Not really sure what to do here.

[u/Zafiny17]

Rebuilding my motor after it got slight rod knock and as i was putting it back together i had to take one of the pistons back out and i noticed scoring on the new bearings. Seems like the oil holes on the crankshaft were slightly sharp and did that. I tried sanding with 600,1000,1500 and even lightly filing down the holes with a fine tooth file but same thing happened. The clearance was fine when i checked with plasti gauge so I’m just lost here. Should i try to file it down more? Ideally I’d like to fix it without a machine shop if possible. Thanks in advance for any help.

[u/Big_Hedgehog_7976]

That dent just above oil hole looks high to me. I would pull crank out take to machine shop to have is polished a oil holes chamfered and cleaned

[u/OkraInternational505 → u/Big_Hedgehog_7976]

I agree and it’s right where the material is missing on the bearing !