Detroits have fuel shutoffs the same as everything else. The air flapper is simply an emergency shutdown to cut off the air. The reason they're perhaps somewhat more prone to running away is mostly due to their unit injector fuel system. Each injector has it's own rack attached to considerable linkage attached to an externally mounted governor. Long story short... it's not that difficult to have it stick or hang up on something.... or be seized if it's sat long enough. When you compare them to a common Roosa pump, they are quite complicated... likewise most inline pumps with hydraulic injectors are compact with the critical parts contained in one housing. A Cummins PT system is regulated by simple pressure... so all of these systems have more fail safes generally speaking. Detroits also have a nasty habit of building up oil in the blower boxes and flipping the blower seals.... so they run off on their own oil. Sometimes the only shutdown is CO2.... or extinguishing the oil supply.
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Today's Featured Article - Harvestin Corn in Southern Wisconsin: The Early Years - by Pat Browning. In this area of Wisconsin, most crops are raised to support livestock production or dairy herds in various forms. Corn products were harvested for grain, and for ensilage (we always just called it 'silage'). Silo Filling Time On dairy farms back in the 30's and into the first half of the 40's, making of corn silage was done with horses pulling a corn binder producing tied bundles of fresh, sweet-smelling corn plants, nice green leaves with ear; the
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