by Jay529 Tue Oct 16, 2018 2:55 pmMy alternator light just came on today. I pulled the battery cable off while it was running and sure enough it stalled. I figured I'd check here to see if there are any common issues with these that I should check first, and the best way to go about figuring out if it's the alternator, or wiring.
4 posters
Alternator light
Jay529- Number of posts : 47
Location : Drums pa
Age : 44
Registration date : 2016-07-17
vanny- Moderator
- Number of posts : 14775
Location : Ashburnham, MA
Age : 65
Registration date : 2012-09-22
Jay, I found this thread using the search tab for alternator where Donivan talks about a way to test for voltage...Hope it helps...
https://vintage-vans.forumotion.com/t49390-alternator-wiring-problems?highlight=alternator
https://vintage-vans.forumotion.com/t49390-alternator-wiring-problems?highlight=alternator
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Jay529- Number of posts : 47
Location : Drums pa
Age : 44
Registration date : 2016-07-17
Vanny, thanks! I'm going to try to get on it tomorrow after work
Barnabas- Vintage-Vans Listings Manager
- Number of posts : 2011
Location : Raleigh, NC
Age : 64
Registration date : 2011-01-16
In addition to the alternator, it could be the regulator. The old ones were adjustable.
donivan65- Governor
- Number of posts : 12220
Location : San Diego, California
Registration date : 2008-05-12
You can take that alternator off and have it tested like at Autozone,,,,,,you can unplug the regulator and put 12 volts to the white wire on the end of the connector and see if that starts the alternator charging again,,,,or just get rid of that old underpowered worn out system and put a 1 wire Chevy alternator on it,,,,,,,,
Jay529- Number of posts : 47
Location : Drums pa
Age : 44
Registration date : 2016-07-17
Guys, thanks for the info. I figured that since the engine dies as soon as I pull a battery cable off that the alternator must not be charging at all, so I bought a replacement alternator already. I was hoping to get it on today, but unfortunately that wasn't the case. I did use a 1 wire alternator on a Bronco I built years ago. Wish I would have thought of that before I bought the replacement 
