Just out of curiosity. What are you trying to achieve/test?

My guess in this case they either used the wrong oil (viscosity) or overfilled, which leads the S/C snout to push the overfilled oil out through the snout and ultimately the hollow screw. But that would have to be a lot of overfilled oil to gum up this relatively large snout. I just don't see how it became clogged unless the wrong pulley screw was used (one that wasn't hollow), the wrong oil or just massive overfilling.

Never seen that issue on any of our pages through the years. What were the symptoms of this vehicle?
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