Does 1992 geo storm gsi have timing belt or timing chain

most probably not, the GSi has a different head. Base has a 12 valve, GSi has a 16V. Check for part numbers. Do you need just the cap or the entire distributor?

https://www.google.com/search?q=Engine+diagram+92+geo+storm+gsi&biw=1362&bih=650&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwjYzZrkhpjQAhWBfCYKHd5eCVMQsAQIGg

Hope this helps.

the geo storm, 1.6 DOHC
the FSM cover it, so does alldata.com
hint 2, its an Isuzu engine.
its really (makes information easier to find )
Isuzu:
4XE1-UW a DOHC 16-valve engine with 130 hp (97 kW)
he DOHC engine was used in the 1990-1991 Isuzu Impulse XS, in the 1990-1991 Isuzu Stylus XS, in the 1990-1991 Geo Storm GSi, and the M100 Lotus Elan.
all that off the wiki,,
all cars rare here.....

1st google hit
http://www.robietherobot.com/storm/torquespecs.htm

This engine is interference type
so when timed, with a new belt
roll engine by hand, with spark plugs out.? do pistons hit valves.
yes, stop, the cam is timed wrong.
no, do a compression test on #1, if pass, do all 4. 150psi min.w.o.t.
wide open throttle
a better test, is a leak down test. x4. by hand.
these acts of kindness to the engine, saves most engines.

if the leak down fails, the timing is wrong, or the valves are already
bent..
dont use a fleabay china belt, bet a GATES belt. (they last)
setting the tension is very important to a full life .

same answer for all cars made 1920 to now.
never restarted ,ever ? gee , a little hint...?
1: lost engine compression hot, (gee forgot to do the 60k serviice/)
2: lost spark , yes, check spark at all 4 cyl. if bad check coil spark.
3: lost fuel or too much fuel called flooding.

one removes a spark plug, it drips of fuel , say all 4.
flooding.
crank motor at WOT, wide open throttle to clear flooding.
if the spark is good and the spark tips are dry, then try test fuel
if car starts and dies. then you lost injection.

easy huh> with the above you know exactly why it fails.
compression bad
spark
fueling.

1991 i think is TBI single injection engine, i can look it up but
no i wont. we need to do the tests first to get there.

Yes although swap the electronics from the old engine to the new replacement one

you need to check the timing belt tensioner,sounds like it is going bad.also check that you dont over tighten the belt

The Geo Storm is was equipped with a 1.6L 4 cylinder engine,
the GSI Geo Storm had a 1.8L 4 cylinder engine.

ck the timing belt open up the oil cop see if the valves are moveing crank it over if it cranks over fast its a timing belt

On the 1.0L geo metro engine the main bearing caps go on startine with #1 at the pully timing belt end of the engine with the arrow pointing in that direction. Then #2 and so on in the same manor. Hope this helps.

Under hood, driver side, upper engine area, rear of valve cover, mounted on rear of throttle valve assembly