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right side. The spark and throttle levers are moved forward to increase the engine speed. The proper position of the levers for hand starting is shown in the illustration. When using the electric starter the spark lever may be advanced to a greater degree than shown. A conveniently placed starting button,

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plainly marked, that can be operated by the driver's foot, puts the electric starting motor in action. The gear shift lever is also provided with a marked guide plate, so the various positions of the lever to obtain the different speed ratios are clearly indicated.

Stearns-Knight.—The driver's compartment of the StearnsKnight cars is clearly illustrated at Fig. 62. The spark and

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throttle levers are carried above the steering column in the usual manner, but are so arranged that the spark lever works on the left side of the fixed quadrant, while the throttle lever works on the right side. The usual accelerator pedal is provided

for altering the engine speed. Before starting the motor it is necessary to see that all control levers are in their proper positions. If this is done there can never be any accident when starting. The first step is to advance the spark lever by moving it up about half way on the quadrant. The throttle lever is moved up about one and one half inches from the bottom. Pull the carburetor "choker” all the way out. Turn on the ignition

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Fig. 63.–Studebaker Assembly and Control Levers.

switch and press down the starting button, which is located centrally in the top of the toe boards. Note that the ignition switch is carried at the left of the switch panel and that the lighting switch is carried at right. A receptacle for spare fuses and for the fuses of the electrical system is placed between the ignition and lighting switch levers.

As soon as the engine starts, watch the oil gage to make sure that the oil is circulated. The gage should never indicate less than three pounds pressure when the engine is idling. In cold weather it may be necessary to admit raw gasoline to the cylinders to insure the engine starting. This may be done by filling the priming cups on top of the inlet manifold with gasoline or

ether and letting this amount flow into the manifold interior. The petcock should be closed before starting the motor.

Attention is directed to an oil regulator, which is similar to the carburetor primer, located on the extreme left-hand side of the instrument board. This regulator controls the pressure of the oil and should be used wherever the anti-smoking ordinances are not too stringent, as it is a better and more efficient means toward general lubrication of the motor, although it will cause the engine to smoke a little. In operation this oil regulator is similar to that of the carburetor primer. “ To increase the oil pressure pull the choke up as far as it will go. Then observe the oil gage and the exhaust. If the smoke is too heavy, push the plunger part way down, again observing the oil gage and exhaust and thus marking the amount of pressure and the position of the regulator at the point where the lubrication is most efficient and smoke the least. When running the engine at high speeds, keep the regulator all the way out. The reason that lubrication should be watched carefully is because the Stearns-Knight engine employs sliding sleeve valves instead of the usual poppet valves. In order to secure smooth engine action it is very important that constant lubrication be obtained.

The slow speed position of the gear shifting lever is to rock it to the left and pull it back toward the driver's seat. The reverse, following the conventional "cane” shift practice, is on the same side as the low speed and in the forward position. When the lever is rocked to the right side, the second speed lines up with the reverse and is the forward position, while the high speed lines up with the low speed and is that position nearest to the driver's seat. The reason the low and the high are usually at the same end of the imaginary H sector is because it is often possible to go from the low speed directly to the high speed without passing through the intermediate. This can be done on the level or when descending a slight incline. On slight upgrades it is necessary to go into the intermediate speed before the direct drive is engaged.

Scripps-Booth.—The driver's compartment of this popular car is illustrated at the top of Fig. 64, while the positions of the

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Fig. 64.-Control System Parts and Gear Shifting Diagram of Scripps

Booth Automobile. gear shift lever necessary to obtain the various speed ratios are clearly shown at the bottom of the cut. No spark advance lever

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