Spring loaded superchargers?

drewk

Registered User
Anybody know what the deal is with spring loaded blowers? I have two of them of from early model SC's. You can hold the rotors in place and turn the pulley at least a few degrees before there is tension on the rotors. There isn't any play or noise in the unit, and the blower off of my car as well as a few others that I have had don't do this. Any ideas why they are like this?
 
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