Posted by notjustair on January 09, 2014 at 17:59:06 from (174.229.65.16):
My Farmall M is 12 volt. It has a Delco three wire alternator on it. I have it set up with a multiple pole toggle on/off switch to excite.
During the summer it works just as it normally should. Charges about 10 amps and then backs off. During the winter it is squirrelly. If it is below freezing it doesn't charge when I first start it. I start going about my chores and about 5 minutes later it starts charging normally. It is like it has to warm up first. It doesn't matter whether I give it a larger load (I just chored and turned on the lights right when I started it). If I shut it down and then start it again it works normally. It isn't like it needs more throttle to get it started - that doesn't make a difference. It got a new battery a while back - that wasn't it either. The only variable that could be causing it is temp. I have eliminated all other variables.
I have put Delco units on several other tractors around here and they don't do it. What would need to warm up in there to make it charge? It's got me puzzled. I expect it and it is just fine like it is, but I always wonder about it.
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Today's Featured Article - My Ford Golden Jubilee - by Troy Estes. This article is about my '53 Ford Jubilee and a story that starts with taking the tractor to my brother's Starter/Alternator Rebuilding shop for a wiring fix. The generator was shot as well as all the wiring. I dropped off the tractor expecting a transformation from a 6 volt to a 12 volt system utilizing the original generator housing, and a total rewiring of the whole tractor. The front end center pin bushing was worn also so I ask that they replace it if they had time. Well, that’s wha
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