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Thread: Alternator wiring Questions

  1. #1
    Senior Member David H's Avatar
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    Default Alternator wiring Questions

    I am double checking on the alternator wiring for my EX2.

    The Field 12V wire goes to the spade connector on the back of the Denso alternator nearest the IG mark on the black plastic connector housing (?yes). The CC wiring diagram shows a loop of wire to the other connector labeled as A09D20O - so ?nothing is attached to this other spade connector except a loop of wire which is to electrically isolate this connector?

    Thanks in advance.
    David


    Alternator pic.jpg

  2. #2
    Senior Member N867SP's Avatar
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    Default Re: Alternator wiring Questions



    This was the best shot of the factory harness and connector I could find in my build photos.


    Pete Meyer
    Severna Park, MD
    CCK-1865-0078
    ✈️N9PW
    Pete
    ✈️CCK-1865-0078 N9PW
    Severna Park, MD W18

  3. #3
    Senior Member David H's Avatar
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    Default Re: Alternator wiring Questions

    Thanks Pete!

    Great picture. That explains it. The "L" spade just has a loop of wire back to itself. That's what I thought it should be.

    ...moving forward...

    Slowly.

    David

  4. #4
    Member DRL's Avatar
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    Default Re: Alternator wiring Questions

    Quote Originally Posted by David H View Post
    I am double checking on the alternator wiring for my EX2.

    The Field 12V wire goes to the spade connector on the back of the Denso alternator nearest the IG mark on the black plastic connector housing (?yes). The CC wiring diagram shows a loop of wire to the other connector labeled as A09D20O - so ?nothing is attached to this other spade connector except a loop of wire which is to electrically isolate this connector?

    Thanks in advance.
    David


    Alternator pic.jpg
    The significance of the field portion of that connector may not be readily apparent. It is important to make the best crimp possible, and not a bad idea to pot the connector with RTV for additional stress relief. Loss of the field can eventually result in having a very bad day if the required flight time is longer than the batteries will last.

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