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Another carburetor question...
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Posted by Farmalittle on August 23, 2001 at 07:10:03 from (209.131.235.249):
Let me start by saying I appreciate all the carburetor info so far. I'll ask one more question then let it drop. On the bottom of my 1940 "H" carburetor, there is a set screw that angles down towards the back of the tractor. Just above the head of that screw, on the bottom of the carburetor housing itself, there is a hole. When I start my tractor initially, gas squirts out of this hole, but not when the tractor is running. Also, while the tractor is running, I can put my finger over the hole and feel it sucking air. If I leave my finger on the hole, the tractor will die. Is this normal? Shouldn't any air that enters the carburetor come through the breather? I have looked at several other "H" tractors and they all have the same hole. However, I haven't gotten to see a different tractor running to determine if they are sucking air there as well. If this is not normal, what do I need to do to fix it?
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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.
... [Read Article]
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