well, I'm getting real close to starting on the head bolts. finally got the intake manifold off. Guess I still have to order that rail pin puller tho, kinda expensive it seems like... and I don't know how to use it

. And i just want to make sure, that pin puller is for the rail guide, not taking the chain apart right?
To get the chain loose I just loosen the 12 pt bolt and take out the upper rail guide and let the chain/sprocket sit right?
Before I take that off I'm gonna try to check for stretch. I got the two marks on the sprocket and... other thing... lined up pretty well, just need to look at the crank pulley correct? I just can't really see it very well so I'm wondering if I have to remove the water pump or something else to get to it properly.