Need help with wiring on an Oliver Super 55
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Dave M7040
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I don't know why I am trying to throw you a life preserver 
I guess since no one else is running to help you.
This is the three important pages from a very old book on your style alternator.
These images will be way too big for viewing on the forum and suggest you print each and then study.
You sure don't have the resistor wire shown in Fig D5 nor the indicator lamp.
You speak of a diode in a wire to or from the alternator. Not part of Delco's design but likely a home made hack to allow the engine to stop when you turn the key off.
Your plan forward seems most backward to me. You should be going to an auto wrecking yard and buying a 37.5 amp internally regulated alternator for $30 bucks and connecting it as a one wire setup.
Dave M7040
I guess since no one else is running to help you.
This is the three important pages from a very old book on your style alternator.
These images will be way too big for viewing on the forum and suggest you print each and then study.
You sure don't have the resistor wire shown in Fig D5 nor the indicator lamp.
You speak of a diode in a wire to or from the alternator. Not part of Delco's design but likely a home made hack to allow the engine to stop when you turn the key off.
Your plan forward seems most backward to me. You should be going to an auto wrecking yard and buying a 37.5 amp internally regulated alternator for $30 bucks and connecting it as a one wire setup.
Dave M7040
Dave M7040
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If you can wait until later today, when I have less nausea from the pain drugs, I will be able to think more clearly.
I think the ballast resistor should not be part of the alternator circuit.
Could you post a picture of the resistor and also of the diode you have previously mentioned.
Would hate for you to blow something and then have to get another regulator or alternator.
Dave M7040
I can definitely hold off. I believe the ballast resistor will work in place of the idiot light/ resistance wire in the diagram you provided me. I know it was hooked up to the resistor originally. I can take a pic of the resistor and diode hopefully tonight depending on the weather.
Dave M7040
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Where is the Start Switch you had talked about?
If the resistor you have is a white ceramic one then it is for the coil and has nothing to do with the alternator and regulator.
Where is the diode in your wiring diagram?
Dave M7040
Dave M7040
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This is a better wiring diagram than I got from my old book.
Note the use of two resistance wires. One 10 ohm and one 1.8 ohm.
I added some color to the wiring diagram to help me understand it better.
I did not use the colors on the wiring diagram itself as there is no way to mark a white wire on white paper
Do you have a multimeter ?
Dave M7040
Note the use of two resistance wires. One 10 ohm and one 1.8 ohm.
I added some color to the wiring diagram to help me understand it better.
I did not use the colors on the wiring diagram itself as there is no way to mark a white wire on white paper
Do you have a multimeter ?
Dave M7040
Dave M7040
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I am studying your hand made wiring diagram. Within the regulator you have a #1 terminal marked but I think it is an F. In your most recent post you talk about an F terminal and i just want to be certain your sketch 1 is the same terminal as the F
Can you plse check and advise.
Un-plug the wiring from both ends of the resistor and measure the resistance of the white ceramic resistor.
On the wire with the diode, can you check it to see which way your multi meter shows positive flows through it. To the regulator or to the alternator.
Dave M7040
Can you plse check and advise.
Un-plug the wiring from both ends of the resistor and measure the resistance of the white ceramic resistor.
On the wire with the diode, can you check it to see which way your multi meter shows positive flows through it. To the regulator or to the alternator.
Dave M7040
Dave M7040
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I have changed your wiring sketch to match the Delco one,
I am still trying to decide how best to handle terminal 4 on the regulator as it is the one with both the bulb and the 10 ohm resistance wire.
Dave M7040
More thoughts. I think you need a small light bulb to replace the 10 ohm resistance wire. A #94 sold at places like Walmart. It will be around 12 ohms which is close enough.
You need to get a socket for the bulb so you have two wires to work with which are connected to the bulb.
If this is more bother for you and you think you can get it working yourself plse let m know so I can move on to help others.
I will continue to try and help you but I am certain you appreciate with a diode soldered into a circuit, this wiring has been hacked up big time and just trying to understand what has been done and how to restore it to just before you split the tractor is a challenge having not been there.
I am still trying to decide how best to handle terminal 4 on the regulator as it is the one with both the bulb and the 10 ohm resistance wire.
Dave M7040
More thoughts. I think you need a small light bulb to replace the 10 ohm resistance wire. A #94 sold at places like Walmart. It will be around 12 ohms which is close enough.
You need to get a socket for the bulb so you have two wires to work with which are connected to the bulb.
If this is more bother for you and you think you can get it working yourself plse let m know so I can move on to help others.
I will continue to try and help you but I am certain you appreciate with a diode soldered into a circuit, this wiring has been hacked up big time and just trying to understand what has been done and how to restore it to just before you split the tractor is a challenge having not been there.
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Dave M7040
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Thanks
I was getting worried that you had walked away or found a solution and never told any of us on the forum which happens far more often than you would think.
I am expecting the ceramic resistor to not be any value close to the two in the wiring diagram
The 12 volt end of the resistor may have been just used as a convenient 12 supply for the alternator and has nothing to do with the charging system.
The socket for the bulb having two wires is important. Years ago I tried using a tractor trailer side marker light but it got its ground through the mounting screw and I had to do soldering to change to ground to an external wire.
In this Delco alternator application, 12 volts is applied to both terminals on the bulb once charging begins and the bulb goes out. Before charging starts the alternator becomes the ground for the dash warning light and it is on.
The second purpose of the bulb is to limit how much current can flow through terminal 4 to ground.
I wish I had a better memory on these old systems. When they replaced generators they were like a miracle and only provided 37.5 amps but did so at low speed and very reliably.
I now see very similar style Delco alternators putting out 150+ amps.
Hook one of these to your Oliver and the power needed to turn the alternator would stall the Oliver
Dave M7040
I was getting worried that you had walked away or found a solution and never told any of us on the forum which happens far more often than you would think.
I am expecting the ceramic resistor to not be any value close to the two in the wiring diagram
The 12 volt end of the resistor may have been just used as a convenient 12 supply for the alternator and has nothing to do with the charging system.
The socket for the bulb having two wires is important. Years ago I tried using a tractor trailer side marker light but it got its ground through the mounting screw and I had to do soldering to change to ground to an external wire.
In this Delco alternator application, 12 volts is applied to both terminals on the bulb once charging begins and the bulb goes out. Before charging starts the alternator becomes the ground for the dash warning light and it is on.
The second purpose of the bulb is to limit how much current can flow through terminal 4 to ground.
I wish I had a better memory on these old systems. When they replaced generators they were like a miracle and only provided 37.5 amps but did so at low speed and very reliably.
I now see very similar style Delco alternators putting out 150+ amps.
Hook one of these to your Oliver and the power needed to turn the alternator would stall the Oliver
Dave M7040
