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91 alternator problems

the alternator wasn't exciting. Rather than trace the excite wire, rip the dash apart, and replace the battery light bulb... I chose to run a new plug and wire to excite the alternator. I put it on a switch to make life easy, and just need to run the correct resistor so I don't fry the...
- grawrant
- Post #6
- Jan 8, 2023
- Forum: Engine Performance + Maintenance
G
91 alternator problems

I upgraded all grounds, the entire harness for custom headlight and taillight housings/lights, and all new power leads. Much thicker wire for everything. Also running a big battery off a semi with a larger alternator.
- grawrant
- Post #5
- Jan 8, 2023
- Forum: Engine Performance + Maintenance
G
91 alternator problems

I should know that the alternator now charges without the Exciter plugged in at all, so I know that the regulator inside the alternator is bad. I've disconnected the battery for an hour, came back and it still overcharges the battery.
- grawrant
- Post #2
- Jan 6, 2023
- Forum: Engine Performance + Maintenance
G
91 alternator problems

So I installed a larger alternator because I was going through batteries running my hydraulic pump for my plow. The alternator had some wires melt inside, not sure what happened but I want to assume it was just a bad alternator. Second alternator installed, not charging the battery. I went...
- grawrant
- Thread
- Jan 6, 2023
- Replies: 5
- Forum: Engine Performance + Maintenance