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Old 04-18-2010, 02:03 AM   #1
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Procharger Impeller noise?

Hey Guy`s, I have my PC installed and am now tuning with Tom, My question is the idle noise the super charger makes. I have listened to all the videos I could find. Most make a kind of rattling noise. Very metalicky? I took it back off to double check it. No up or down movement on the impeller bearing. But there is back and forth movement,maybe a 1000th of an inch. I can dublicate the noise with the engine off, by just tapping the serpentine belt. I installed a new key way in the pulley side. Is this sound normal? runs great other than this noise. Thanks for the input.


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Old 04-18-2010, 04:13 AM   #2
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Make sure your pulley is aligned., it may be causing stress on the axel and housing
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Old 04-18-2010, 05:46 AM   #3
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Yeah, I am sure I have it lined up straight now, as I damaged a new belt before. Turned out it was the pc idler pulley . Seems you can move the whole mounting system around alot.
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Old 04-30-2010, 12:04 PM   #4
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See that happened to me before as well on my old focus. I never really could find out what exactly it was.. never could create the noise my tapping the though...

Needless to say everything worked perfectly

Not sure if that helps any
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