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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Hotrodding Basics> Alternator issue
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Topic Review (Newest First)
09-04-2015 05:54 PM
89silverado454 I'll turn a wrench all day... But I absolutely hate wiring
Snow... I'm not ready! Iv only put about 20 miles on the vette sense I got it. Work out of town on a 2weeks on/2weeks off rotation. I probably only have about 4 weeks of time home to get this thing running good & enjoy it before I park it for the winter.
09-04-2015 05:50 PM
delawarebill
alt

perfect !!!!!!! that's the number i wanted.. u did good.. use a VOM meter to ck the wire and link.. see piece of cake...
now i just ask that u keep the snow up there.. that's gonna be harder..
09-04-2015 05:32 PM
89silverado454 Figured it out. Disconnected the bat wire from the alt, no power.
So either the wire is broke (unlikely) or a fusable link is toast (probably)

Used a jumper cable from the pos on the battery to the pos on the alt, 14.2-14.3 volts at the alt & battery.
09-04-2015 04:30 PM
89silverado454 I have no idea if this thing has a separate voltage regulator.
Tracked down a alternator in anchorage. Put it in the vet, checked the voltage at back of the alt this ones showing 54-55 volts.
09-04-2015 10:14 AM
delawarebill
alt

does it have a separate voltage reg ??? fire it up and measure the volts AT the battery. voltage at battery should be right around 14v. if reading 12v and u have a alt that has a built in reg then yes it's time to replace it.
09-04-2015 08:45 AM
89silverado454 so you think the alternator is bad.
hope I can find a new one, bought this one yesterday. tried 5 different parts stores and this was the only one I found in the state so far!
09-04-2015 06:52 AM
delawarebill
alt

i'll assume u don't have a separate voltage reg then.. diodes can die giving wacko readings.. what was the voltage at the battery when all this was going on ??
09-04-2015 02:56 AM
89silverado454
Alternator issue

1984 corvette crossfire 350

Alternator stopped charging the bat.
Checked voltage at back of alternator, shows 30 volts.. Not good.
Brand new alternator

What could cause this?

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