Show hard starting engline engine trouble laid to plugs A slow starting engine the bane of motorists Is frequently corrected by attention to the spark plugs according to daud dald gregg research engineer who lio recites this interesting experience an automotive engineer visiting a laboratory complained that hla his car was hard to start in spite palte of a recent overhaul ond and adjustment 1119 1 sanik plugs had only been to in use for miles and he said there was nothing wrong with them thein using some laboratory equipment tile lie sparking ing voltage of the plugs was men menfred sred and found to be 9 LO volts almost tile the limit of his spark coil A new set of plugs was installed and am the voltage required to ore fire them was only the engine started with a snap SIMI and idled smoothly there is nothing mysterious about this action gregg explains each one of tile the old plugs find biad produced more than and the electrical characteristics had slowly lowly E changed with increasing resistance and electrical electric len leakage kage this is wily all spark plugs should be looked after at least once a year to get the best results |