alternator wiring

[steve40490]

I'am changing from generator to alternator on my 29 A.Does anyone have a diagram ?

[Y-Blockhead]

Originally Posted by steve40490

I'am changing from generator to alternator on my 29 A.Does anyone have a diagram ?

If the Alternator is 6v positive ground just disconnect your wires from the generator and connect to the alternator.

[jrelliott]

Are you getting a 3 wire or single wire alternator? On the single wire alternator, just connect the wires that were attached to the output of the cutout to the single output of the alternator. If it is a 3 wire alternator, send me an email to [email protected] and I will send you schematic. On the 3 wire you either have to have a fuse which you must remove when you park if for a long time or a complete cutout switch as the alternator will draw just a small amount of current even when the vehicle is turned off.

[Bob C]

6 or 12 volt?

Bob

[canadian]

Hey Steve , I am in process of doing same job, question for you ? what diameter of pulley are you using? I assume you are using a 12 volt GM.

[Dick Steinkamp]

Sponsored Links (Register now to hide all advertisements)

Originally Posted by jrelliott

Are you getting a 3 wire or single wire alternator? On the single wire alternator, just connect the wires that were attached to the output of the cutout to the single output of the alternator. If it is a 3 wire alternator, send me an email to [email protected] and I will send you schematic. On the 3 wire you either have to have a fuse which you must remove when you park if for a long time or a complete cutout switch as the alternator will draw just a small amount of current even when the vehicle is turned off.

Cars originally equipped with a 3 wire GM alternator did not have a problem with current draw when the car was turned off. You can solve this for an A by having a charge indicator light between the #1 terminal of the alternator and the battery as was done with cars originally equipped with this alternator...or, a diode in place of the indicator light.

[canadian]

Hey Dick , just curious, if a fella just wired in a small 12 volt bulb between terminal 1 and battery connection on alternator . sort of hide it under alternator or whatever do you think this would do the trick from your experience ?

[steve40490]

Thanks guys,I'am going with 6 volt pos. ground.

[Dick Steinkamp]

Originally Posted by canadian

Hey Dick , just curious, if a fella just wired in a small 12 volt bulb between terminal 1 and battery connection on alternator . sort of hide it under alternator or whatever do you think this would do the trick from your experience ?

I've done it (not on an A). Works great!

[canadian]

I am actually at this task as we chat , what info can you give me on a diode? maybe easier to hide in harness.

[Dick Steinkamp]

Originally Posted by canadian

I am actually at this task as we chat , what info can you give me on a diode? maybe easier to hide in harness.

I've never done it with a diode, but this from the HAMB...

"I have always done this using the DIODE. A 12 volt (or higher) 1 amp diode works with "normal" 10si - a HIGH output alt will require a higher amperage rating - jump to a 5 amp in that case. "

https://www.jalopyjournal.com/forum/...estion.217154/

This from a tractor forum...

http://www.yesterdaystractors.com/cg...alk&th=1510639

[canadian]

thanks Dick for you time and expertise .