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Tool Talk Discussion Forum

Re: pulsing ammeter

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Author  [Modern View]

12-19-2013 09:55:31

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ASSUMING the belt is not slipping,do you have it wired correctly with the #2 "Voltage Sense" terminal connected to the large output stud, or, even better, to a point nearer the battery, such as the starter solenoid's battery cable terminal and the #1 "excite" terminal connected to an idiot light or fed from "ignition power" through a resistor or diode?

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dale kahler

12-19-2013 12:25:25

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 Re: pulsing ammeter in reply to Bob, 12-19-2013 09:55:31  
The belt is new and the pulley is the correct pitch and width and is also new. I actually bought a new 2 1/2" pulley with a 5/8" bore, then did some lathe work boring it to the required .670" bore and machining off the extra step. The belt is tightened enough so the belt can be depressed the same ammount as its width, this isn't my first rodeo. Yes the voltage sense terminal is connected to the output stud. The excite wire is run through a diode also. The alternator plug-in is new, the alternator has been rebuilt, but that doesn't mean everything is working properly. Obviously I am missing something and have considered alternator internal issues even though I rebuilt it. I have had the battery tested, it also is new. Ignition switch has also been replaced as it was long over due, this problem existed before the switch was replaced also. Thanks to everyone and their comments, we'll see what happens and I'll let you know what I find out.

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12-19-2013 14:15:38

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 Re: pulsing ammeter in reply to dale kahler, 12-19-2013 12:25:25  
dale, stick a small metal probe/screwdriver/awl/whatever into the alt "D" hole to bypass the VR & force full output & observe ammeter under those conditions.

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12-19-2013 12:53:02

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 Re: pulsing ammeter in reply to dale kahler, 12-19-2013 12:25:25  
Sounds like time to pull the alternator off and take it to an auto parts tore and have it checked on there test machine. All it takes is one small thing getting ad to make one not work as well as it should

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