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BUL 2.0tfsi bottom crank sprocket not running true

RichMk3 May 20, 2018

  1. RichMk3

    RichMk3 Active Member Bronze Supporter

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    So, I've just changed the cambelt and noticed that the bottom toothed sprocket is not running true when you turn the engine over. The larger Polly v belt damper that bolts to it does run true thou..

    I've tried to take a video of it, this doesn't look right to me at all... Can anybody confirm?

    View My Video
     
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  3. RichMk3

    RichMk3 Active Member Bronze Supporter

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    Panic over.. just discovered that the bottom pulley is elliptical to reduce stress on the cambelt and increase service intervals...

    Everydays a school day eh..
     

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