Well, my crank pulley bolt has been backing out on my 93 dx (daily driver POS!) off & on for the last 6 months. I've tightened it up about 6 times throughout that time frame. Tonight when I started my car to leave from work I heard "the noise" again under the hood. My crank pulley was wobbling & my alternator belt was sorta split down the middle & looks like its going to break soon. (fairly new belt too damnit!) Usually I just tighten it up & it will stay tight for a good month or so but tonight, 5 mins after I tightened it started doing it again. My question is, say if I just took the crank pulley bolt off would to pulley come off or could it possibly stay in place. I was going to try & do that tonight to put some locktite on the threads but was unsure if the whole thing would just come right off. Secondly, my timing has been off that whole time too. I have the ignition timing all the way advanced to compensate for it. Would the timing being off have anything to do with the bolt keep backing off because maybe the engine has to work harder than it should. Sounds stupid but i'm just curious. I have do go to work early tomorrow & attempt to fix this so any help ASAP would be appreciated. Where are ya night crew!