| Show 1 SIMPI 1 1 ignizio IG NIrIO 1 hairbreadth accuracy in timing n ator ignition heretofore a job tor for a trained expert is made so simple that anyone can do it in a few min utes by in Ing ennios ios application of ati obo eop e caples developed lev eloped by chevrolet engineers aa As a result the owner of any tny 1934 cl car or truck nay roll it into an official service station and have his timing perfectly adjusted with even less trouble and delay than are involved in havi ig hib his battery checked in tact fact without even stopping his en ell gine ant AN accuracy in timing to one aalf I 1 alf of one degier Is readily obtain ed the chevrolet arrangement is to use a polished steel ball pressed into the rim of the fly wheel as a mar ker instead of the usual faint groove land and to provide a simple and ane means meins of making the ball clear ly visible and seemingly landing tan ding baill every time the sparking plug of no 1 cylinder fires while the en ell gine is running at idling speed this stroboscopic effect is obtain ed by using a special neon lamp con necked to the spark plug IN with ith the engine running at BOO r p in the lamp illuminates the ball for an instant times a minute it if the timing Is correct the ball appears directly uder the fixed pointer it if it doesn doean t correction is effected by loosening the distributor clamp and rotating the unit gradually until the ball and pointer line up exactly locking the distributor at this post tion ends the operation Chev orlet engineers have found that the ability to time an engine wl ile it is running brings bettel re suits than even an expert job with the engine stopped irly timing is checked on ly during repent engine tune ups at service stations by simplify simplifying the job chevrolet enables owners to keep their owns engines at maxi max mum performance capacity by fre quent timing |
