Excellent find. Where are you located Wy037? Very interesting prop. For you questions on the Motor,
2. Kiekhaefer Mag .008
3. for 1/2" Reach L type .030 & for 3/8" Reach J type .025
4. John Deere Corn Head Grease
Send me your serial number and I'll get you a parts list, let me know what diagrams your looking for of course your best bet is to get your own service manuel. On the wiring harness start hitting AOMCI swap meets, you can make one , or by new from Ferguson Poole marine, John McIntosh, or others. Let me know if you need anything else.
Keep em Alive! 4 Cylinder Mark series of the 50's Main Interest but passion is with all Antique/Vintage Outboards. Mark20,30,55e,58s(4),78AEL,64'Merc 650(2),Mark 78AEL. 63' PowerCat 14-C w/twin 650's,14' Glen-L Zip w/Mark 58s