yes your math is screwed up. I doubt you have .25 clearance with plastiguage, check your decimals. The rod bearing makes the bore smaller not bigger, subtract the bearing thickness from the bore. 2.250 - 0.124 is 2.126 which would give you .001 clearance. Those numbers are no where near accurate enough. You need the tools to measure accurately to 1/10's (.0001) for them to have any value.