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1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

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Old May 3, 2007 | 10:56 AM
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Vr

Now here's really a dumb question. I have been replacing some of the old stuff on my truck to eliminate future breakdowns and am now thinking about the old voltage regulator. I have a 1951 F1, with a 68 mustang 302, & C4 Trans. I can't find a voltage regulator on the truck. There must be one, I don't have a modern "one wire" alternator. The alternator looks original than probably came with the engine.
Anybody got any ideas.
 
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Old May 3, 2007 | 11:18 AM
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Hey, Jim! If it ain't broke, don't fix it. Have some faith.

I have a three wire alternator and no voltage regulator. I'll be you have the same (and it ain't stock). Every vr I have ever seen is on the firewall.
 
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Old May 3, 2007 | 11:27 AM
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Vr

Randy, I plan to replace the alternator, which if original is a 38 amp with a new one with a 55 amp rating. How is the voltage regulated with our setup. I'm worried about frying the battery. Yes, every voltage regulator I've seen is on the dash, but not here.

Reason I'm so paranoid, is that this truck sat in a barn for 12 years before I bought it, and I'm going to Knoxville with the boys. Just wanted to do stuff to make sure I get there.
New Carb, new fuel pump, new starter solenoid, new gas tank, new water pump, new radiator, new electric fan, new tranny shifter, rebuilt brakes all around, changed all fluids. All this done already.
 

Last edited by jimhackney; May 3, 2007 at 11:32 AM.
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Old May 3, 2007 | 11:31 AM
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My alternator is an 80 amp and my system is 12 volt. I'm unsure of the answer for your setup. 6 volts, right?

I'll defer to one of the smart guys on this one.
 
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Old May 3, 2007 | 11:33 AM
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I'm 12 volt also.
 
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Old May 3, 2007 | 11:56 AM
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Can you get us a picture of the alternator? If we can identify it we can then determine if it has an internal regulator or not...
 
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Old May 3, 2007 | 12:02 PM
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Do a search on this forum, for "Ford alternator" and you should get a couple of threads with schematics and the answers to your questions.

In short, the regulator for alternators on Fords is more likely to be next to the starter solenoid. It is electronic, so it is smaller than what you may be looking for.
 
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Old May 3, 2007 | 01:36 PM
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Originally Posted by jimhackney
Now here's really a dumb question. I have been replacing some of the old stuff on my truck to eliminate future breakdowns and am now thinking about the old voltage regulator. I have a 1951 F1, with a 68 mustang 302, & C4 Trans. I can't find a voltage regulator on the truck. There must be one, I don't have a modern "one wire" alternator. The alternator looks original than probably came with the engine.
Anybody got any ideas.
Someone did a bit of swapping of Ford alternators.

In 1985, Ford began offering an IRA. No that's not a savings account or an Irish army, but an Integral Regulator Alternator. On the back side of the alternator is a small black plastic box...there's your regulator.

The alternator looks similar to what '68 Mustangs used, which btw is the same as everything used from 1963 thru 1979. First Ford to have an alternator = 1963 T-Bird.
 

Last edited by NumberDummy; May 3, 2007 at 01:41 PM.
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Old May 3, 2007 | 02:08 PM
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Vr

Thanks, mystery solved. I had an old Delco Alternator with a self contained regulator. Knew it had to be somewhere.

Thanks to all of you.
 
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Old May 4, 2007 | 09:58 PM
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Alternator

Jim, I would compare prices, availability of both 55 and 80, you never know what your requirments will be in the future. Have a great day, chuck
 
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Old May 4, 2007 | 10:02 PM
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Alt & VR

I got one for 50 bucks with a 63 amp rating and internal VR, already got it installed, works like a champ.
 
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Old May 5, 2007 | 12:58 AM
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Good job Jim. I had the service for my dad today. I did get the ampmeter installed. I hooked up the brake light switch, attached the turn signal switch. I also put in headlights. I will have it fired up tomorrow afternoon. I may have to bleed the brakes again. There is a small leak going into booster. I may just need to tighten a little more. I also have to retorque head bolts so they will be done. Once that is complete, I will put in the seat frame and seats. I should be ready to go then. I will be picking up the wrecker bed on Tuesday. He will put it on the truck for me.
 
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Old May 5, 2007 | 06:01 AM
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Obviously, I don't work nearly hard enough on my truck. I get tired just reading your posts...
 
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Old May 5, 2007 | 08:44 AM
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Kevin, again my sympathies for your loss. I think you're doing the right thing in keeping busy on the truck. Glad to hear you're still on a path to get us there. Incidentally, are you still planning to leave on Wed at noon. I plan to meet you in Masillion at Noon, so we can leave together.
 
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Old May 5, 2007 | 08:54 AM
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Yes. thats the plan as of now.
 
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