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Alternator pulley misalignment - HELP

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    Alternator pulley misalignment - HELP

    I have been having issues with an intermittent squeal from the alternator belt. After much investigation I think I found the culprit. The alternator pulley appears to be sitting at a slight angle. The result is that the belt doesn't sit flush on the pulley. See the image.

    Is there away to adjust how the alternator sits. Does the alternator support bracket have some play room? How do I adjust this so the pulley's align???
    Last edited by Gk-89E30; 06-23-2023, 06:20 AM.
    GK
    Conformity is a crime

    #2
    There isn't any adjustment as far as I know. You might just have to bend the bracket a little so then you tighten everything back, the pulley is aligned
    1990 325iX Touring - November 2018 R3V Car Of The Month

    1980 Volkswagen Golf mk1 1.1
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      #3
      Yeah the only adjustment is just with the bracket and that's for belt tension.
      Seems your bracket is bent a little bit and it's pulling the alternator back with it.

      Take the bracket out, bend it forward about half an inch, put it back in, check the alignment.
      If it still needs more, bend it another half inch.

      At this point I would recommend you take out the long bolt in the block for the alternator to anchor to.
      With this much misalignment it would be possible the bolt is bent or rusted and thin, just check it out, straighten if needed, or replace if it's bad. :)
      and the rubber bushings as well, they're probably brittle and crushed, might be the reason your alternator is bent in the first place, so pay good attention to those as well.

      When you put it all together, make sure the alternator cooling fins are not hitting the radiator hose, ask me how I know.
      Last edited by hozzziii; 06-26-2023, 02:53 AM.

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        #4
        I removed the bracket and inspected it. I didn't really see any signs of warping, the bolt came out pretty easily. I am not sure how else to tackle this problem. hozzziii do you have a formal way to check if the bracket is bent. I was thinking of using the laser method to check alignment more accurately. I am also in the process of changing out the alternator belt because its so worn out. Probably a matter of time till it breaks and which is only 1 year old).

        Also if the rubber bushings are so worn what should I be seeing or feeling. When my alternator is bolt on, its seems pretty solid. No play at all.
        GK
        Conformity is a crime

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