Your 4.0 L - OHV - V6 engine has a timing CHAIN
It is a timing belt. Older then 1993 is every 100,000km. Built 1994 and after I believe is every 130,000km.
YES !!! That model suggests timing belt replacement at 60K miles.
yes
Yes, it uses an internal timing "CHAIN", not a belt. The timing chain should last until the engine needs to be rebuilt.
A timing chain should last the life of a engine. The smaller engines with rubber timing belts have service replacement intervals.
The 2.3 liter 4 cylinder and the 3.0 liter V6 have a timing CHAIN
1994 Geo Prizm has a timing belt.
I am afraid that is impossible, since an Explorer doesn't have a timing belt. It uses an internal timing chain, which you don't service, unless it breaks or is rattling. Are you talking about the accessory drive(fan) belt? If so, there is a spring loaded tensioner that you use a socket wrech to pivot out of the way and remove tension from the belt and change the belt.
a 1994 Toyota Celica GT has a timing belt.
Timing belt replacement is a pretty big job. I'd go to the parts store and pick up a Chilton or Haynes manual.
On a 1994 Ford Explorer : The engine is fuel injected so there is no carburetor
Its has a timing belt