I hope you mean the crankshaft ... perhaps you need to remove the drive washer first, that is what holds the shaft on so tight. Or do you mean the connecting rod? You need to be clearer ...

As for the bearings you are best heating the engine up in an oven, once the casing is hot it will assist in removing the bearings. If your bearings are not bust leave them alone as you are not firmilar with removing them. You will have problems putting them back in again.

You need to disassemble the engine and polish the parts. Polish it with Autosol but DO NOT polish the inside of the liner and the outside of the piston. I polish my engines every 3 gallons. No point trying to polish your bearings!

When you remove the connecting rod please remember which side is the correct side when you assemble it back in. Bets to scratch an 'X' on the side that faces you.