Replaced my timing belt and tensioner and idlers today and car won't start now. There are no marks on the crankshaft pulley. I took out the number 1 plug and used a screwdriver and thought I got it to TDC and used tool to align cams. Loosened the cam sprockets and got all slack out. Put it all back together and cranked it and it wouldn't start. Pretty heart breaking. How can I be sure it is at TDC. Will I have to take the belt all the way off or can I loosen the cam sprockets and get it to TDC if I can figure when that is, and then use the tool to align the cams?
It is a 1998 Zetec 2.0L