Check across the battery terminals when running at 1/2 throttle or more. It should be 14.2 to 14.8 volts. If more it has a bad regulator or is not correctly getting sense voltage. If it is a "one Wire" alternator It is the Internal voltage regulator. (I like and recommend 3 wire setups as they are similar to the way the alt was designed to be used.) Contrary to others opinions, If there is nothing but oil in the oil pressure line, it will read almost instantly. Oil does not compress, it takes only a few cubic millimeters of oil to change the bourdon tube in the meter. If it was full of air, the tube would need to be run 60 % full of oil to move the needle to the correct mark. That delay with cold oil is why the meter reads slowly. Jim
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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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