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Old 09-23-2007, 04:21 PM
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alternator help

Hello all,
I have a question on how to wire a particular alternator that I have. Please bear with me as I am new to working with anything electrical on my vehicles. I have a 53 ford f100 that I have never been able to get the charging system worked out. I have the attached alternator currently on the truck and would like to know how to wire it up. I was misinformed by the previous owner and would like to get this figured out. It says Delco Reman and the numbers that I can read are 566 37A and 12VNEG. It has a batt terminal that has a large yellow wire attached, a GRD terminal that is hooked to ground, and then the 2 wire plug on the back that is blue and black. I also have a new voltage regulator that has I A S F if I need it. How do you tell if an alternator is internally regulated or not? Also, the wire harness has a large yellow wire and a smaller yellow with black stripe wire that leads to where the alternator attaches. If you need any more information, I will try to find it. Thank you all so much in advance!
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Old 09-23-2007, 05:15 PM
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That alternator is an external regulator style.....I personally if its not wired yet would just go with an internal regulator style.
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Old 09-23-2007, 05:54 PM
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I agree that if you are already having trouble with wiring, a switch to a GM 10si or 12si internally regulated alternator would make things much easier.

For the 10si/12si alternators you want to find the model with the best "clocking" for your application. This refers to the location of the two-wire plug relative to the mounting ears. Take a look at this web site for more explanation
http://www.madelectrical.com/electri...elcoremy.shtml

The 63 amp 10si is very easy to find, and the 94 amp 12si is also relatively common. You can get both with either a grooved pulley for a v-belt or a ribbed pulley for a serpentine belt. Either alternator should be big enough for most rods, unless you plan to install some high-amp accessories.

Bruce
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Old 09-23-2007, 06:37 PM
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Quote:
Originally Posted by HalfOunce
That alternator is an external regulator style.....I personally if its not wired yet would just go with an internal regulator style.
And I'd also go with one that's had a self-exciting internal regulator installed, making it a simple, one wire hook-up.
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Old 09-23-2007, 07:10 PM
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I'll concur with the recommendations of the others who have already replied ... go with the 1-wire internally regulated. They're cheap and plentiful, so if you ever have a problem on the road ... you should be able to get a replacement almost anywhere.

That alternator that you have is the same as the one that came on my 66 GMC and is only 37 Amp.

They are pretty durable and dependable, etc ... but 37 Amps is pretty small by modern standards.

How to wire it courtesy our old friend Doc Vette (recently deceased)
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