Arrowhead

Hello, I am in the process of a tune up, adjust valves, caps, rotors, wires, belts, etc. I am also trying to fix an oil leak dripping down from the crank pulley area and settling on the bottom of the engine case. I did a partial engine drop and changed out the crank seal and intermediate shaft o-ring. I buttoned it back up and I still have the same leak. Any idea's about where it is coming from. Is there another seal I am missing. Thank you