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12 volts?
Having an issue with charging. My gauge showed me charging at 13-14 volts, the alternator stater went bad and I had that repaired, bought a new circuit regulator, replaced the battery and ground cable and now the gauge is only reading just over 12 volts.......where am I missing what I had before?
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It sounds like the gauge is reading battery voltage only (no charging). Either something else is broken/not fixed, or something is not connected correctly. Without knowing more about your particular car/engine/alternator/charging system, I can't offer much more.
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What does your gauge read when your RPM's are above 2,000?
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Just because you put new parts in, it does not mean all parts are working. You could have gotten a bad part. You could have installed something incorrectly. You could have shorted and damaged a part during the install. I'm not trying to be mister negative here. We all make mistakes, and when things do not look right, odds are something is wrong.
I recommend verifying your voltage with a good multi meter, if you have access to one. See what the battery voltage is with key off. Then see what it is with the engine running. I'm thinking a battery should be a bit under 13 volts with the key off. With the engine running above idle, I would expect 13.5 volts give or take. I would check at the battery. If that is quite different than your gauge, then I would test again at the gauge to confirm if it is the gauge or the connections. |
John York built 351, new Pertronix igniter 2 with matching coil. I removed the Ford height set up per John and then I started having this problem.
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I would start with checking to be sure the alternator is working. With the key on take a voltage reading at the alternator, you should have 12 V. Once that is confirmed I would look at the connections at the voltage regulator, making sure you have continuity on all wires. Only a few things it can be. I had a similar issue and their was a fuseable link in my cable from the alternator to battery. That link was broken and hence no charging.
Phil |
If it's only showing 12 V it sounds like the alternator isn't receiving a signal to meet demand - meaning the voltage regulator may not be regulating. My experience with a bad VR was that the alternator defaulted to putting out a straight 12 V no matter what load was put on it. Fords based systems are kind of weird, the VR has to be excited to go into action.
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Ok I have replaced the voltage regulator twice, jumped the alternator over to check if it would push 16 volts on the gauge.....it did so that told me it was charging, I then replaced the field wire from the alt. to the vr.....nothing so I then I replaced the alt wire from the vr. to the solenoid...still nothing
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Mo Mars,
Based upon what you said, I think I would try a different battery. I recently had a brand new one fail right out of the box. Phil |
As I said before, we need more detail in order to provide more than "here's what happened to me" advice. There are several types of alternators. Perhaps this link will help.
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Quote:
I am not sure what the Ford height setup is, but when you removed that things started going bad, may need to reconsider putting that back in and seeing what happens? |
I had a fusible link in the alternator to battery feed which resulted in no charging. I would agree with checking continuity on wiring from VR to ALT and then battery to make sure you are not getting a drop somewhere in the circuitry.
Phil |
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