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Show Fa'j'.-.y Spai'Ii PIus Are Cause of Motor Ming When mi automobile engine misses at high speed or ill climbing hills the trouble can cfti n be traced to the spark plugs, according to engineers. Much of ibis trouble, I hey say. Is i!ii" to the spark plug point being set too far apart or because Hie plugs are IVIiMI out. The gup bet wei ti the points should not have more than .(Uo-lneh ckair-anee ckair-anee or .n.'O Inch In high compression engines. As spark plug trouble Is often mln taken for valve or pbton ring trouble, the proper tiling to do before making repairs, the engineers r.ay, Is to have the plugs Inspected, which will suve unnecessary expense. r r i- f-t-- rt im-h! .'i-rv.'i r- ft n cm-n o i-j oc- |