So I started to replace the timing and balance shaft chains, guides and tensioners on my 08 2.2l Ecotec this morning.. I successfully installed the balance shaft chain with all marks aligned perfectly and installed the guides and tensioner. But when I got to the timing chain, I can not for the life of me get the two colored links of the chain to align with the intake and exhaust marks on the cam sprockets.. If I start with the chain on the intake sprocket aligned in the proper place when I try to put the chain on the exhaust sprocket the marked link is about 2 or 3 teeth off from the mark on the sprocket... any ideas? Could one of the shafts have somehow rotated? and if so can I figured out which one and get it back where it should be? Sorry If I'm not explaining good enough. I can take some pictures if need be. thanks for all of the help in advance!