Just FYI, you might want to consider checking around the manifold while it is running to see if the gasket there is possibly a problem. If the manifold gasket on an A is like my 123ci Farmall 140, then the manifold has intake and exhaust side by side. And if the gasket has blown between almost any two of the ports, then you could be getting exhaust in the intake of the neighboring cylinder, in which case, valves will not function properly, and plugs would probably look dry. Be advised though, that if you pull the manifold, you'll probably lose one or both of the old gaskets, so order new ones before you ever pull it. Case / IH dealers can order these gaskets for you, and have the shipped to your house in 3-5 days.
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Today's Featured Article - Tuning-Up Your Tractor: Plugs & Compression Testing - by Curtis Von Fange. The engine seems to run rough. In the exhaust you can hear an occasion 'poofing' sound like somethings not firing on all cylinders. Under loaded conditions the tractor seems to lack power and it belches black smoke out of the exhaust. For some reason it just doesn't want to start up without cranking and cranking the starter. All these conditions can be signals that your unit is in need of a tune up. Ok, so what is involved in a tune up? You say, swap plugs and file the points....now tha
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