2N Not Charging

Retcol

Member
My Ford 2N does not indicate any charging on the gauge. I installed a new gauge, had the generator repaired at a shop that specializes in those type of repairs and installed a new cut out. Now what else can I do?
 
First, check the voltage at the generator side of the cutout and the battery side with the engine running above low idle.

Should be in the area of 7.4 volts, give or take a little.
 
Is it the adjustable output generator? If it is u might be able to tweek it up a little to get the 7.4 volts Bob speaks of..
 
I have 7.4 volts coming out of the generator but the gauge shows the discharge side. How do I correctly hook up an aftermarket gauge which is different from the original? My gauge has the two poles versus the original that just has the wiring passing through it.
 
Did you polarize generator? If amp gauge bounces in the positive direction when starting it is wired reversed. Should be same voltage on both terminals of cutout when generator is generating enough to close cutout. I have found new cutouts that are defective.
 
I tried that and nothing changed. I must be doing something wrong but I can't figure out what it is.
 
(quoted from post at 20:35:27 04/23/17) I have 7.4 volts coming out of the generator but the gauge shows the discharge side. How do I correctly hook up an aftermarket gauge which is different from the original? My gauge has the two poles versus the original that just has the wiring passing through it.

An old original style ammeter had the wire passing through a loop on the back of the ammeter. Cut this wire and put each end to the new ammeter. If it shows discharge when you are actually charging, swap the two wires on each stud.

If you are measuring over 7 volts with the tractor running, you are charging. To verify, measure voltage at battery with the tractor off. Then measure again at the battery with the tractor running. If you have more voltage with the tractor running than you had with the tractor off, you are charging. If your new two stud ammeter shows discharge, just swap the wires on the two studs. It will now show charge.
 
you may have your gauge completely wired up wrong.

As a test, do this.. make up a wire from genny armature to one post on gauge, then the other post on gauge to battery hot.

have no other wires on genny or gauge.

run her... ammeter movement?
 

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