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02-04-2019, 03:39 PM
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#1 |
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Registered User
Join Date: Mar 2015
Location: Jacksonville, Florida
Posts: 66
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New battery and new alternator-DEAD
I have a 1961 GMC pickup with a 305 V6. I installed a new battery and a new alternator. Started it up and watched my volt gauge go from 12 to 0. Anyone have any idea’s why this would happen? Thanks a lot!!
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02-04-2019, 05:03 PM
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#2 |
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Senior Member
 
Join Date: Dec 2018
Location: yamhill OR
Posts: 910
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Re: New battery and new alternator-DEAD
Are you using the original style voltage regulator or are you using a newer alternator with an internal regulator?
__________________
1965 chevy c20 292 4speed http://67-72chevytrucks.com/vboard/s...d.php?t=777601 1976 chevy c10 250 4speed http://www.67-72chevytrucks.com/vboa...d.php?t=787037 1978 chevy c20 350 4speed 1998 chevy c1500 4.3L 5speed 2002 Chevy s10 4.3L auto 4x4 Plus a Mercury & some Fords... To many projects! |
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02-04-2019, 06:02 PM
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#3 |
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Moderator
  
Join Date: Aug 2011
Location: China Spring, TX
Posts: 7,280
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Re: New battery and new alternator-DEAD
I once installed an internal regulated alternator in a truck that used an external regulated alternator. It worked. Until I got to the 1st car show I ever went to and there I was stuck.
 Yep, ya live and learn. Of course this was way before the internet.
__________________
Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats? |
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02-04-2019, 08:00 PM
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#4 |
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Registered User
Join Date: Mar 2015
Location: Jacksonville, Florida
Posts: 66
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Re: New battery and new alternator-DEAD
Hahahaha! I’m using internal one. I just found the problem. A exposed wire was grounding out everything but thanks for replying.
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02-05-2019, 06:15 PM
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#5 |
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Registered User
Join Date: Jan 2009
Location: Burbank, CA
Posts: 3,619
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Re: New battery and new alternator-DEAD
Sorry to hijack this thread but do I need to run a ground if I have an internally regulated one wire alternator?
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02-06-2019, 04:39 AM
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#6 |
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Registered User
Join Date: Jan 2013
Location: Calgary Alberta
Posts: 1,170
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Re: New battery and new alternator-DEAD
I think you want continuity from the alternator case to the battery negative. Probably you already have that through various grounds.
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