unit has served us well for many years since new. Worked fine at shutdown from prior power outage. Started for next one and no output. I pulled the end cover from the generator and found the bearing trashed. There is a fair amount of shaft wobble. Is this generator done or is it worth going in and repairing the bearing? How many other things get taken out with a bearing failure like this? I guess what I'm asking is if these things are throw-away machines or worth rebuilding? Thanks in advance, C.