emagair yet. Curious about this one. I will admit that my grounds are run to the ground buss, but I do not believe this is an intermittent ground problem.