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High pitch noise from alternator

JB0702
JB0702
in Ford Fiesta Club

Featured Replies

Hi, 

I have purchased a remanufactured alternator for my fiesta. I just got the alternator and I realised that when I turn the pully, it’s making really high pitch noise. The noise is not loud but I can tell it is definitely there.
Is it normal to hear a whiny high pitch noise? It is coming from both directions although anti clock wise is not as loud as clock wise. All parts in the alternator looks intact and good. 
I have recorded the noise and here is a link.

Thank you!  

  • Quote


    Seems normal to me.

    It's not a good idea to spin alternators when open circuit and also in the wrong direction.

  • Quote
    • Like 1
    • Author
    1 minute ago, unofix said:

    Seems normal to me.

    It's not a good idea to spin alternators when open circuit and also in the wrong direction.

    Oh, okay! Thank you so much. I won’t spin it anymore then 🙂 

  • Quote
    • Like 1
    • Author
    3 hours ago, unofix said:

    Seems normal to me.

    It's not a good idea to spin alternators when open circuit and also in the wrong direction.

    Oh I forgot to include this video to the question 😅 where I zoomed in to the alternator before. Does it still sounds normal?? It’s really loud in this one… thank you! 
     

     

  • Quote

    Still normal 👍

  • Quote
    • Like 2

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