ran a search but didn't find what my issue is so bear with me please. I cannot get the little screw thing on the side of the 235 distributor to tighten. I notice when I take distrib cap off and look inside the whole screw is turning. is there something wrong or how do I resolve? There is enough slack the wire coming from ballast resistor to distributor isn't tightened down good and the end of the points set won't stay in place. Your thoughts, THANK YOU, lefty