Cigarette Smoke Finds Leak in Inner Tube (Mar, 1940)

This method is also very effective for finding gasoline leaks. When you you notice the jet of flames, you’ve found your leak.

Cigarette Smoke Finds Leak in Inner Tube
A burning cigarette can guide you in locating a leak in an inner tube, in case it is not convenient to dip the tube into a tub of water. The cigarette is moved around the surface of the inflated tube, until the air jet from the leak deflects the rising smoke. Make sure, before using this method, that there are no strong air currents in the room where it is being done.—R. B.

  1. Stannous says: August 4, 20064:32 pm

    Do NOT try this with smokeless tobacco- very messy!

  2. Matt says: January 13, 20107:07 pm

    NOT for use with propane or natural gas leaks!

  3. Firebrand38 says: January 13, 20107:31 pm


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