Casn you all tell just by looking at this pic if its the coupler or just a pully or tensioner?
No....Spin the pulley back and forth and listen for noise...IF you hear some rattling/clunkin noise than it'* the coupler.....Which is probably not a bad idea to replace anyways for good measure...I gotta do mine soon when I get the money for gaskets.
You may have a leaking snout seal, CR-7965 or one of the two mating surfaces between the snout and the supercharger housing. My seal leaks a bit. There is a way to put on a new seal without taking off the whole supercharger, but I haven't been able to get the new seal back on properly without ripping it. I think you need a seal installer.