gibbon Posted May 8, 2010 Share Posted May 8, 2010 Hi everyone, i think ive buggered up my timing after changing my waterpump - everything was lined up, but after turning the engine over by hand a few times, my marks on the cambelt are no longer lining up with the marks on the cam gears. at first everything was lined up, then after one full rotation they were all out by about 3 teeth, then 6 teeth etc. The change is constant across both cam gears... Its the same belt that came off in the first place (not even 1000ks on it). So what I'm wondering is - should the alignment marks always line up after every rotation, or will it actually change over time (ie are the alignment marks only relevant for the time when you are actually replacing the belt) If its supposed to line up every time, what might I have done wrong? skipped a tooth somewhere perhaps? and more importantly, how do I reset the timing? Fortunatley it's not an interference motor as far as I can tell. I can set the crank pulley to TDC< but I'm unsure as to if there are any alignment marks on the cam pulleys, where tehy are, and where they shoul dbe when the engine is at #1 TDC in short, HELP! Quote Link to comment Share on other sites More sharing options...
pat1 Posted May 8, 2010 Share Posted May 8, 2010 Those marks are only there for the alignment and will not line back up again unless you turn it over enough to to work the marks back to orginal place. In short if they lined up the first time and then your on the money. Quote Link to comment Share on other sites More sharing options...
hoov100 Posted May 8, 2010 Share Posted May 8, 2010 The cams spin slower then the crank by a considerable amount (obviously) which is what makes the marks irrelevant once the belt is on. if you turn it over enough times, they will line back up though. Quote Link to comment Share on other sites More sharing options...
gibbon Posted May 9, 2010 Author Share Posted May 9, 2010 ok thanks guys. i'm just waiting for my battery to charge then i'll try cranking her over. exciting times! Quote Link to comment Share on other sites More sharing options...
jerryb Posted June 2, 2010 Share Posted June 2, 2010 If you crank it over by battery you will probably miss the mark. Put a 27 mm socket on the crank pulley and do it by hand....it takes quit a few cranks to get it to line up again.......but it will. ok thanks guys. i'm just waiting for my battery to charge then i'll try cranking her over. exciting times! Quote Link to comment Share on other sites More sharing options...
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