Audels Answers on Automobiles

Audels Answers on Automobiles

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 edition. Excerpt: ... an engine by means of the crank handle in order to start it. Turning it over a few times by hand will--if all the mechanism be in proper working order--cause the engine to take up its cycle and continue to rotate. Ques. What is the proper method of cranking? Ans. The operator faces the car and grasps the crank handle with the four fingers of the right hand, allowing the thumb to lie along the handle. The crank is now raised to its highest position, pressed in towards the car and turned downward. If, at the beginning of this movement, it turn hard indicating compression, the operator should allow the crank to spring out of engagement with the shaft and revolve backward far enough so that he will pull "up" against compression. An engine should never be cranked downward against compression, for in case the spark has not been fully retarded, the pressure of the early explosion may overcome the momentum of the fly wheel and drive the handle violently backward, resulting in, perhaps, a seriously sprained wrist or broken arm. Ques. What method should the beginner pursue? Ans. It is advisable that he make two or three turns with the switch off, then a final turn with the switch on, when the engine should start. Figs. 143 and 144.--Illustrating right and wrong methods of cranking an engine. As ordinarily practiced, the hand is so placed that the thumb and fingers encircle it. Such a method is decidedly unsafe should the operator press down on the crank and a back fire occur. The correct method is to place the thumb on the same side of the handle that the fingers are placed, so that the handle is not entirely encircled, allowing the handle to slip out o the grasp when it is being pressed down, and permitting the fingers to release the handle more

Product details

  • Paperback | 124 pages
  • 189 x 246 x 7mm | 236g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236517172
  • 9781236517173