 Intermittent Problem with Betty's car, I am at my wit's end on this one. |
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| Spoke |
 Dec 30 2014, 08:39 AM
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#61
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Jerry  Group: Members Posts: 6,978 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None 
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QUOTE(rgalla9146 @ Dec 30 2014, 09:24 AM)  A little late and a bit off topic but..... Disconnect the alternator and run the car ? Doesn't that damage the alternator ? Yes it is a possibility if the engine is running. It is called a Load Dump and is normally associated with disconnecting the battery since batteries receive most of the maintenance and battery cables/terminals can become corroded/oxidized. In this case, I think he only disabled the alternator by removing the control voltage to the armature. No issues here. I agree with Dave to look at the battery/alternator voltage with an oscilloscope. Voltmeters are great but can't show any voltages that are moving or spiking quickly. |
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| ClayPerrine |
Dec 30 2014, 03:22 PM
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#62
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Life's been good to me so far..... Group: Admin Posts: 15,438 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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QUOTE(rgalla9146 @ Dec 30 2014, 08:24 AM) A little late and a bit off topic but..... Disconnect the alternator and run the car ? Doesn't that damage the alternator ? Nope. Just turns it off. It will just run on the battery at that point. |
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| Spoke |
Dec 30 2014, 08:03 PM
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#63
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Jerry Group: Members Posts: 6,978 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None
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QUOTE(ClayPerrine @ Dec 30 2014, 04:22 PM) It will just run on the battery at that point. And you've found that it runs correctly with out the alternator providing energy but stumbles with the alternator powering the car, correct? |
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