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

alltinator question

Thread Tools
 
Search this Thread
 
Old Jun 4, 2014 | 11:04 PM
  #1  
relic1864's Avatar
relic1864
Thread Starter
Instructor
 
Joined: Jul 2010
Posts: 102
Likes: 0
Default alternator question

The amp guage on my 76 vette started jumpimg all the way to the right on the guage then back down then way back up to the right on the guage. At a redlight it goes toward the left or discharging side on the guage. I understand the voltage regulatior is built into the alltinator. I had the alltinator checked when it did this about 2 months ago at auto zone on their testing machine and they said the alltinator checked ok. Question I have is if the voltage regulator inside the altinator is going bad will the alltinator still check good. After I had it checked that first time I put it back on and it worked fine till now. What do you think is happening.

Last edited by relic1864; Jun 7, 2014 at 11:06 PM. Reason: spelling was wrong
Reply
Old Jun 4, 2014 | 11:40 PM
  #2  
CaseyJones's Avatar
CaseyJones
Melting Slicks
 
Joined: Jul 2010
Posts: 2,503
Likes: 33
From: McGrady NC
St. Jude Donor '15-'16
Default

Their checkup at The Zone should have checked it all. I would suspect loose cables or bad grounds somewhere. Did you check the belt to make sure it wasn't slipping?
Reply
Old Jun 4, 2014 | 11:44 PM
  #3  
Peterbuilt's Avatar
Peterbuilt
Le Mans Master
15 Year Member
 
Joined: Aug 2006
Posts: 7,411
Likes: 1,550
From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
Default Good call to check the belt first.

Then check the wires and connections where they attach to the alternator.
Reply
Old Jun 5, 2014 | 08:51 PM
  #4  
7T1vette's Avatar
7T1vette
Team Owner
15 Year Member
Community Builder
Community Influencer
Top Answer: 5
 
Joined: Jan 2006
Posts: 37,637
Likes: 3,112
From: Crossville TN
Default

You likely have a problem with wiring or connector(s) going to the ammeter.
Reply
Old Jun 7, 2014 | 11:09 PM
  #5  
relic1864's Avatar
relic1864
Thread Starter
Instructor
 
Joined: Jul 2010
Posts: 102
Likes: 0
Default

The small stud comming out of the alternator seemed to be stripped because the nut wouldn't tighten up it just got snug then kept turning. But it stopped jumpingway over and back. Will take it to an outo electric shop and get a new stud put in
Reply

Get notified of new replies

To alltinator question





All times are GMT -4. The time now is 12:59 PM.

story-0
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-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
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
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE