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What is this wire for ?

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Old Apr 14, 2010 | 09:35 AM
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Default What is this wire for ?

Have an all original '76. Replacing the ORIGINAL negative battery cable, which is just 1 heavy cable. However, the replacements for a '76 from both common internet suppliers shows a smaller gauge wire also coming out of the terminal connection. Why, when my original cable does not? What is the smaller wire suposed to connect to?? I guess I can just coil it up and wrap it unused.
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Old Apr 14, 2010 | 10:50 AM
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Define "common internet suppliers." Sounds like you have the wrong cable. Try Willcox for a correct one. Some automtovie parts places can make a new cable for you if you have the original to use as a guide.

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Old Apr 14, 2010 | 10:54 AM
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Maybe should have said "common Covette suppliers" ...Ecklers and Mid-America. I would think they should know something about such parts. I'll look at Wilcox, ...but still curious what the heck that wire is supposed to attach to.
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Old Apr 14, 2010 | 10:57 AM
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The Willcox part shows the same puzzling wire for 76-82.
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Old Apr 14, 2010 | 11:28 AM
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Originally Posted by Green76L48
Have an all original '76. Replacing the ORIGINAL negative battery cable, which is just 1 heavy cable. However, the replacements for a '76 from both common internet suppliers shows a smaller gauge wire also coming out of the terminal connection. Why, when my original cable does not? What is the smaller wire suposed to connect to?? I guess I can just coil it up and wrap it unused.
The "extra" ground wire is noted on the 1982 wiring diagram. It is associated with RPO codes for A/M F/M Stereo Radio with Cassette / 8 Track / CB.

I guess that rather than having to make and stock a unique 1982 part, the manufacturers chose to make a service replacement applicable to several years.
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Old Apr 14, 2010 | 12:33 PM
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Originally Posted by mapman
...

I guess that rather than having to make and stock a unique 1982 part, the manufacturers chose to make a service replacement applicable to several years.
Agreed.

Not an uncommon practice from the best of suppliers AND there are many for Corvette, alone.
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Old Apr 14, 2010 | 12:57 PM
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Seems like every battery cable I've replaced the last few years has that extra wire say #14 with a butt connector on the end regardless of purveyor. I'm guessing it's to allow a simple connection to the battery without having to use the nut/bolt directly to the battery post.
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Old Apr 14, 2010 | 01:24 PM
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If that is the negative cable from the battery, then the 'pigtail' on the other end is to hook to some accessory that requires a ground (ie, radio, sound system, BBQ grill whatever). If you don't have an accessory to connect it to, you could just cut it off or feed it back into the battery box and wind it up until you have a need for it.
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Old Apr 14, 2010 | 01:52 PM
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Thanks for all the great comments. I don't use this forum nearly as much as I should to keep the old girl running (the Vette, that is. Not my wife).
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Old Apr 14, 2010 | 02:20 PM
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I'm not saying I know this for sure but when I bought my battery disconnect switch it came with a small wire (with in line fuse) as well.

The purpose of that wire is so you could disconnect the battery with the switch and use the small wire for a little power to maintain the clock and radio stations. The fuse in the wire is so light that if there was a short in the car it would trip the fuse way before a wiring fire could ever be started. Since I switch off the battery every time I leave the car it wouldn't be impractical to reset everything again so I just leave the clock and radio unset. The extra wire is hanging on a hook in the garage.

That seems like a better option than using this gizmo to maintain radio & clock settings.

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Old Apr 14, 2010 | 05:36 PM
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Originally Posted by 7T1vette
If that is the negative cable from the battery, then the 'pigtail' on the other end is to hook to some accessory that requires a ground (ie, radio, sound system, BBQ grill whatever). If you don't have an accessory to connect it to, you could just cut it off or feed it back into the battery box and wind it up until you have a need for it.
It's always there if you need it further down the road.
Ed
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Old Apr 14, 2010 | 05:44 PM
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Hi 7T1,
Do you have a part # or supplier for the Corvette BBQ grill? Was it a factory option or dealer installed?
Regards,
Alan
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Old Apr 14, 2010 | 10:21 PM
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Originally Posted by Alan 71
Hi 7T1,
Do you have a part # or supplier for the Corvette BBQ grill? Was it a factory option or dealer installed?
Regards,
Alan
Most were dealer installed on the rear decks. Some people refer to them as "luggage racks". You just open the fuel filler door and toss a match in.
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