Should I replace my ISIS BB?
After a couple thousand miles on my Felt F-55 w/FSA ISIS BB, there was a lot of creaking from the BB whenever I cranked hard - like going up hills. The shop that I bought the bike from said the threads just needed greasing. So, they pulled the BB, greased the threads and the creaking was mostly gone, but not entirely. The creaking ramped up to its previous volume after another 500 - 1000 miles and I just kept riding it that way. Now that I'm not riding that bike (because it is winter time), I am thinking of replacing the BB. However, when I remove the chain, the cranks spin freely and I don't feel any grittiness through the Al frame (holding the seat or down tubes). Does that mean the BB is still fine and I should just re-grease the threads? The BB now has about 4800 miles on it, mostly in dry conditions. I have heard the ISIS BBs can wear out rather quickly.
Thanks in advance for any advice.