No power Please Help
Thread Starter
Advanced
Joined: Apr 2018
Posts: 59
Likes: 2
No power Please Help
OK So I started my 1975 it was running. Car shut off no power whatsoever. Noticed some smoke from under hood. Opened the hood and noticed the alternator power bolt had come completley out and was touching the alernator. We replaced the alternator and still nothing. The battery has charge and still nothing. Anyone have any ideas for me?Any help would be greatly appreciated.
Thanks Lisa
Thanks Lisa
Racer
Joined: Oct 2017
Posts: 312
Likes: 64
From: Henry county ohio
My best guess is you burned a fusible link.
I think there is a fusible link in the alternator harness about 2 feet from the alternator.
You will need a test light, maybe a wiring diagram, and some patience.
Also helps to know a little about electricity and how to read a wiring diagram.
There is a post here under c3 that offers free diagrams.
I think Willcox has some tech info on their website.
Good luck
I think there is a fusible link in the alternator harness about 2 feet from the alternator.
You will need a test light, maybe a wiring diagram, and some patience.
Also helps to know a little about electricity and how to read a wiring diagram.
There is a post here under c3 that offers free diagrams.
I think Willcox has some tech info on their website.
Good luck
Thread Starter
Advanced
Joined: Apr 2018
Posts: 59
Likes: 2
My best guess is you burned a fusible link.
I think there is a fusible link in the alternator harness about 2 feet from the alternator.
You will need a test light, maybe a wiring diagram, and some patience.
Also helps to know a little about electricity and how to read a wiring diagram.
There is a post here under c3 that offers free diagrams.
I think Willcox has some tech info on their website.
Good luck
Could you describe what the fusible link looks like?
I think there is a fusible link in the alternator harness about 2 feet from the alternator.
You will need a test light, maybe a wiring diagram, and some patience.
Also helps to know a little about electricity and how to read a wiring diagram.
There is a post here under c3 that offers free diagrams.
I think Willcox has some tech info on their website.
Good luck
Could you describe what the fusible link looks like?
Melting Slicks
Joined: Feb 2018
Posts: 2,326
Likes: 721
From: Marietta GA
It is a special type of wire that will melt or break (a circuit) if there is a short. NAPA sells fusible link wire that you can cut out the part that is burnt/broken and solder in the new fusible link wire. You will need to know the wire gauge size for the correct replacement. I believe the size may be found in the Chevrolet Service Manual for your specific year. Maybe you could get help from a friend with electrical/ electronics background.
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Le Mans Master
Joined: Aug 2006
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From: mount holly NC
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The free internet schematic will not help in your case as it does not show the location of the fusible links, you will need a GM 1975 Service Manual.
https://docs.google.com/viewer?a=v&p...WRiNTdjNjdkNTQ
https://docs.google.com/viewer?a=v&p...WRiNTdjNjdkNTQ
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
Fusible links are GREAT for protecting the things for which they were intended. Same with fuses. Same with circuit breakers. But, if you think that they are all "interchangeable", you don't really understand any of them or when & where they should be used.
Race Director
Joined: Jul 2015
Posts: 13,082
Likes: 3,399
From: SW Florida.
All 3 go to open circuit with too high an amp flow. All 3 pass current with little to no resistance until that threshold is met. There are no fuses or fusible links in aircraft. Just breakers. They stopped using fusible links in cars. And most car manufacturers never used them.