Battery is not being charged MB 1941

[Jim Gordon]

It appears that the battery is not being charged. Amp meter does not move when a load is added, nor does it indicate a charge when the engine RPM is increased. Generator completely rebuilt within a year, and has functioned with full output. Battery is new. Wiring, starter switch etc all new. Regulator has been a problem in the past and has responded to a few corrective raps to the cover (probably all original parts). I cleaned the points with a clean metal point file, and no change. The slat manual check procedure is to use a jumper wire between field and armature terminals (I ASSUME THAT IS THE REGULATOR TERMINALS, ANY CHANCE FOR DAMAGE???)

The points on the reg. look good and seems correct clearance.

The points on the "current limiting regulator" seems to be adjusted closed or very near closed.

I did not confirmed that the generator has a good output

Suggestions Jim

[Brandon]

Jim,

I would look at the generator output first with a volt meter. Run the jeep at mid RPM and see if the generator is actually charging. If it is charging then I would trouble shoot that regulator. Let us know and we can go from there.

Brandon

[artificer]

Make sure battery terminals are clean....corrosion is not always evident.
Not a great idea using a metal points file to clean up CVR points.... use glass or sand paper.
Hook a voltmeter [auto multimeter] to the positive & negative battery terminals.
Should read just over 6V engine not running or @ idle then rev engine & reading should go to about 7.4V @ around 1000 rpm. [12V just increase numbers proportionally].