Well I opened up the brand new 3B made in Korea oil pump last night and noticed a sand looking powder in there, just the like another user had. It didn't feel gritty to me though and almost instantly dissolved when rubbed between fingers, kind of like talcum or graphite. Could it be some kind dry lubricant? I'm guessing this is the case.
I cleaned it out anyway and applied assembly lube before putting it back together


I cleaned it out anyway and applied assembly lube before putting it back together

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