Generator

[GuyTN]

The rear bearing on my generator squeals at startup, but quiets after running awhile in spite of the fact that I oiled it recently. The generator is still charging the battery. Should I:
1)Do nothing
2)Remove the generator & have it rebuilt
3)Replace it with a rebuilt generator
4)Replace it with an alternator
Let me know the pros & cons of these alternatives.

 

[Michael Oritt]

Guy:

If "Do nothing" means not starting the car then it's a viable alternative--otherwise do something.

If you don't care about originality and (if you have not already done so) are willing to convert to negative ground I'd suggest bagging up the generator and going with an alternator.

If either of those considerations matter to you have any decent starter/generator shop replace the bearing for you with one that does not require lubrication and while they are in there they may as well replace the brushes, check the commutator, front bearing, etc.

 

[Keoke]

Well GuyTN, I am not sure there is a rear bearing per se. Most of the Lucas units use an oilite bush in that application which has a felt inside that must be loaded with grease and then periodically oiled. I would bet on the noise coming from the front ball bearing and if it is not corrected it will ruin the generator.---Keoke

 

[healeynut]

The rear bearing on my generator squeals at startup, but quiets after running awhile in spite of the fact that I oiled it recently. The generator is still charging the battery. Should I:
1)Do nothing
2)Remove the generator & have it rebuilt
3)Replace it with a rebuilt generator
4)Replace it with an alternator
Let me know the pros & cons of these alternatives.

GuyTN -

The squeaking is caused by the fact that at one time you didn't oil the rear bush enough, it got dry, and the rear armature shaft spun in such a way to wear out the inside of the bush. Now that the inside of the bush is "spun" it can no longer hold the oil in the brass and therefore it squeaks until the car warms up the brass bush.

It's an easy repair, all you have to do is buy a new bush, soak it in oil for a day or two, and then replace it in the gen. Of course getting the bush out is a bit tricky but can be done.