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The whiring is not temerature dependant. Sounds pretty much the same cold vs. hot.
The sound is RPM dependant. The higher the RPM, the higher the pitch the whir / whine as one would expect. A "gear driven" sound is accurate as Matt has stated above.
Sounds like in the near future I will be pulling both covers as time allows paying close attention to if the tensioners are pumped up.
I will also look into the alignment of the idler sprocket. If memory serves, this arm can float on the pin(?) and is located on one side by the cover and the other side by the tensioner arm around the pin.
Thank you,
Marlin
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Marlin
82 911SC
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