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Thread: M47 crankshaft pulley .. again ???

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  1. #1
    BMWHaus Guru
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    Jul 2013
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    M47 crankshaft pulley .. again ???

    Lads, a few months ago my vibration damper failed so I found a febi replacement online(autodoc.co.uk) for a very good price.
    The past few days I’m starting hear another knocking sound, most noticeable at idle but not as bad as before.
    What are the chances a febi unit has failed so quick? I took a slomo vid of it running and can see a hop in the pulley that coincides with the knock.

    Link to vid:

    https://youtu.be/eXBKgJTuLo8

    Anyone else experienced this before? Any input appreciated.
    Last edited by John_D; 20-03-19 at 18:20.

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