1. Removed crankshaft from engine stand. 2. Installed new oil seal on front of crankshaft. 3. Reinstalled crankshaft on stand. 4. Installed gear on rear of crankshaft. 5. Installed bearings in both side of crankcase, lubricating with Lubriplate. 6. Reinstalled push rod tappets, lubricating with Lubriplate. 7. Placed one half of crankcase in plate, and secured with bungee cord. 8. Reinstalled cam shaft. 9. Reinstalled gear on end of camshaft. 10. Searched for and found timing marks on crankshaft and camshaft. Aligned. 11. Halted engine assy, pendng arrivial of parts for fit check.