Farmall H restoration

[Yooper]

All back together but I didn't like how temperamental the starting was. Turned my small lathe into a magneto test stand to confirm a good spark. Chased it down to the impulse pawls that I built up with weld to compensate for wear. Didn't grind them down enough where they catch the pin and it was affecting the timing. Now it starts in one revolution and purrs like a kitten with no leaks.

One thing of note is that the amp gauge does not show charge on the low setting, but when I click it to high and then back down it shows charge. Anybody with any ideas?

 

[D2Cat]

Maybe the high speed is required to get the generator excited, then it works at slower speed.

 

[BAP]

Is it the original switch or a replacement? Did you go rebuild the generator or is it as it was?

 

[Yooper]

Is it the original switch or a replacement? Did you go rebuild the generator or is it as it was?

It is an original Farmall generator (Delco Remy) that I bought off eBay. It is a three brush generator that requires a cutout relay and the four position light switch. I replaced the bearings and checked the field coils and such for shorts. Brushes were like new. It will run like a motor when you hook up the field and armature direct. If there is an issue I suspect it would be in the cutout relay, but as long as it charges I will live with it. One more thing of note, I have dedicated ground wires for both the relay and the switch.

 

[Yooper]

Maybe the high speed is required to get the generator excited, then it works at slower speed.

I believe you are on to something. I only had it running twice and maybe I just have to learn its ‘personality’.