Tore engine apart cleaned all up, couldn't get ring grove's cleaned out so I ordered a grove cleaner, scraped them down to shiny and put rings on, put new main bearings in and replaced crankshaft, took #1 piston and drove into cylinder 1, put new rod bearing in and bolted to crank, and I can't turn the crankshaft, even checked ring end clearance, for some reason acts like the rings are to tight. all info. and help appreciated, Thank you all.