Dont know about idling it, but i covered the fuse box, battery and afm&pod with a plastic bag. then blasted it with engine degreaser and a high pressure hose. Also about the timming belt, dont bother with the brand names, its not worth spending big bucks for something that does the EXACT same thing, they dont really last longer either. A lot of time and research has gone into the rubber of timming belts. So dont waste your hard earned cassh.