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Show oooooooooooooooooooooooooo 1 Spark Plugs Should x be Installed Often S 5 The points of a spark plug X 9 actually wear out This, In ad- 9 6 dltlon to the cracking of the 6 9 porcelain. Is a result of age. 9 6 The point that comes down 6 9 from the center of -the plug, x o which Is the one that carries o X the high tension positive cur- 9 0 rent will appear to be eaten ? 5 away. Plugs at 10,000 miles X v often will ihow so much wear 9 6 at the points that the gaps will 5 9 be much too wide for perfect 9 6 firing at low car speeds. The 6 points can be brought closer to- 9 6 gether, but since the wear Is 6 x uneven there Is danger of not x 9 getting tho right clearance. O 2 The safer plan Is to Install X 9 new plugs. 9 oooooooooooooooooooooooooo |