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Thread: New mechanical noise from the engine

  1. #1
    apriliaforum prov-nov
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    New mechanical noise from the engine

    My 2008 RSVR (45.000 km / 28.000 miles) has developed a knocking noise which varies with RPM. Most audible at idle.

    My first impression is that it could be a loose timing chain. What do you guys suggest?

    EDIT: corrected belt -> chain
    Last edited by Mikeyx; 08-25-2019 at 12:25 PM.

  2. #2
    apriliaforum Junkie
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    Yes. Timing belt. Make a video...

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  3. #3
    apriliaforum expert TeddyG's Avatar
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    I concur w/ the above but it could be a faulty cam chain tensioner - they are hydraulic and do a search for more info on checking them

  4. #4
    apriliaforum prov-nov
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    Today no additional noise.
    Would that give even stronger evidence that chain tensioner is gradually losing its grip?

  5. #5
    apriliaforum expert kzmille's Avatar
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    Sometime when the engine stops a tensioner is under pressure and it will leak down over time. Once the engine is running again it usually bleeds over time and the noise ends.
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