James is right. You can't just ask how to change a timing belt. Your engine might me shot. Once the belt breaks the valves bend. You may need a new engine or top engine not a belt. You obviously didn't take care of the car. A timing belt is never supposed to break. It is supposed to be changed every xxx miles so it does not break and destroy the engine. I own a ferrari 355. My timing belt is supposed to be changed every 30k miles at a price of $4,500. A standard timing belt change on most cars is usually about $245.00 Did you change yours? Nope. That's why my car is still running. Not being mean to you but to ask that question on here is like asking how do you change an engine with a broken rod. You may need an engine or at least the top half of the engine (the head). A compression test needs to be done on each cylinder to see if you bent the valves which 9.5 times out of 10 you did if the belt broke. You probably need a belt and a replacement head out of a junkyard. Lesson learned.
Remove all of the parts that are blocking you from replacing the belt, time the crankshaft to camshaft, install belt, and re-install all of the other parts. If it is an interference engine, you may have some valve, head, or piston damage too.
I'd recommend taking it to a shop to get it done... Timing belts are not easy things to change and are definitely better left to a shop to do...
How do you know your timing belt broke?
Simply asking your poorly-written question on Y!A clearly demonstrates that you do NOT have the intelligence, knowledge, or competence to even attempt such a complex task. Have it towed to the your car's make's dealership or other competent shop.
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grab the book and read that chapter 3 times.
this is a pretty big job, unless you have a good knowledge of mechanics I would not recommend trying to do it,