RE: OS .46SF- Re-Ringing
MrBigg,
Removal of the sleeve was an imperative stage, of course.
Try turning the engine to BDC, so the up-most part of the con-rod is accessible... Now grab it with a pair of needle-nose pliers, with tape-wrapped jaws and pull it rearward as far as it will go.
Afterward, turn the engine to TDC and pry the bottom-end off the crank-pin with your fingers, or with a small Allen wrench.
The chamfer at the front of the bottom-end bore should allow the rod to be buckled enough to unhook from the crank-pin.
...After all, if you need to apply some force to unhook the con-rod, then when this engine was assembled a similar force had to be applied to get it hooked up...