I think finally resolved my timing sensor leak! It appears that two small divots on the very top of the molded rubber housing were weeping oil. So, yes, I believe the oil was migrating up through the center of the sensor. I cleaned/wiped off all the residual oil from the molded rubber housing, cable sheath & coil body. Then placed a drop of penetrating loctite on the two divots, sheath & molded rubber junction and on the business end of the sensor. I then slathered moulded rubber area & sheath junction with JB weld. Installed a new oring ....after a few hundred miles it ain't leaked, seeped, weeped yet. I hope it holds up, it looks like these are well over $100.