after thirty plus years the oil oxidized and turned into a tough grease that demanded cautious disassembly with plenty of time soaking with solvent/WD40 to even break things free. There was hardened grease staining of numerous machined metal surfaces but persistance cleaned those up also. RWJs motor may have been cared for more then my short block by someone that rotated and oiled it regularly but I doubt anyone would be brave enough to risk pouring fuel in it and try cranking it up--
What a neat piece!