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| | | Forums66 Topics128,118 Posts1,056,646 Members48,450 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Nov 2001 Posts: 217 'Bolter | | 'Bolter Joined: Nov 2001 Posts: 217 | Hello all, I've been rewiring my '52 burb. It's been going relatively smooth. I've pretty much got everything wired up but, today I started the motor to see if the alternator is charging. It is charging but, when I turned the key off the motor continued to run. I' guess I have wired the alternator up improperly. I started and killed it with the key prior to connecting the alternator to the motor. I'm sure I could figure this out with the wiring diagram but, frankly, I'm ready to move on. Any suggestions on where I may have gone wrong?
I've installed the American Autowire Highway 15 Nostalgia with the original key and foot starter.
Thanks!! | | | | | Joined: Jul 2010 Posts: 592 Shop Shark | | Shop Shark Joined: Jul 2010 Posts: 592 | Are you running a three wire alternator? If so, you need to add a diode to the harness on the wire that goes to the ignition switch. That will solve the problem. You can do search to find out what diode to buy, then get it at Radio Shack. Very inexpensive. I soldered mine into the wire just before it enters the alternator plug. Or, if you are installing a 10SI three wire alternator, you can go to eBay and buy a pigtail that plugs into your alternator socket that has the diode installed for about $10.
Matt | | | | | Joined: Nov 2001 Posts: 217 'Bolter | | 'Bolter Joined: Nov 2001 Posts: 217 | Maybellene, Thanks for the info. I remember that from my '54, now that you mentioned that!! I'll see what I can round up. Thanks!! | | | | | Joined: Nov 2001 Posts: 217 'Bolter | | 'Bolter Joined: Nov 2001 Posts: 217 | Maybellene, I found the diode at Fry's Electronics for 99 cents. Thanks for the suggestion, it saved me time and money.
Again, this community saved the day!! Thanks
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