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Thread: 20 Amp Generator Lifespan?

  1. #1

    Join Date
    Mar 2016
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    Merritt Island, FL
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    Default 20 Amp Generator Lifespan?

    How many hours should one expect to get out of an overhauled stock PA22 generator? Brushes and bearings or bushings all needed at the same time, or does one component wear out before others? Thanks.

  2. #2
    Pacerfgoe's Avatar
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    Nov 2009
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    Close to Edmonton, Alberta
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    Default Re: 20 Amp Generator Lifespan?

    Surprised your not getting any answers to this.....I haven't got a clue how long things should last. I took mine apart last year to have a look at the brushes and it looks like new inside. I would think that the brushes would be the part that would wear out first, but I don't know how long they last.

    Maybe someone in the know will answer.....
    Forrest Miller

  3. #3
    Administrator Steve Pierce's Avatar
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    Nov 2007
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    Graham, Texas, United States
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    Default Re: 20 Amp Generator Lifespan?

    I have them rebuilt at engine overhaul.

  4. #4

    Join Date
    Mar 2017
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    Frederick MD
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    Default Re: 20 Amp Generator Lifespan?

    All I can say is that they are 1950s technology. I remember spending “quality” time with my dad going to “you pull” junk yards as a kid getting generators and starters all the time. Seems they didn’t last very long in the car. Can’t imagine they Last long in the airplane. When I had my TriPacer, I remember bringing the generator to the auto electric place at least once for new brushes and bearings. Had to replace the regulator once as well. I put about 600 hours on the airplane over about a 5 year period.


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