I have an older Elgin with decal SS and 4 ( most likely purchased in Canada) which I am assuming is Simpson Sears and 4 HP. The only #'s I could find were on the mounting bracket (model C945-5045 and Serial # 682537 or 662537) and on a small bracket near carb is 634-08B and 4564940. I would like to disassemble lower end and install a new seal kit. I cannot determine how to remove prop as there are no pins or screws visible and I do not want to force. Could someone tell me how this prop would be removed and possibly a year of the motor so I could order any parts if available. Thanks in advance.