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That aluminum journal should be polished. All that embedded material needs to be removed. Also the burrs on the edges of the journal need careful removal and polishing.
It should look clean, like brand new, if you are rebuilding it proper
If you had a SEM to look up close at those journals the way they are, you would tell me there is no way no how the engine will run properly for very long the way it is.
The surface is critical to engine wear, oil flow, longevity
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