A carb will heat soak on an engine and the mechanical pump will also heat the fuel. With the OEM pump and carb there is not much that can be done. I would put an electric fuel pump on the firewall, or near the fuel tank. Then I would re route the fuel line so it goes directly to the fire wall and down. Putting heater hose over the fuel line insulates it further. Make sure the carb heat stove system on the air cleaner is not turning on, allowing the intake to draw air from around the exhaust manifold. My preference is to put a "summer" aircleaner on it with a snorkel that draws cold air from beside the radiator or other non heated air. Many times a ducted fan can be used to direct cool air on the carb from the front. This can be switch controlled from the cab to allow situational use. Winter grade gasoline is still in the pipeline and tanks at gas stations. It is substantially higher in volitiles and will vaporlock much easier. I know of no fuel solutions or gimicks that work. I have used all of the above methods at one tome or in combination to cure (successfully) vapor lock. These are not snake oil magnet on the line garbage. Jim
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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