repeditive generator failure

Posted by steve-52/200 On 2011/10/31 6:34:51

I have a 52 200 ,resto is almost done, and I can use her for a commuter BUT
I seem to go through a lot of generators! ,recantly have been plagued with a persistant battery light being on ,sometimes after the car is shut off .
I posted this one and got the advice to check the ignition switch .I replaced it, charged up the year old 6 v battery while I was working on it .Seemed to work for a bit .Not so long ago I had replaced the voltage regulator and while trying to figure out the battery light mystery I took off the regulator cover and checked its points, which looked ok no burning or sticking noted ,I polarised it as I had had the battery unhooked.
I had replaced the coil condencer and ignition points ,plug wires ,even the harness as part of the resto .

recantly the battery light came while driving on the highway at speed but not at street speed (,about a 120 mi trip over two days @60 mph including about 1/2 of the time with the lights on) , now the battery is dead .I guess the car was probably running off the battery not the generator and now ,run down,she wont start .Seems like the generator isnt charging at the higher rpm .this is my third generator .I'm guessing this one doesnt work when at higher rpm's ?Seems like a generator issue perhaps the rotor.
,Ive gotten rebuilt generators from both max merrit and kantor.perhaps they rebuild the brushes and paint them but dont check the rotors to check for shorts which might show up at elevated rpm 's .
In plumbing this mystery on the packardinfo site I saw an interesting post about high internal resistance from a weak battery causing charging problems ,I'M concidering a shotgun approach and switching the generator again as well as the voltage regulator but am worried about negative effect on my marriage .
I saw on the sites parts cross reference that the voltage regulator for a 53 was available through napa ,how about a 52?
the belt is a modern one and not the big old size,too tight destroying the generator?
CLUELESS!