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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#87625 10/08/2002 9:15 PM | Joined: Sep 2002 Posts: 9 Member | | Member Joined: Sep 2002 Posts: 9 | Hi, I have a 54 GMC 100 with a 248 engine and I believe all or mostly all original type equipment. I'm new to all this and would like some advice. I have a new 6 volt battery and the truck starts with no problem. However the ammeter appears to read the opposite that I would expect. When the engine is running it moves to the left (-) and if I turn the lights on it moves back toward the middle. If the engine is not running and I turn the lights on it moves to the right (+). Shouldn't it be the other way around. I checked the voltage on the battery and it read 7 when the truck wasn't running and about 8.7 when it is running. Does this mean the system is charging okay? I also tried repolarizing the generator. Thanks for any help | | |
#87626 10/08/2002 9:38 PM | Joined: Jul 2000 Posts: 504 Member | | Member Joined: Jul 2000 Posts: 504 | Your GMC truck is positive ground. That means the plus terminal of the battery should be grounded to the frame.. Is it hooked up that way ?
Bill M
53 GMC Hydra-Matic
Home Page
http://home.comcast.net/~bd97/index.html
When you argue with a fool, two fools are arguing..
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#87627 10/08/2002 9:50 PM | Joined: Sep 2002 Posts: 9 Member | | Member Joined: Sep 2002 Posts: 9 | I'm not sure. I will check it out. Thanks for the suggestion. | | |
#87628 10/09/2002 2:42 PM | Joined: Sep 2002 Posts: 9 Member | | Member Joined: Sep 2002 Posts: 9 | That was the problem. The battery was not connected properly. Thanks again | | |
#87629 10/09/2002 10:54 PM | Joined: Jul 2000 Posts: 504 Member | | Member Joined: Jul 2000 Posts: 504 | Glad to see you got it straightened out..
Bill M
53 GMC Hydra-Matic
Home Page
http://home.comcast.net/~bd97/index.html
When you argue with a fool, two fools are arguing..
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#87630 10/11/2002 4:38 AM | Joined: Feb 2001 Posts: 1,897 Member | | Member Joined: Feb 2001 Posts: 1,897 | Glad to see you have it (properly) GROUNDED out 
There is enough good in the worst of us and enough bad in the best of us that it does not behoove any of us to criticize the rest of us.
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Be yourself. If you are ever lost, It will be much easier to find yourself if you know who you are!
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