1952 f1 voltage regulator

[Gick70]

I have acquired a 1952 f1,the previous owner changed it from 6-12 volts,what wires go where on the voltage regulator as I have more than 3 wires?

[dmsfrr]

Is the truck now also wired Negative ground?
If it is, the other end of the negative battery cable would be bolted to the engine. If it's somewhere different, where is it? ...and what engine does the truck have?
I'm assuming the truck has a 12v generator, if it's an alternator ignore most everything below.

Here's a link to a 12v '57 wiring diagram you can zoom in on...
http://www.oldcarmanualproject.com/t...re5765-195.jpg

and a 'before' photo of the 12v voltage regulator in a '55 that was previously converted to 12v.
(it's getting a new wiring harness, and a bunch of other stuff)

'A' - Left terminal: the large yellow/black wire goes to the "A" / Armature terminal of the generator, and the small yellow/black stripe wire goes to the 'Gen' light on the dashboard.
'F' - Center terminal: the small black/red wire is connected to the "F" / Field terminal of the generator.
'B' / Battery - Right hand terminal: the mid-size yellow wire goes to the horn relay. The two larger yellow wires... one goes to the 'battery' side of the Starter Solenoid, the other to the Battery terminal of the headlight switch and/or ignition switch.
With some minor differences between years, some wire colors, and how trucks are wired vs cars, this should be really close.
Example: the 3rd image below... a slightly newer diagram with a couple different wire colors but the layout & function is (almost) the same. In image #2 the "+" battery cable is fastened to the left side of the starter solenoid. In the 3rd image the "+" battery cable is connected on the right side. It may seem odd but it makes no difference as long as the large cable to the Starter is on the opposite side.

When you get it all hooked back up you'll need to 'flash' the charging system.
".... before you start the engine, remove the field wire from the voltage regulator and strike it (draw an arc) to the battery terminal of the voltage regulator in order to properly polarize the generator then reconnect the field wire to it's position on the voltage regulator." (from this link...)
https://www.ctci.org/gilsgarage/6to12.php
.

[Gick70]

The wiring harness has been updated too,now it's a 1952!

[dmsfrr]

8/22 at 10:25 AM. I added some questions and info to comment #2 above

Is the Ignition Coil labeled 'internal' or 'external' resistor? Maybe '6v' or '12v' ???
Is there a ballast resistor wired to the "+" terminal of the coil? The "-" coil terminal should go to the distributor / points.

[Gick70]

When I trace the field tab on the voltage regulator,where does the wire on the field suppose to go?1952 f1!

[dmsfrr]

Sponsored Links (Register now to hide all advertisements)

I was thinking of posting the easy/lame answer, -- the 'Field' terminal wire on the voltage regulator connects to the 'Field' terminal on the generator.
But after looking at the two generators I have realized the generator terminals aren't marked.

So I went back to my collection of 'before' photos and the wiring that was pulled from the car to match them up. This photo is looking down over the passenger fender at the Generator.
Maybe the smaller terminals on your generator are marked?

Here's what I traced back from the Voltage Regulator...
The 'Armature' terminal is on the back of the generator, the big yellow wire.
The 'Field' wire connects to the lower terminal of the two smaller ones and the (upper) 'Ground' terminal wire connects back to a mounting bolt holding the voltage regulator onto the inner fender.
The 12v converted '55 this photo is from was driveable and the charging system was working fine.
I also double checked the regulator-to-generator wiring in a neighbors '57 and it's hooked up exactly the same way.

I suspect the 'F' and 'Gnd' terminals on the generator not being labeled has something to do with the generator needing to be 'polarized'. (see comment #2 above)

[56markII]

That extra terminal was if my memory serves correct was for cars and trucks that only had an "idiot" light instead of a guage. My 59 Ford only had a light for oil and charge and this wire went to this light. It was always normal for this light to flicker when the engine idled and you let out the clutch making the engine idle slower causing the cutout relay to disconnect the generator when it didn't charge at a slow idle.

[dmsfrr]

Originally Posted by 56markII

That extra terminal was if my memory serves correct was for cars and trucks that only had an "idiot" light instead of a guage. My 59 Ford only had a light for oil and charge and this wire went to this light. .....

Not sure which 'extra terminal' you're referring to.
In the '55 & '57 cars I looked at, and in the '57 wiring diagram (linked above) the wire to the Gen idiot light comes from the 'A' terminal of the voltage regulator.