Try calling Bradleys generator repair in Portland tx,(near corpus),they may be able to rebuild yours.Just curious but what maintenance is on a 20 year schedule?
I replaced the entire pancake and regulator on my generator assembly last year. You can order from Power Tech or from Marathon.John M.
Bet you the parts are out there. Don't take the word of the first couple of new age key puncher's you talk to as gospel..
Have you gone on the powerTech website? I've got various parts this fall for my 98 8KW. Jeff at powerTech is the expert. In the last year and a half I replaced a voltage regulator, thermostat,...
I just had Eurton Electric in California rewind my Onan rotor and it looks better than new. Motor Catalog: Armatures | Eurton Electric