Another shot of the babbitt strip from thrust / plain / main bearing of the crankshaft. Flywheel side, oil hole half only, all other bearing surfaces are OK. Crank missalignment? But it would reflect on the transmission side, which is not. I'll try to reassemble it as it is, to see how it goes. Before buying a new crankcase, I think I will bring the shaft to the shop to be checked thoroughly. I'd love to try to re-babbitt it, only don't know how to pull them out and put back afterwards. From https://cr4.globalspec.com/thread/4474/Re-babbitt-bearing-procedure

"I remember watching my father repair a bearing on some sort of farm implement years ago. He hammered and scraped the old bearing material out of the end bells and polished the shaft with a strip of crocus cloth. Then he wrapped the shaft with a piece of linen-based paper and poured the molten babbitt into the bearing shell with the shaft in place. the carefully-wrapped paper prevented the babbitt from siezing the shaft and provided a few thousandths of clearance. This of course was not a very sophisticated piece of machinery, nor was it intended to run at high rpm, but many of those old implements were designed to be repaired on the farm in just such a fashion. I remember being very impressed!

Lindsey Publications used to do a wonderful job of documenting these older technologies. Perhaps they have a website. Worth checking out.

Lonnie"
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