Recent content by mwd782

So I turned the truck on today with the alternator with open field (currently one brush broken) and began to overcharge the battery up to 16+ volts. Unplugged the VR and the same. It only went back to 12.8 v when I unplugged the red wire from the field terminal in the alternator. Is this normal?

Pulled the brushes and one fell apart. I'll get back here after the ones I ordered arrive. Thanks for all the help and patience.

I feel pulling the brushes may be beyond my skill/tool set. I'm currently using a remanufactured ACDelco alternator.

After doing proper between two points on ballast resistor reads 1.5 on 200 ohms Definitely no spark.

Thought I'd start it up and test again. When ignition going now there is no charge at battery. Just reads 12.4v which is same as engine off.

If I put one on battery negative and one on ballast resistors one reads 017 one reads 018 I think that you may be right that the meter is junk. Any suggestions on a replacement?

Which probes go where for this test? Key on or off?

This is exactly what happens. With all tests meter reads infinity. No continuity between terminals.

Here's the terminals

Tested out another VR with the meter. Reads 1.6 ohms at 20k setting. So I think the meter works.

When I put the meter together it reads 0.1 ohms when I put it on alternator field terminals and no continuity. Sorry about the cheap meter.

90% of ignition wiring redone.

Just want to state that the alt is new rebuilt and this problem existed with previous alt aswell

What would cause it to be open?

Shows 0.0 when probes are touching