i have set the engine to tdc using the mark on the flywheel then using the timing tool that holds the crank (a screw in pin) and tried to put the belt on using the marks on the new belt but the marks dont line up its 2 teeth out , i wonder if the belt is the write one? maybe too many teeth ? i have checked the belt on there website (dayco) and its showing its the write one. would they make different size belts , any ideas please thanks Probably not the "write" belt - but it may be the "right" one. 13 minutes ago Source(s): I paid attention in school. and you still give the wrong answers you pretentious as*hole cheers for positive reply changed tensioners with that? Does fitting the tensioner wheel (some call it the 'idler') pinch the belt in by two teeth? you have to get the belt lined up properly then tension it , i think its called the positive a negative sides of the belt . you get all the lines lined up on the right hand side of the belt the tension the slack left side . i think thats about it anyways has anyone heard of the cam pulleys playing up on the 1.9 diesels or the need to replace it when changing the cambelt? right what it is, the puleys have marks and belt has lines and directional arrows that are supposed to line up with the marks on the pulley,the tensioner is lossened off all the way but the marks dont line up. is it the wrong belt or could the cam pulley move? any ideas Dont worry about the lines turn the engine over 4 revolutions if nothing snags start it up .Did you count the number of teeth on your old belt no i did'nt count number of teeth on the old belt , something i should have done. as for the not getting the lines right, how would i no where exactly to put the diesel pump pulley!! it shows on the auto data print out that its around 3 o-clock or a certain amount of teeth from the camshaft pulley, do you think it'll be allright doing it like that? cheers Ernie F as above