Sorry for the late reply; didn't see your current question. I'm sure the internals of the dizzy can be negatively impacted by changes in voltage. That one's beyond me as to troubleshooting. I don't see the ignition timing impacting timing belt position unless you had such a serious backfire or more that it physically knocked the hell out of the valvetain causing the belt to jump. Doubtful. Hopefully, one of the guys with a lot of mechanical skills will chime in. Once again, if you don't get responses, post this question over at http://forum.planetisuzoo.com/. We're all here to help one another, regardless of forum.