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Hello Woody,
the variocam system kicks in at much higher rpms than 1.000. So i think the noise must have another cause.
At 1.000 rpm and below maybe it's a bad main chain tensioner. Means that the timing chains are too loose. That makes a metallic scrapping noise. There are 3 main chain tensioners. Sometimes one or more fail.
Could you describe the noise a bit more detailed. Or better provide us with a video and the sound?
Regards, Markus
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