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Alternator question on 1973 BB

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Old Jun 10, 2006 | 05:40 PM
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Default Alternator question on 1973 BB

Hello,
I had a problem the other day with the battery going dead on my 1973 big-block. I had the local shop check both the alternator and battery and they said both were working fine. I then noticed that the stud on the alternator that the positive batter lead hooks-up to seems to be loose. It can be rotated in place and also pulled out about 1/16". I had my girlfriend watch the battery gauge as I did this and it would spike up when I moved the stud. This doesn't sound usual to me at all but I wanted to check and see if the stud is supposed to have some movement in it before I ordered a new alternator.
Thanks in advance for any help.
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Old Jun 10, 2006 | 08:55 PM
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There should be no movement. The stud has come loose inside. Its a simple fix, but you will need to take it apart to get it.
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Old Jun 10, 2006 | 09:16 PM
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Cool, glad to know I don't have to buy a whole new alternator. Thanks for the quick answer to my question.
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Old Jun 10, 2006 | 09:30 PM
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be carefull when you reassemble the stud back into the case, if you over torq te stud it can short against the case
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Old Jun 10, 2006 | 09:37 PM
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Thanks for the warning, I'll take it easy.
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