Setting timing after head rebuild

[jimzdat]

Cam sprockets are aligned to the camshaft using an alignment dowel; just put the sprocket on the cam temporarily, and make sure the timing marks are pointed towards each other when installing the cams - they can be a little off when installing the cams without damage, as long as the crank isn't turned. Due to the valve springs, they won't just set in there and be perfect; you will have to force the cams slightly to get them aligned - I've used smooth-jaw vice-grips to hold the cams in position while installing belts - just go slowly and don't force anything; if you feel mechanical resistance at any time, stop and reevaluate.
Once the cams are in, then install the oil seals, reinstall the sprockets, and align all timing marks - then install the belt and tensioner, and set everything accordingly