The bottom bracket on the '87 Ironman I just picked up was smooth, but I repacked it together with all the other bearings. Now it has slight grittiness--seems obvious some dirt, dust, etc. got in there. I have a strong suspicion whatever is in the grease--an ant, piece of shop dirt, I don't know--will get pulverized pretty quick.

My question: might it be ok to do nothing? I'm not eager to overhaul the BB all over again. I hope this question does not offend the more fastidious mechanics in this forum.