timing belt alignment marks for vauxhall astra 1.6 8 valve 2003?

how come when you have not altered the position it still will not fire

alan
August 2011

head gasket blown replaced it marked the cam put it back together but still wont fire yet it still started with gasket blown

alan
August 2011

did you take off cylinder head ? if so you need to change head gasket, the timing mark for the camshaft is on timing cover behind the cam sprocket, when you take off the first cover look directly above sprocket there will be a triangle shaped groove, and the timing mark on the sprocket is punched into it, it is a triangle shaped mark. align the two marks together then align
the crankshaft sprocket timing mark (again it is a triangle mark) with the mark on oil pan. you may have damaged your valves by turning the engine over when it is out of alignment as i did that once and knackered valves
if further assistance needed email me at: klio54321@yahoo.com

mark
June 2007