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Whining From Supercharger

G

Grand Prix1

New member
Im getting a low to high pitch whine coming from my Supercharger as I accellerate and its getting worse. I have a 1998 Pontiac Grand Prix GTP. This started about a week ago and I just changed the coupler in the Snout and I used GM Supercharger Oil about the same time. I think it might be the Rotor bearings going bad but Im not sure. Any answer as to what this could be will be greatly appreciated. A friend of mine said that when I changed the oil I cleaned out what was keeping the bearings from failing, but the bearing problem would have showed up anyway. I have 137,000 miles on the engine and I keep the fluids top off and changed regularly. No leaks at all.:(
 
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Re: Wining From Supercharger

Grand Prix1 said:
Im getting a low to high pitch wine coming from my Supercharger as I accellerate and its getting worse. I have a 1998 Pontiac Grand Prix GTP. This started about a week ago and I just changed the coupler in the Snout and I used GM Supercharger Oil about the same time. I think it might be the Rotor bearings going bad but Im not sure. Any answer as to what this could be will be greatly appreciated. A friend of mine said that when I changed the oil I cleaned out what was keeping the bearings from failing, but the bearing problem would have showed up anyway. I have 137,000 miles on the engine and I keep the fluids top off and changed regularly. No leaks at all.:(
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Yep it's the bearings, mine did the same. If you want to isolate it completly to the S/C then just take off the belt and drive it. See if it's making the same noise. But chances are it is the bearings.
 
Re: Wining From Supercharger

Simple check is pull the belts and roll the pulleys, every pulley except the balancer should roll smoothly, if it grinds, hesitates, or has a rough spot it needs to be replaced.
Just a check before you go thru the hassle to replace the SC bearing to find out its still there and it was just a $5.00 idler pulley :th_thumbsup-wink:
 
Re: Wining From Supercharger

I removed the belt to the Supercharger and the noise went away. Does anyone know where I can purchase a good used or remanufactured SC or instructions on how to remove and rebulid the supercharger I have already.Any help would be greatly appreciated. I call Eaton and they sent me to Magnusson Superchargers. They completely replace everything but the housing but they want $1100 for the one they rebuild and to me that's a bit to much.:th_depressed:
 


Re: Wining From Supercharger

My supercharger has never made this type of noise and as I stated when I removed the SC belt the loud noise/wine has stopped.:th_depressed:
 


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