Rebuilt Engine bearing wear

Well I have them if you want them. Or I might want them. I have a solid rod knock now. Strange thing is this is EXACTLY what it did when I started my engine for the first time. Same place even. Narrowed it down with a stethoscope. Same exact place. Same exact noise. Last time it went away the next day. This pisses me off. Hopefully it goes away like it did last time. Will update you guys. Machine shop did tell me I may as well replace the bearings while I have the pan off. Now I regret it.

Rod knocks don't come and go. But lifter noise does. Lots of folks think lifter noises are rod noises, but usually they aren't.

A rattle on start up is often a lifter issue. If it comes and goes, the lifter is probably junk. Hard to find good hydraulic lifters these days - assuming yours are hydraulic.