I am jealous... I don't know any more about it than what you posted, but if google doesn't tell you what you need to know, I'd contact Onan directly.
All I know is that 1) chances are, every part on that thing was produced right here in the USA. Pretty neat thinking there was a time when things were made that way.
2) it's pretty much bulletproof. Old stuff is normally simpler, with fewer parts to break. 3)It's an Onan. Sure they can be difficult to get parts for sometimes, but they build a heck of a good engine!
All I know is that 1) chances are, every part on that thing was produced right here in the USA. Pretty neat thinking there was a time when things were made that way.
2) it's pretty much bulletproof. Old stuff is normally simpler, with fewer parts to break. 3)It's an Onan. Sure they can be difficult to get parts for sometimes, but they build a heck of a good engine!