You can't use that bar to hold the cams still so you can loosen the sprockets if you decide to do so. The cams should be milled for a 21mm or 13/16 box end wrench to fit. I think that's the size, I can't remember, but you should be able to see the place where it's milled for a wrench to fit the center of the cam somewhere- I think between cap 1 and 2. You'll break the back of the cam off if you use that bar to hold the cams still.
I don' t because I haven't done one, but nobody else is answering you. From my other timing belt experiences- I don't remember a serious problem with doing the job. I'd try it, and if you must loosen the cam sprockets in order to get the belt on- then you know what to do. Zetec cam sprockets should be keyed so it's not like you're going to turn one so that it doesn't line up any more.
You've probably already figured all that out anyway, but I didn't want you to feel shunned.. LOL
---The Complete How-To Archive--
Moderating everything now, let me know if I can help.
Originally Posted by the user formerly known as ZX3_Chick
You're special aren't you.