RE: Welcome to Club SAITO !
All this stuff about bearings in 82's. All interesting me for the bearings I need for any of my model engines I just go to the local bearing shop wioth the old ones in hand and buy replacements.
But once again I ask why do you use castor in these modern Sais when the manufacturer specifically states that 20% synthetic is what is to be used.
All the problems you guys appear to have would appear to me from past experience to be the result of overheating bought on by not enough oil or the incorrect type
Just a thought