heh,when i checked mine, on my old 1.6td,i turned it one way,the mark i made was like 1-1.25 inches from the orig"0" mark,then the other way,the scribe mark was like 1/2 inch from the "0",,,thats not good enough to get timing right,,i didnt find this out till the engine was in the car,and it ran like crap,,when i checked it,i went :idea: then anger set in,,,,,what a &^%*^%&*to check it in the car!!!