Posted by John T on June 28, 2017 at 05:20:29 from (216.249.81.101):
In Reply to: Alternator issues.... posted by funtwohunt on June 27, 2017 at 20:00:15:
Fun, when you say " The battery still had 11.5 volts enough to start the engine"
I would say that was NOT a battery stabilized and at rest IE it was too soon after receiving that high charge.
FYI A "good" flooded lead acid battery AT REST AND STABILIZED FULLY CHARGED AT 77 DEGREES SHOULD READ 12.63 VOLTS....If its ONLY 12.5+ volts it's partly discharged. NOTE if your voltmeter isn't accurate that's your problem, below are correct voltages.
Those abnormal high voltages may be because the voltage regulators VOLTAGE SENSING CIRCUITRY isn't connected to monitor correct battery voltage so its running wide open or else its toast or simply not wired.
A possible short somewhere in the regulation or charging circuit could cause a high current draw. Maybe a short is overloading the alternator and all the current isn't getting to the battery itself??
I suppose some battery problems could possibly cause a high current draw, I would take the battery to a shop for a proper LOAD and voltage and specific gravity test to insure battery condition BEFORE SMOKING MORE ALTERNATORS.
Is this is three wire or a so called "one wire" alternator as it doesn't appear to be sensing battery voltage correctly. It may not be wired correct !!!!!!!!!!
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