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Discussion Topic:
Alternator
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51woodie |
07-15-2019 @ 1:47 PM
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Senior
Posts: 510
Joined: Jan 2017
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silverchief I struggled with my stock '46 charging as well. As there are no experts in my area I cheated and installed a Powermaster 6V 60A + ground alternator that is a bolt on unit c/w pulley. I got mine from Bob Drake, but Summit has better pricing now. I ran a #6 wire from the alt output to the battery side of the starter solenoid and a ground wire to a manifold bolt. I taped up the original gen wires and tucked them under the alternator and left the regulator I place so things look original. I could have done a different connection on the charging wire so there is an indication on the ammeter, but I have had no problems after two summers of fairly regular driving. The light are bright at night and don't go dim at idle. https://www.summitracing.com/int/parts/pwm-82016/overview/
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37RAGTOPMAN |
07-15-2019 @ 1:19 PM
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Senior
Posts: 1942
Joined: Oct 2009
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if your GENERATOR and regulator is working correctly, you should have no problems, the REG should COMPENSATES for currant draw , like the lights and radio,when you turn them on and should maintain the battery at full charge, if it does not there is a problem with the REG, or generator is weak, it might be dirty from sitting, if it is a 30 amp generator it should put out 30 amps, if needed turn on all lights, radio ,etc, at idle it should read discharge. rev the engine it should read charge, if the generator is good and also the regulator., my question, when you installed the generator and regulator, did YOU POLARIZE THEM ? hope this helps 37RAGTOPMAN
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silverchief |
07-15-2019 @ 10:37 AM
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Senior
Posts: 518
Joined: Oct 2009
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Previously mentioned reoccurring problem with my stock 46. After driving about a week sometimes the starter is to weak to turn the engine over even though the battery may show very low, or may show near full charge. Assumed my short slow trips to coffee were not allowing the generator to put enough charge back into the engine to overcome the power needed for repeated starts. I had the generator rebuilt about 3 years ago by a reputable shop. Putting a test light between a disconnected neg cable and that post shows no drain At slow speed, my amp meter shows just above neutral. Sitting at idle, if I turn the lights on, the meter shows strong discharge, but increasing to fast idle brings it right back up to where it was. Same using the radio as a draw. However, my new expensive battery tester shows no charging whatsoever taking place. Following instructions in thread of Tom O 7-5-17 I used a volt meter at the regulator to observe not running and fast idle output. In both instances both readings were slightly below what they should be. I haven't tested the starter but don't really suspect it because when the battery is good it acts strong. I have another alternator which I believe is good and could switch them but thought I would ask for comments first.
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