Generator - RB340 -Testing

[Erica_Moss]

This was the thread I started some years back

Is this armature fixable?

So sick of failing generators. I rebuilt my original one maybe 400 mile ago with a rebuilt armature. This morning I started it and it had a no charge condition. I did the first test in the Lucas diagnostic booklet, removing the wires and testing voltage from the D terminal to ground with no bridge between D an F terminals. It was 2V at idle but ran up to 27v at 3k so it has a short. I pulled it apart and found this. [IMAG0205] I gather this happened because they didn’t undercut the ins…