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29 Apr 2026 09:01 #7 by John Herman
Replied by John Herman on topic Generator
Thanks for responding. We tried , but still we are not getting what we are looking for. It may be a bad generator, so it may be time to look into an alternator..
Thanks Again, John

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29 Apr 2026 08:58 #8 by John Herman
Replied by John Herman on topic Generator
Thank you for responding. We tried but so far no real progress. It may be time to consider an alternator.

Thanks again John

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24 Apr 2026 18:20 - 24 Apr 2026 18:26 #9 by Brooks McNew
Replied by Brooks McNew on topic Generator
It doesn't even need to be running to do the flash. I use a piece of wire to jump power from the +  post on the starter to the A stud on the generator. Master on (for power at the starter post) but engine is not running. Just a quick touch of the wire to get a spark and then it was good to go. Aircraft had been in storage for years.

Later, I switched to the new solid-state regulator that can auto-flash the armature so it's been no worry since then.

 
Last edit: 24 Apr 2026 18:26 by Brooks McNew.
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23 Apr 2026 14:59 #10 by David Gilson
Replied by David Gilson on topic Generator
While the engine is running, put a jumper between the armature connection on the voltage regulator (middle pring) and momentarily "flash" it to the positive side of the battery. There is no need to disconnect any wires or connect any wires besides the jumper. After the initial flash at the battery post, it doesn't spark anymore. After the initial spark, bring the rpm up to at least 1500 and the amp meter should come to life.
It took so much time to figure this out, I literally typed these instructions and put it in my aircraft logs.
I hope it works, if so you will know right away. Please let me know if you're successful
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23 Apr 2026 14:01 #11 by John Herman
Replied by John Herman on topic Generator
David, If you can tell me how to Flash the field I will give it a try. I really appreciate the help.
John

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22 Apr 2026 21:13 #12 by David Gilson
Replied by David Gilson on topic Generator
You may have already tried this, but you can flash the field. It's pretty easy and takes about ten minutes. Much easier with two people but can be done alone. I had a hell of a time getting the procedure but I eventually got it and wrote it down in my log books. Basically if you've put in a new/different generator you will probably need to flash the field. Let me know if you want the procedure. If it works, you know immediately

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