Automobile Construction and Repair: A Practical Guide to the Design Construction, and Repair of Automobile Mechanisms

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American technical society, 1918 - Automobiles - 722 pages
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Page 597 - Usually, they are made with a turnbuckle set near one end, a locknut on each side preventing movement. The turnbuckle is threaded internally with a right-hand thread on one end and a lefthand thread on the other, so that a movement of the turnbuckle draws the two ends in toward one another, shortens the length of the rod, and thus pulls the lower parts of the wheels toward one another, correcting the tipping at the top.
Page 107 - This accounts for the frost which gathers on the outside of the mixing chambers of carburetors which do not have a water jacket or other source of heat supply. The heat is abstracted from the air so rapidly that the moisture in the air is frozen, appearing as frost on the outside of the carburetor. Auxiliary Air Valve. The auxiliary air valve has always caused discussion, its opponents claiming that it means extra parts, and therefore more adjustments and more sources of trouble; while those favoring...
Page 236 - Cams normally rests determines the lift of the valve, which is the name given to the amount it is opened or lifted. This is not really the lift of the valve because of the fact that in all valve-operating systems there is a certain amount of clearance between the lower end of the valve stem and the upper end of the valve lifter mechanism. This...
Page 124 - ... to about the sixth notch, with the spark lever (also on the steering wheel) retarded to about the fourth notch. The flow of gasoline should now be cut off by screwing the needle valve down (to the right) until the engine begins to misfire; then gradually increase the gasoline feed by opening the needle valve until the motor picks up and reaches its highest speed and until no trace of black smoke comes from the exhaust. Having determined the point where the motor runs at its maximum speed, the...
Page 272 - This collar is attached to the eccentric rod E, which is driven by the eccentric shaft shown. The collar D performs a similar function for the outer sleeve B. At the upper ends of both...
Page 149 - Should motor back-fire, it indicates a lean mixture. Correct this by turning the HIGH SPEED adjusting screw to the RIGHT about one notch at a time, until the throttle can be opened quickly without back-firing. If "loading" (choking) is experienced when running under heavy load with throttle wide open, it indicates too rich a mixture.
Page 103 - Whatever the nature of the mixture in the carburetor, it is admitted to the cylinder by the throttle valve, which may take the form known as the butterfly. This is a flat piece of sheet metal, preferably brass, attached to a suitable shaft with an operating lever on the external end.
Page 403 - ... which are attached to the driven shaft, together with pipe connections, or passages, between them for transmitting the working field. The various cylinders, both of the pump and motors, radiate equidistantly from a central crank chamber, and the pistons or plungers are connected to a single crankpin which is common to all. The fluid used is ordinary machine oil, its lubricating qualities and freedom from the danger of freezing admirably fitting it for such a purpose. When the system is once filled,...
Page 108 - Upon changing speed suddenly from, say, 500 revolutions to 900 or 1000, the carbureter not having this device will not give a uniform mixture immediately, and, in fact, it might require a new adjustment of the gasoline flow in order to supply the right amount of fuel. What the auxiliary air inlet actually does, then, is to control automatically, above a certain point, the amount of air admitted, thereby always maintaining a homogeneous mixture.
Page 107 - ... the valve will open just enough to allow the required amount of air to enter. It will be seen that the time and the amount of opening will be controlled by the speed of the engine, ie, by the amount of suction produced by the movement of the piston in the cylinder. Of course, as the engine speeds up, there is a greater piston displacement to be filled per minute, and therefore it is necessary to supply a greater amount of mixture. Upon changing speed suddenly from, say, 500 revolutions to 900...

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