Posted by ludgyy on January 17, 2011 at 22:03:46 from (50.48.48.105):
In Reply to: alternator posted by Gary Polivka on January 17, 2011 at 18:45:22:
Generally with tractor applications you want a smaller pulley because tractors run at a much lower rpm then a car. An alternator will produce the same voltage at different rpms, what actually varies is how much amperage the alternator will produce at a given rpm. With a tractor that just needs the battery(s) maintained and a few lights run, the pulley size doesn't need to be to exact just as long as it is spinning close to the desired rpms.
A delco alternator can be run the opposite way as what it is intended for and still work, however if too much load is put on it running backwards it can possibly overheat. again, with a tractor that just needs the battery maintained and maybe lights every once in a while it would be fine.
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Today's Featured Article - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
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