A poor design, but a very common one. My father, a professional auto mechanic, always replaced the throttle and choke plate retainer screws with extra-long brass ones when he rebuilt carbs. Then he used sidecutters to spoil the threads that protruded from the other side of the throttle shaft. The theory was that the ruined threads would prevent the screws from backing out and getting sucked into the engine; and if they somehow did fall out and get sucked in, brass would be less harmful to the engine internals than steel. He was not a big believer in Loctite, at least for moving parts that are continously exposed to gasoline.
He also believed that if fuel injection ever caught on for gasoline engines, it would cut his engine repair work by 50%- his opinion was that most engine wear resulted from mis-adjusted or worn-out carburetors diluting cylinder/valve lubrication.
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Today's Featured Article - The David Brown Rose Badge - by Samuel Kennedy. In the 13th century civil war was raging in England. Two English noblemen were involved in a conflict which became known as the War of the Roses. The Duke of York had as his emblem a white rose and the Earl of Lancaster had a red rose. Today the white rose is the official emblem of the county of Yorkshire and the red rose has been adopted by the neighboring county of Lancashire.
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