Forcefed86

iTrader: (4)

Tore down a cheap 5.3 motor tonight. 2 of the mains have copper showing at the upper edges of the cap. Is this normal? I see no abnormal wear anywhere else. Crank looks good. Is this typical of a 100k mileage motor? Anything to worry about? Should I just replace them? What would cause one are to wear like this?

Local had mentioned that some of the trimetal bearings would wear this way over time (high mileage) and that it was normal. He suggested I just slap it back together and run it.

Suggestions?