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 - New Life for an Old Allis - by Tyler Woods. My friend Jon, has an old '39 Allis Chalmers B. He thought it a marginal tractor that had long since served its time. She smoked terribly and never had much power but he couldn't afford another so he was limping along with what he had. Jon's Allis has a small front loader and though it doesn't carry much, it serves his needs. It was the hard starting and low power that made him think it was time to replace the old girl. Jon called me to help him discover why his tractor wouldn't start
... [Read Article]
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