It does not have a timing belt. It has a chain and gears.If timing chain goes out then the engine will not run.
Belt
Chain
chain
It has a chain.
chain
It does NOT have a timing belt, That engine has a timing chain and gears.
It has a timing chain that requires no maintenance.
98 - 2008 has timing Chain, according to toyota.custhelp.com =p (1997 has timing belt)
timing CHAIN
The 98 S10 doesn't have a carburetor.
Mine on the 98 is a belt. It is behind the serpentine belt under covers on the front of the engine.