play in the pulley? I've got some noise, but it doesn't go away if I rev it. I figure it'* bearings. I do have a couple degrees of pulley slop. It seems to me it could be the natural play in the gears, but I don't remember from last time I checked for slop. I'm gonna get a rebuild kit soon and want to know if I should include a coupler.
I say opt for the coupler and get it over with. You know you don't want to tear the supercharger down and realize that you need a coupler when the car is needed 'in the morning', but you'll have to wait 3 days just so you can put it back together, or you just have to tear it down again.