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Show REVEALING DEVICE FOR AUTO ENGINE . i New Attachment Shows WTiat Is Tailing Place Inside the Cylinders. Kvcry motorist would like to know just what is taking place in the insiuo of the cylinders of his motor. Now a revealing device lias been perfected which dis- closes the explosive action ignition. In appearance it is just like a spark plug, but it lias an opening through which the spark may bo watched. In a recent test with a car In the east the following interesting Information was obtained: 1. A correct mixture was evidenced by a regular, bluo (lame. 2. A rich mixture was shown by a - yellow flame. o. A weale mixture made a weak flame. 4. Skipping, or dead cylinders by an intermittent, or no Ha mo. ". Poor compression, dirty plugs, weak spark wore evidenced by a weak flame in that cylinder. ! 6. Excess oil was evidenced by small particles of yellow flame, " j It Is understood that this Is only a test I device, and is kept on the engine only 1 during the time that the trouble is being located and the necessary adjustments made. When a perfect burning mixture is obtained, ob-tained, the flume has the same bine color as a gas burner flame : the yellow color in the rich mixture is due to the pres- enrp of unburn ed incandescent carbon reticles. Manor appearing on the automobile pag, published as new, but under tho recent law IiAssod by eonRrcM Is classified as artTortls-1ng artTortls-1ng because- (he flrolers mentioned rarrr a M in another part of the paper. In no aeoae are |