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Show Method of Foiling Car Thieves or Joy Rider A simple and effective method to foil auto thieves or Joyrider It shown In the drawing. Drill and tap a hole lu the Intake manifold for a thre-elghth-Inch pipe or tube fitting, and connect " "i, WOOee Uie 6crt Opening Permit Excessive All In Intake Manifold and Prevents Engine En-gine From Starting. a length of pipe or tubing to extend back to the dush. The open end la flared out a trifle to receive a wooden plug made to fit in snugly. When th plug Is In place, the engine will run normally but when the plug la removed, re-moved, ao much air la admitted to th cylinder that no combustion can take, place and therefor the car cannot very well be run off on lta own power. If, however, the engine la started by excessive use of the choke, the firing will be ao erratic that the thief will b glad to abandon the car in a block or so. Of course, the plugged end of the tub should be located In an unnotlce-able unnotlce-able place behind the Instrument board. lllchard P. Cole, Peterson, N. J In Popular Mechanics Magazine. |