Hello! I was looking for info on this subject and came across this site. That does not say much for available info on the internet for backyard mechanics. First off the people who really know all the little tricks to simplify a job like this is the people who do it day in day out..the mechanics. They don't want to give away their tricks it's their livelyhood
I've never done a belt especially a dohc but from what I gathered so far, it's complicated. When you remove the old belt the cams can rotate because the belt is no longer holding the cog-pulley.
At the dealer they probably have some gimmick to hold the cams in place
while you slip the new belt on. Other-wise you have to loosen all the rocker arms to relieve valve spring pressure. Like I said complicated, not mention the tensioner which they recommend you change. Do you change the crank and cam seals? Dunno...It looks like the front motor mount has to be removed, the passenger wheel,innerfender (plastic),front pulleys and cover(plastic) maybe the valve cover and more... then you bring it to TDC (top dead center) I do this by popping out plug 1,sticking a ball of kleenex in the hole and rotate the crank clockwise till it pops out (it actually makes a pop sound
that's your top dead center...your timing marks should be aligned crank and cams.
Basically slip on the new one rotate the crank again a few times and check the marks.Just in case try the TDC trick again...I haven't yet changed mine but this is what I know so far, my next step is get chummy with a mechanic