Is it? Cause is order to have the .002" difference between the two as you mention actually only gives .001" clearance all the way around(the measurement you get with plasti gauge). That's my confusion. I understand perfectly how these to different measurements can come up. But which way do people refer to. Say do instance I need .002" clearance on my mains, are people always talking about the measured difference between crank journal and bearing ID?
