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I have charging issues with my truck.Truck.is a 1952 F-1 completely stock with 6 volt system.The problem is INTERMITTENT!I can watch my battery gauge and tell when this is happening. I hear a distinct like ratteling noise under dash up in drivers corner (circuit breaker area).I changed the voltage regulator because I thought it was just cutting out and end and did not help.Only other thing I thought about changing is the generator?Any suggestions.Sorry for long post. Russ
My first guess would be your generator is not putting out the needed voltage. Maybe the belt is loose or the generator needs new brushes? You need to check the voltage its putting out, I cant remember since I went to 12 volt a few years back but I'd guess you should see 7-8 volts output to charge your 6 volt battery. I'm sure someone else will provide better info but thats my thought.
I had a similar issue, we had to push start after going out to dinner one night and barely got home on what was left in the battery.
I replaced the brushes and followed the seating procedure in the maintenance manual. I also took my generator and regulator to a shop where they adjusted the regulator and tested the generator.
I had an intermittent charging problem that got progressively worse, and it turned out to be a weak breaker. Good luck.
Jim
Jim,are you talking about the breaker under dash on drivers side?I checked with several suppliers and not seeing any?I guess I will pull generator first for check and this breaker would be next?
Jim,are you talking about the breaker under dash on drivers side?I checked with several suppliers and not seeing any?I guess I will pull generator first for check and this breaker would be next?
There’s 2 breakers, a 15A and a 30A. You’ll find them at your local auto parts stores.
Bob is correct. The breakers are under the dash on the left side close to the starter button. The failing breaker was affected by heat. When it was cool, it worked. As it heated up, it didn't. So when the ignition was off while making an adjustment to the voltage regulator, or messing with the grounds or something, the breaker cooled, and on start up, the charging system would work perfectly--and I was fooled into thinking whatever I had just done fixed the problem. The "fix" never lasted too long though. It was a very frustrating situation.
I am still scratching my head on this one.I have a new voltage regulator installed,the generator has been completely rebuilt.This charging situation is still Intermittent.I noticed my battery gauge was fluctuating really bad at one time.I polarized the regulator.What else is there to check?
I am still scratching my head on this one.I have a new voltage regulator installed,the generator has been completely rebuilt.This charging situation is still Intermittent.I noticed my battery gauge was fluctuating really bad at one time.I polarized the regulator.What else is there to check?
Sounds like the diodes in the alt are the issue.... the regulator might be doing this as well.
I am still scratching my head on this one.I have a new voltage regulator installed,the generator has been completely rebuilt.This charging situation is still Intermittent.I noticed my battery gauge was fluctuating really bad at one time.I polarized the regulator.What else is there to check?
Earlier Jim, USCG Panel, mentioned the circuit breakers, did you replace them?
Are you sure it’s a charging problem and not a gauge issue? I was concerned that my gauge wasn’t working correctly so I purchased this gauge. I installed the current loop on the same wire that the panel gauge is on, but also connected the voltage wires to the ignition switch, it mounted it under the dash using some Velcro.
intermittent problems are the most difficult to diagnose. I’d go through every connection one by one, cleaning or replacing connectors, replacing breakers, replacing any wires that look suspect. It’s a fairly simply circuit so it shouldn’t be difficult to trace. If you don’t have the maintenance manual I can take pics of the section for you.
On my truck I eventually replaced the generator with a 6v positive ground alternator from powergen. It looks stock and eliminates the regulator. Unfortunately that won’t help you if the problem is in the wiring or breakers.
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