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Is this sound normal and or ok



When i turn it over and rotate the fins one of them can move very slightly side to side ill try to get better sound
 


Doesn't really raise an eyebrow to me.

Pull the rotor pack and see what the case looks like if you want, it's going to have some marks just from being a M90 with miles on it.

The rotors don't look munched or anything and it looks to spin freely without an issue. I'd slap it right back on and not even care.
 
Doesn't really raise an eyebrow to me.

Pull the rotor pack and see what the case looks like if you want, it's going to have some marks just from being a M90 with miles on it.

The rotors don't look munched or anything and it looks to spin freely without an issue. I'd slap it right back on and not even care.

If you do this, the black coupler is right there to replace which is a common problem. Coupler will go before the bearings so I would worry much about that. Buy a coupler kit and replace the supercharger oil and coupler.
 


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