electric choke wiring?

[dewshan]

I am changing my stock thermal (from heater hose) choke to an electric one on a stock 2100 carb. I have easy access to a 12v switched aux fuse block. Is this all I need to do? wire it up to 12volt switched? Does anyone know what amp fuse I should use for it? thanks

 

[BRONCO26]

you need a choke t-stat to bolt one the side of carb where the heater hose one bolts on. you can get them at napa or any good part store. i would say a 25 amp switched fuse should be enough to carry the load, just be sure it is switch when in the run position.also cap off the heat tube line at the carb.

 

[kbldawg]

Technically, you should actually run the choke wire to the "sta"(or is it "stat", don't remember) terminal on your altenator.

Do a search and you will find a recent thread about it.

 

[dewshan]

I searched the threads but I am a little confused about it. I am running a 3g alternator. The sta lead is the white and black wire that feeds back into the alternators internal regulator? I have A S and I leads. The I is switched with ignition and the A goes to a distribution block. The S lead feeds back into the alternator. Do you think I should tap into the S lead?

 

[dewshan]

Maybe when its wired to the sta lead on the alternator it supplies voltage only when the alternator is spinning and the motor is running? the only advantage of this I could think of would be if the stereo is wired to be switched and I am parked with the key in the accessory or run position it would keep the choke open when I doesn't need to be.

 

[Broncobowsher]

http://www.fordfuelinjection.com/public/alternator/3G-ALT_wiring.gif
The stator wire is the white with black tracer looped at the alternator.
Tap into that wire to power the choke. IF there is a second wire on the choke heater, it is ground.

 

[dewshan]

got it! thanks!