View a timing belt in action.  Click on the link below. A high speed internet connection is recommend.  Windows Media player recommended.

4 Cylinder Timing Belt in Action.wmv    

How can I find out online if my vehicle has an interference engine?
Follow this link  for instructions.

When should a timing belt be replaced and what is an interference engine? 
The chart below is taken from the Autodata Timing Belt Replacement book and explains when the timing belt should be changed.  It also tells if the engine is an interference engine which will cause MAJOR engine damage if the timing belt, idler pulleys or water pump fail.

All pictures courtesy of Autodata   Copyright Autodata 2008

Below is a timing belt repair diagram courtesy of Autodata which shows what is involved in replacing  a timing belt on a V6 Honda.