Posted by Jim R on July 30, 2009 at 21:57:29 from (209.181.185.49):
I recently purchased a 1951 Farmall M and when I run it at faster RPM the ammeter pegs out to the Positive side. It is still a 6 volt, positive ground system. There is also a small bracket with a small porcelin piece fastened to the top of the horizontal distributor. This porcelin piece has two wires attached to it, one of which goes to the back of the coil. I"ve never seen a device like this on a "M" and I"m not sure what it is for. Can anyone out there tell me where to start to check to rectify the overcharging problem? Could the voltage regulator possibly be sticking. I"m a little electrically challenged and don"t quite know where to start. Any advise would be greatly appreciated.
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Today's Featured Article - Oil Bath Air Filters - by Chris Pratt. Some of us grew up thinking that an air filter was a paper thing that allowed air to pass while trapping dirt particles of a particles of a certain size. What a surprise to open up your first old tractor's air filter case and find a can that appears to be filled with the scrap metal swept from around a machine shop metal lathe. To top that off, you have a cup with oil in it ("why would you want to lubricate your carburetor?"). On closer examination (and some reading in a AC D-14 service manual), I found out that this is a pretty ingenious method of cleaning the air in the tractor's intake tract.
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