just an info story. when i changed my oil a couple months ago i noticed some oil leaking down from the crank pulley. i thought first it probably was a seal, i took it in to get diagnosed today and the oil was leaking out of the bottom of the supercharger's oil drain back hose. the hose clamp was loose. he tried to tighten it and it was striped and wouldn't tighten. so he had to put a new hose clamp on. he said it may be because the clamp was tightened to much when first installed. then he cleaned up the area where the oil leaked onto by spraying with brake clean, then sprayed air to dry it off, clean man clean. fyi