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08-23-2011, 08:27 PM | #1 |
Senior Member
Join Date: Jul 2010
Location: Eau Claire, WI
Posts: 113
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Electrical questions
1. Car had been starting fine. One day I had a dead battery, just a faint glow from the headlights, nothing else. I tried to charge the battery with a small maintainer/charger with no luck. I took it to Batteries Plus, they tried to charge it but could not get over 5 volts so could not do a load test. I bought a new battery and installed it. I am running a 6 volt positive ground alternator. With the old battery the amp gauge would jump to about 15 amps at about 5 MPH and then gradually drop to about 2 amps. With the new battery I started the car and let it idle about 5-10 minutes. The amp gauge jumped to about 15 amps while idling. I took about a 7 mile drive and it stayed between 13-15. It would drop to about 8 with the headlights on low beam and 2 on high beam. I am not sure I should be driving it until I get this figured out. Any ideas would be helpful.
2. I have an old reproduction ahooga horn that I rebuilt. Without the car running it is very weak. With the car running and the alternator charging it sounds good. Is this normal? I don't remember how it acted with a generator. Could these be related problems? Thanks Howie |
08-23-2011, 08:40 PM | #2 |
Member
Join Date: May 2010
Posts: 74
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Re: Electrical questions
Sounds like the ground strap of the battery isn't making a good connection with the frame. Remove strap and grind off rust from the frame and reconnect.
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08-23-2011, 09:47 PM | #3 |
Senior Member
Join Date: May 2010
Location: Mpls, MN
Posts: 27,582
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Re: Electrical questions
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Your horn sounds typical. Are the bushings oiled and the commutator clean. My friend's horn was real weak until I layed some sandpaper on the commutator while it was spinning. All of a sudden it started speeding up and now it blows much better than my horn. |
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