recently i had an issue with my front crank seal, it suddenly started leaking so i dug in to replace it, when i got the oil pump off i noticed(but forgot to take a picture of) that the seal had worked it's way out about a 1/4" and the lip had touched the bevel at the neck of the harmonic balancer and worn completely off, pictured below.
has anyone had this issue? could it be a bad seal or sloppy oil pump machine job?