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Why does the supercharger make a rattling sound even after all the bearings have been checked and all look fine?


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2013-02-26 01:50:22
2013-02-26 01:50:22

were the bearings on the pulleys checked, or the bearings in the blower?

i was having this very problem--the tensioner and idler pulleys as well as the serpentine and supercharger belt on my 98 GTP were all replaced--seriously every pulley and belt on the engine--and there was still a rattle. I'm told the bearing inside the supercharger (???) could be the problem, meaning that one day the supercharger could die, throwing its belt and leaving me royally screwed.

ok, so i didn't exactly answer. sorry about that. i found on magnason superchargers when the front cover is unbolted and removed from the blower housing there is a spring loaded dampner the attaches the drive pulley to the rotors when removed you will here the spring uncoil i found this to cause play between pulley and front drive gears . a quick way to see i someone tampered with the blower is disconnect the s/c belt and turn the pulley back and forth (with engine off!!!!)if you here cluncking and feel play chances are the dampener spring was toyed with and needs to be dissassembled and assembled correctly.if you are talking about a centrifical vortech charger we always get low rpm rattles with some age but rattles subside when you start to wind them up.a make a model would be helpfull!!

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