I have been under hoods for many, many years but have recently started to hear that polarizing the system is for the regulator rather than the generator. This is .contrary to what I have always thought. I have also seen instructions to polarize by connecting bat to field and bat to arm..I know what I have done but want to get a consensus opinion' Finally I have a 50 and a 35. The 35 has a fully rebuilt 53 short frame gen. When started after several months sitting it will not charge. I believe that the gen has lost its residual magnetism. This does not happen with the 50. My solution is to restore the magnetism by quickly jumping bat to field. So far I have not burned up anything . Am I lucky or has anyone else had this happen Loose Rocker
Polarizing sets the initial magnetic field for the generator. I believe some folks get that confused, since it's easiest done at the regulator by momentarily jumping the Battery (BAT) and Armature (ARM, sometimes marked GEN) terminals. You don't want to jump to Bat to Field. The engine should be shut down, of course.
This generator polarization procedure from Delco (Bulletin 1R-117, dated 9-15-53, p. 3) is at the bottom right of the page in the image below.
Last edited by dreep; 10/13/1907:07 PM.
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