Electrical Question
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Home away from home
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1st off I'd like to say thank you to everyone who helped out with my lighting questions a few days ago.
I've had my 1941 One-Twenty only a few weeks now, and decided I needed a battery tender for it. Last night when I went to connect the battery tender, I discovered that the battery had been installed negative ground, instead of positive ground. The attached picture shows the cable coming from positive terminal on the battery, connected directly to the starter solenoid. My questions is; Can I simply reinstall the battery in the correct positive ground orientation, and re-polarize the generator? Is there anything I should look out for? Thanks in advance, Chad
Posted on: 2014/1/8 9:46
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Re: Electrical Question
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Home away from home
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Owen,
Thank you for the help. I have been trying to remember how the ammeter was behaving when I drove it this past weekend, but cannot. This is my first vehicle with a generator. Is the easiest way to test this by turning on the ignition, and then the headlights, without starting the car? I assume it should show charging, if just the battery is installed reversed. If it shows discharging, then something else has been rewired, possibly the ammeter wires. I'll check it out this afternoon when I get home from work and see if it reads backwards. I read through this Form Post and it helped explain some too. I know for sure that wiring work has been done on the vehicle, as there are plastic wire looms, and zip ties holding wire bundles together, plus crimp on bullet connectors...I'm trying to work through things as needed, and not drive myself crazy. Chad
Posted on: 2014/1/8 11:21
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Re: Electrical Question
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Forum Ambassador
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Is the easiest way to test this by turning on the ignition, and then the headlights, without starting the car? I assume it should show charging, if just the battery is installed reversed. If it shows discharging, then something else has been rewired, possibly the ammeter wires
Yes, but no need to turn on the ignition, just the headlights will draw enough current to determine what you need to know. Don't forget to polarize the generator after you've reversed the battery but before you start the engine.
Posted on: 2014/1/8 11:40
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Re: Electrical Question
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Home away from home
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Owen,
I changed the battery polarity, and repolarized the generator, following a procedure posted on another post on these forums. The ammeter read correctly when I turned the key on, and turned on the headlights. Took it for a test drive and all seemed well. Thanks for your help, Chad
Posted on: 2014/1/8 18:36
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Re: Electrical Question
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Home away from home
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Be aware that voltage regulators are specific for either Pos or Neg ground. Usually stamped on the regulator. It has to do with the contact points in the voltage relay.
Jim
Posted on: 2014/1/8 19:26
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