Checking Connecting Rod Oil Clearance

I'm checking the oil clearances on the motor that I am building. I'm checking the oil clearance on the rods next. The rods that I'm using have the alignment sleeves on the caps. I remember the caps being difficult to remove from the rods when I got them. I'm checking oil clearance with plastigauge. So after I torque down the rod caps on the crankshaft, how do I remove the caps.