I know there is a ton of timing belt alignment questions but I'm still confused as to what the correct reference is to the crankshaft sprocket. The pictures in the green manual and Bentley are lacking in detail. What I aligned it to was the U groove cut into the belt guide washer. I put the U grooved washer on the outside. I did the alignment by wraping the belt to the left side of the sprocket until the 2 lines lined up with this groove. There is also a line mark on the crankshaft snub that I'm not sure if I should have used instead.