Smoked outrunner questions

both are 50-55's I used the shft out of the 600kv so I didn't have to cut the 400's. I put it back in 600 and its fine. I took all three bearings out of the 400 and they are good. I never tried 6cells with the 600kv motor. I did run the 600kv on 18 nimh cells without any problems other than weak start-up.