Allis Chalmers D-14 charging system

[jim bindon]

Does anyone in tractor land know I can convert my 12 volt positive ground generator-regulator system over to a 12 volt negitive ground single alternator system ? Please and thank you.

Jim Bindon

 

[cole in mo.]

Built a bracket for my 14, used the generator pully and belt,fits and looks good, and it works.

 

[steve(ill)]

yes jim, its done everyday. the starter does not care about the polarity. the ignition coil should have the wires switched as should the amp meter. after that, throw away the regulator and generator and mount the alternator and wire it up. if your talking about a 1 wire alternator, i would suggest not. get a normal CS130 delco that needs a charge wire and a small signal wire to turn it on and off.

 

[jim bindon]

steve and cole thank you for your response. steve you said I need to switch the coil wires and the amp gauge wires around. I read the distributor wire should be connected to the negitive terminal. Is that true? I'm going to buy a normal alternator so can you tell me what wires connect to the alternator posts and where they come from. Please and thank you. jim

 

[jim bindon]

Steve: Thank you for your responce. Steve, you said I need to switch the coil wires and the amp gauge wires around. I read the distributor wire should be connected to the negitive terminal of the coil. Is thaat true? I'm going buy a normal alternator as you suggested, so can you tell me what wires I connect to the alternator posts and where they come from. Please and thank you. Have a great day. Jim

 

[jim bindon]

Cole: First,thank you for your resonse. Cole, can you tell me how to run the wiring, where each wire comes from and goes to. All I know for sure is I'm changing from a positive ground to a negitive ground. Oh! what type of alternator did you use? Again, thank you very much and have a great day! Jim
Mayville, mi

 

[steve(ill)]

Jim, the wire from the point goes to the negative side of the coil if you use a negative ground system. if you dont switch the amp gauge terminals, the gauge will read negative when charging.------- for "normal" alternator i assume you are getting a DELCO 10SI off a chevy or pontiac vehicle. That is the most common alternator. If you want a smaller alternator, get a DELCO CS130 which is from the 2000 era. THE 10Si was used in the 1970-90s. You need a 10 gauge or 8 gauge wire to the big stud on the back of the alternator running to the amp gauge. Then there are two spade terminals on the side. #2 is hot and uses a 12 gague jumper wire to that big stud on the back. #1 is the signal wire and is hot when running. Normally it is turned on and off with the key or toggle switch. This wire also need a resistor or diode in the circuit to drop voltage slightly and keep it from feeding backward. I can send you a print if you need. Just tell me what alternator you are using. Make sure it has a voltage regulator inside. the 10SI and CS series do have that. [email protected]

 

[jim bindon]

Hey Steve! I found an alternator in the shed, took it up town and had it tested and its ok. I believe it was off my 1985 GMC, so it is the 10Si. Therefore, with all your help I should be able to take it from here. You're the MAN.

Thank you very much!
Jim














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