My cam bearings in the engine have less than 1000 miles on them and they all look new except one of them, im pretty sure someone tried to scratch it with their fingernail (not me) for some reason, looks sort of like a scuff, i don't see any copper color, but it just looks suspicious, not sure if this will wreck the cam or not, I don't think its worth getting all new cam bearings though, what you guys think?