Discuss crhenry's answer to: Where can I get a downloadable repair manual for a 1999 Ford Escort SW. I have to replace the timing belt

Autozone.com has a detailed explanition in the repair info section.  However, if you don't align the Camshaft with the crankshaft position properly, you can cause severe damage.  If the belt broke while the engine was running, you probably will need to remove the head and check for bent valves, damaged pistons etc.