Millard County Chronicle | 1929-01-10 | Page 3 | Difference between Hot and Cold Spark Plugs

t r 6 Difference Ference recce Between Hot t and nd I Cold Spark Plugs t j marl r pl l plugs S may be just plain pl plugs p sad nl sill all nuke to the tile motorist at pr pros pros- s' s I tnt int hut when hut airplanes s become comI corn com I r all aU this may ne e changed there is a change e In A i l Tor Jur I traceable I. I M all III plug design Indirectly at least which brings bring the to 10 si n l n i Into motor car nr use Ilse whereas col 1101 plug only hot plugs pIngs were em em- l tl il At that the cool plug Ini In iii w i motor Ilor ear car ar engines nes Is not so cool as nS r thit flut in aircraft power plants What Is the difference A hot bot pIn plug f Is one so o designed ned that flint It heroines becomes I f. f f Q gently heated to hum off the acv ac- of ot oil aa l gasoline that f f P n produce carbon thus short short- 14 nn the the Insulation A cool pIn plug In Higher com pro pro- opposite ft the non Finn Is bringing the latter t type pe Into t I the tile foreground