Author Topic: alternator issues on a 1965  (Read 4037 times)

katsin

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alternator issues on a 1965
« on: September 28, 2010, 06:34:34 PM »
Hi there...I have a 1965 Hardtop Mustang. Here's the issue...the battery keeps draining! The alternator was replaced and so was the starter sylenoid (sp?) and yet every battery put in drains immediately. When a new battery is installed, the car starts and drives fine. The next day the battery is once again dead and I've tried various brands to rule that out. I then installed a new fuse regulator and I am still having the same problem. Do I yank the alternator again to have it tested, or is there something else that would cause this? I'm at my wits end w/ this.

Thanks for reading.  :)

Soaring

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Re: alternator issues on a 1965
« Reply #1 on: September 28, 2010, 07:23:34 PM »
Did you replace the Voltage Regulator when you replaced the alternator?  Try taking off the positive cable at night and hook it back up in the morning and see what you have. 

katsin

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Re: alternator issues on a 1965
« Reply #2 on: September 29, 2010, 10:13:21 AM »
@Soaring...no I did not replace the fuse regulator at the same time. Because there was an issue with the battery daining the shop said I should replace the fuse regulator. I'm thinking the rebuilt alternator just installed is bad. Am I removing the positive cable from the battery?

Thank you :-)

Soaring

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Re: alternator issues on a 1965
« Reply #3 on: September 29, 2010, 12:35:40 PM »
Yes....remove the positive cable at the battery at night to see if you have a dead cell.  I would even take the battery to a car parts place to have them check it. 

katsin

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Re: alternator issues on a 1965
« Reply #4 on: September 29, 2010, 12:52:34 PM »
I will do so. Thank you. BTW...this is the 4th battery it's killed!

Soaring

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Re: alternator issues on a 1965
« Reply #5 on: September 29, 2010, 01:46:05 PM »
Then it's pretty obvious it's not the fault of the battery.  I would take the alternator off and have it checked, and if it is good, I'd hook up a multi-meter and check to see if you are getting a voltage drain  when the engine is stopped.  If the alternator turns out to be bad, just replace it along with the voltage regulator.  (You always replace the VR when you replace the alternator) If that doesn't work, then you have a source of drainage from somewhere else, like a glove box  or trunk light left on.  Inspect all the wiring for a frayed positive wire that is grounding out. 
My suspicion, is that your alternator is shot. 
But, it may be something else.  Review the article to help find a parasitic drain source.  The pulling of each fuse one at a time is most likely your best bet for locating the parasite. 
http://www.wikihow.com/Find-a-Parasitic-Battery-Drain

josette

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Re: alternator issues on a 1965
« Reply #6 on: December 14, 2010, 01:02:37 AM »
How's your coil??

Soaring

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Re: alternator issues on a 1965
« Reply #7 on: December 14, 2010, 04:38:00 AM »
Welcome to the site Josette.  It's always welcome to have a new member chime in. 

 

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