The timing belt teeth must align with the sprocket teeth on both exhaust & intake camshafts as well as the crankshaft sprocket.
Put the #1 piston in TopDeadCenter(TDC) position, both camshafts should be positioned with slots on rear of shafts in horizontal position.(Note: the last lobe (RH side)of both canshafts should be pointing inward, toward each other.)
Due to the spring pressure on the cam shafts, they will not sit with slots perfectly horizontal (This is what the alignment tool does) If the slots are not real close in alignment, the belt won't fit over the 2 camshaft sprockets properly. (I tried to mesh the belt with the 2 cam sprockets without aligning both camshaft slots. It lacked about 1/2 tooth or so being able to mesh up.)
I used a straight piece of steel bar that I happened to have.It was thinner than the slot width, however so I added paper shims to the bar until both slots were inline (just by eye). The belt meshed up perfectly then.
I realize that this is not a professional way to do this job but it worked fine for me.
"Necessity is the Mother of Invention"
