C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Negative Ground Cable attachment problem

Thread Tools
 
Search this Thread
 
Old Jan 7, 2007 | 09:37 PM
  #1  
davidbr93's Avatar
davidbr93
Thread Starter
Heel & Toe
 
Joined: Jan 2007
Posts: 18
Likes: 0
From: Cincinnati Ohio
Default Negative Ground Cable attachment problem

Today I went to loosen the neg ground cable at the frame and found it to spin freely but not detach. After spending some time trying to extract the bolt I decided to cut it. My question is how to replace the bolt and nut it attaches to. There is little access to that part of the frame and I'm wondering how get a nut positioned over the hole. Has anyone run into this problem before?
Reply
Old Jan 7, 2007 | 09:45 PM
  #2  
tellcom2001's Avatar
tellcom2001
Instructor
 
Joined: Mar 2006
Posts: 246
Likes: 1
From: west melbourne florida
Default

on my 79 vette my ground is above the starter. but i added a second ground to the block next to the oil pressure sending unit and bolted it to the frame. i say find a new spot on the frame to bolt it to and add some extras
Reply
Old Jan 7, 2007 | 09:59 PM
  #3  
Go Vette Go's Avatar
Go Vette Go
Melting Slicks
Supporting Lifetime
Veteran: Air Force
25 Year Member
Liked
Community Favorite
 
Joined: Dec 2000
Posts: 3,363
Likes: 303
From: Lansdale 19446 PA
2024 C3 of the Year Finalist- Unmodified
St. Jude Donor '10-'11, '15, '19
Default

Which ground cable are you talking about? There are many.

If you are referring to the ground cable directly from the battery, I don't believe that has a nut behind it - just threaded into the cross member. Should have a star washer between the cable & the cross member too.
Reply
Old Jan 7, 2007 | 10:26 PM
  #4  
big_G's Avatar
big_G
Le Mans Master
15 Year Member
 
Joined: Jul 2005
Posts: 5,752
Likes: 4
From: Austin Texas
Default

Try to get a nut back there, don't forget the star lock-washer.
Reply
Old Jan 7, 2007 | 10:35 PM
  #5  
68/70Vette's Avatar
68/70Vette
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2004
Posts: 40,338
Likes: 786
From: Redondo Beach, California
Default

On my 68, with a ZZ4 and ministarter, I decided not to use a ground strap from the starter to the motor mount, which is the stock routing. Instead, I drilled a hole in the frame near the ministarter, tapped the hole, and now I used that the as the main engine to frame ground routing. I think you can do something like this also if you want.
Reply
Old Jan 8, 2007 | 07:58 AM
  #6  
77BuffaloVet's Avatar
77BuffaloVet
Racer
10 Year Member
 
Joined: Jul 2003
Posts: 455
Likes: 0
From: Buffalo New York
Default

Originally Posted by vetteman1978
Which ground cable are you talking about? There are many.

If you are referring to the ground cable directly from the battery, I don't believe that has a nut behind it - just threaded into the cross member. Should have a star washer between the cable & the cross member too.
If this is the one you are talking about, there is not a nut. The bolt threads into the cross member. If it spins freely you will have to find another place to bolt it to the frame or try a bigger bolt. I went up one size in bolts and drilled out the connector to fit. As long as the metal is clean the bolt is tight it will work fine.
Reply
Old Jan 8, 2007 | 09:30 AM
  #7  
bobs77vet's Avatar
bobs77vet
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Default

mine was a nut and bolt and i was able to get at both. you could always drill a new hole and reposition it.
Reply
Old Jan 8, 2007 | 10:48 AM
  #8  
wrc69v's Avatar
wrc69v
Instructor
 
Joined: Aug 2005
Posts: 243
Likes: 0
Default

both attachment points for a ground cable (engine to frame, battery to frame) can be re-threaded with a tap and die set, then use a bolt that fits that tap and your done. I did this 5 years ago and still have the same battery and no electrical grounding problems.
good luck!
Reply

Get notified of new replies

To Negative Ground Cable attachment problem

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-1

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski




All times are GMT -4. The time now is 11:49 AM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE