Far too complicated for a simple answer.  Buy a manual.  I've done it twice
using a combination of Chilton's and Haynes.  They aren't the best manuals,
but they will get you thru this job.

You'll need a torque wrench.

And don't just do the timing belt.  Do all the belts, plus the water pump
and thermostat.  And check the cam seals and crank seal while you're in
there.

Bill G
'91 SE Auto

Buy a service manual.  You will have to take all the assessory belts off
and then take the timing belt cover off and then replace the belt, water
pump and tensioner pulley.  Buy factory parts and it will last as long
as the original.  Also, get sensor safe sealant as not to poison the
oxygen sensors.

 Get a manual, use a dealer t-belt. It has marks which make it less likely
you'll install it out of time.