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the bearings are set up L to R #1 main thru #5 and same on rods L to R. uppers are at top and lowers on bottom. they have about 40-50 passes and 1500-2000 miles i'm guessing. what do you think? did they get enough oil and especially #1 main and rod?
If my bearings looked like that after the amount of use you described above, I'd be concerned about the source of the problem. The rods look "so-so" at best, and a couple of those crank bearings just plain look bad, maybe like temporay oil starvation.
Not sure I can add any more to what others have said. I, too, suspect the crank has issues, but would want to verify there are no obstructions in the oiling passages, etc.
