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Topic: got lucky, electrical

in Forum: C3 Electrical


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got lucky, electrical (1/3)
 8/16/22 2:49pm
RedwingvetteLifetime Member
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Waterford, MI - USA

Vette(s):
1973 Red coupe


Joined: 9/13/2002
Posts: 1735

Yesterday I went for a drive about 30 miles from home and back. On the way back I reached down to turn on the AC and everything went off.
Stuck in the middle of the road with 3 cars in front of me at a traffic light and I lost all electrical power.
Here's where I got lucky. I popped the hood and reached into the wire on the back of the alternator and check to see if it was loose. then I did the same at the horn relay.
Turned the key and the power was back on. I drove home with AC off.
This morning I went out to the garage and started the investigation.
I found the wire that was attached to the alternator was corroded and broken. 

This area of the wire was covered with heat-shrink from the factory so could not see it.

It was full of greenish corrosion. I cut the end off and the rest of the wire looks to be clean. I removed all the wires on the horn relay and cleaned the connectors and reattached them.
Now I have to check the fusible link at the starter, and I should be good.



|UPDATED|8/16/2022 11:49:45 AM (AZT)|/UPDATED|


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Brian - NCM Lifetime Member

73 coupe L48, Flat-top pistons, Performer RPM Heads, Crane Cam and roller rockers, Holley 650 vac sec. Performer intake,
3.55 gear BTO 200-4R trans,
Leather seats, Seatbelt Plus 3point seatbelts, Pioneer CD player
Magnaflow Exhuast System

Dewitt radiator and dual electric fans
Borgeson Steering box
 


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Re: got lucky, electrical (2/3)
 8/16/22 2:58pm
Adam WartellLifetime Member
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Eagleville, PA - USA

Vette(s):
Used to own a 1979 Corvette now owned by JB79


Joined: 11/1/2001
Posts: 17606

Thank you for sharing this. Glad it all worked out safely for you.

Hopefully your story will help others in the future.

 



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-Adam Wartell
NCM Lifetime Member #1222
Founder: C3 Vette Registry 
C4 Vette Registry, C6 Vette Registry

My first Vette, now owned by JB79:

Re: got lucky, electrical (3/3)
 8/20/22 10:25pm
Steevo
Limited Member
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San Diego, CA - USA

Vette(s):
'73 L48 Coupe, 383, M20, A/C, Electric Windows. Matterhorn White Jet-Glo w/ Dark Blue interior. Rochester, Edelbrock, Blackjack Ceramics, Borlas w/ 2.5" mandrel X over, Cooper Cobras on both OEM Steel and Aluminum Wheels.


Joined: 11/10/2013
Posts: 53

Yes, Thanks!

You got me thinking about solutions to my problem; Intermittently non-op of the Starter. Turn key to START and hear only a slight click and no Starter Solenoid activation. Repeat 2, 3, maybe 4 times and then Starter comes alive and Engine runs. A full battery charge helps, and the battery's 7 months old. Gonna check the connections/wires you mentioned and see what I can find wrong.

Much appreciated.

Steve



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