Posted by Dave H (MI) on December 09, 2012 at 08:45:51 from (66.87.4.15):
I have my 1947 Farmall B, 12v conversion, in the shop. Was a runner but failed to start last Spring and has been sitting. I am running all my usual checks. Carb has been cleaned to get old gas out. Running continuity to make sure there is spark. I have 12v on both sides of the switch when turned on and also on the far side of coil. I have nothing on the near side terminal of the coil with points open or closed. Holding the center terminal of distributor near a good ground and snapping open the points does not give me a spark. I am thinking I need to replace the points and condenser but the lack of any voltage on that near terminal is confusing me. Should I have voltage on that side of the coil at some point? It is a new coil.
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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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