HERE'S ONE.
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Apparently she was a new motorist, for, sitting next to the driver of the char-h.-bancs, she had pestered him with pseudo-technical questions for half an hour. The engine popped on a gradient and she said, "Oh, driver, I've had that same noise two or three times on my car. What is it?"
"Well, you see, mum, it's like this : the chain that's on the float of the carburetter sometimes gets caught on the stud on the magneto shaft— only for a moment, if you get my meaning. Now, that shaft is coupled to the propeller shaft, and the jerk causes the clutch to turn right over, and,when that happens, one of the explosions—" " Oh, yes, I know I The engine goes by a series of explosions, doesn't it? Yes?" " Well, one of the explosions, instead of going down and turning the crankshaft round, comes up, and that is why you hear a bang." • "Oh, I am glad you explained it so nicely I " el9