76 amp meter problems
Thread Starter
Burning Brakes
Joined: Aug 2005
Posts: 751
Likes: 0
From: Lufkin Texas
76 amp meter problems
Checked the alt. seems to be working ok. Read the voltage on the back of the gauge had 14 on one side and 11-12 on the other, does this mean the gaude itself is bad since Im reading voltage at both terminals of the gauge?
Racer
Joined: Mar 2006
Posts: 366
Likes: 1
From: Houston Texas
Disconnect the gauge and check it with an ohm meter. Should read a dead short. If not, the winding has burned open. I had to re-wind my gauge twice so far. The gauge wire will burn before a fuse blows when you ground one side by accident 
btw, I found the correct size green wire at radio shack for the rewind.
btw, I found the correct size green wire at radio shack for the rewind.
Racer
Joined: Jul 2006
Posts: 266
Likes: 1
From: S.E. Michigan
St. Jude Donor '07-'08-'09-'10
Instructor
Joined: Oct 2006
Posts: 219
Likes: 0
From: Jupiter FL
Disconnect the gauge and check it with an ohm meter. Should read a dead short. If not, the winding has burned open. I had to re-wind my gauge twice so far. The gauge wire will burn before a fuse blows when you ground one side by accident
btw, I found the correct size green wire at radio shack for the rewind.
btw, I found the correct size green wire at radio shack for the rewind.
One way to avoid this is to put a 2 amp in-line fuse in. Saves the extra work of having to rewind a burnt gauge.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
Racer
Joined: Mar 2006
Posts: 366
Likes: 1
From: Houston Texas
Less expensive to rewind the gauge than to buy a replacement if you have soldering iron/gun, solder, etc. You can drill out the rivets that hold the housing, rewind the coil (12 loops with correct gauge green wire for ammeter if I remember correctly), replace the rivets with small black bolts from the rc model hobby shop and you're back in business.
Thread Starter
Burning Brakes
Joined: Aug 2005
Posts: 751
Likes: 0
From: Lufkin Texas
Thanks for the info.
Less expensive to rewind the gauge than to buy a replacement if you have soldering iron/gun, solder, etc. You can drill out the rivets that hold the housing, rewind the coil (12 loops with correct gauge green wire for ammeter if I remember correctly), replace the rivets with small black bolts from the rc model hobby shop and you're back in business.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,114
From: Crossville TN
The gauge reads in amps....but it is really a very low voltage voltmeter. It actually reads differential voltage between two 12v. power lines. A length of wire in the circuit acts as a current shunt so that it is calibrated to read amp draw(or charge). Anyway, a 1.5v battery will peg the meter...and burn it out if left on for more than a second or two. It is a good way to determine if the meter is working or not. You should read something in the 12v range at either ammeter terminal on a working system.