Rod Knock?

[mike55112]

Originally Posted by Matt D.

Have fun spinning a bearing.

Those scratches are imperfections in the journal surface. The bearings don't ever actually touch the journal, they are always separated by a thin film of oil. Any sort of scratch means there is imperfections in that surface making it more difficult for the bearing and journal to stay separated. It won't fail immediately unless there is assembly error, but you can't deny that it won't shorten the life of that bearing.

^ what matt d said.