We were diagnosing a tapping sound and found the vac pump is blown. All 12 ball bearings are gone. The engine still runs fine (I hope) I've looked at a bunch of the vac pump failure threads, but am not sure what to do now? Are all the bearings in the oil pan now? Should I drain the oil and/or drop the pan to see if all 12 bearings are there? Or would they not make it back to the pan?

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85' 300D