It is the stock 4 cyl. engine.  The car as I got it had a belt that goes
from middle groove of crankshaft pulley to the alternator ONLY.. Autozone
gave me a 13AV0980   (Goodyear Gatorback 17386). The belts' OD is 98 CM.
However, even with the Alternator slid toward the crank pulley as far as it
will go, it wont work, is too small! I checked the Gatorback belt site, and
looked up my car on it, and it listed the same 17386 belt, so Autozone gave
me the right belt...and that 980 P/N is on the belt itself.  I don't have
the original belt, it got trashed or lost somehow    (big mistake).
So I adjusted the alt. back to about a mid-position, locked it down there,
and then got a piece of 22 ga electrical wire, and ran it around the two
pulleys.  This should give me the inner circumference of the needed belt. It
measured 94 CM.  I found a v-belt size calculator on-line, and plugged in 1
cm as the cross-section (the depth of the "teeth"). (ALL the belts apprear
to be 1 cm belts)  I plugged in 94 cm as the inner diameter, and it says I
need a belt of 100 cm OD.
   Unfortunately, the gatorback site doesn't list the PNs in order of size,
so I had no way to determine what the Gatorback number is for a "1000"
(presumable what the 100 cm belt would be) instead of a "980".   The guy at
the Autozone store would not be of any help I am pretty sure.
It might be that my replacement crankshaft pulley has a larger diameter than
the original one....that would sure account for all the trouble I am having
fitting belts on, but I haven't checked that.
     Thanks, Jim