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  1. J

    Is this an issue with the belt of my 2008 3.0L MerCruiser?

    Ah good to know, thanks. I've removed the alt belt and it's no longer making the noise. If I manually turn the alt I can hear the tiniest squeak in one particular point in the rotation, but its hard to imagine thats the source of the noise as it's barely audible? I got my electriic drill to...
  2. J

    Is this an issue with the belt of my 2008 3.0L MerCruiser?

    Thanks for the suggestions! I used a stethoscope and the noise is defs coming from the alternator. Checked the battery and it was 12.86V without the engine running, then 13.21V with the engine running, which with some googling suggests the alternator is not doing it's job properly? Will remove...
  3. J

    Is this an issue with the belt of my 2008 3.0L MerCruiser?

    Please see link here for video with audio. I'm very new to boats, and my MerCruiser inboard is making a squealing noise when in neutral or in low RPM. Sounds like the belt to me, any guides on replacing this myself if that's the case?
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