We found and fix the problem and it only cost me $2.20. Shifter works great now!
No rev position was not caused by anything like a washer, coin, or many if the screws that fallen into the shifter well. The problem was caused slop from 2 worn-out nylon bushings on transmission linkage. Namely the 2 on the lower mounting bracket for the big pin that allows the large hoop rock up & down. At a local hardware store, we found nylon bushings that fit in the bracket perfectly. Whereas the shaft holes were tp small we had to drill them out to fit the pin and belt sand the heads a little. Had I known how easy and great the fix was going to be, I would have taken pics. Anyway, the borrowed link below shows the assembly. If your 5 spd is shifting is a bit iffy now and then, check this assembly for wiggle/looseness.
http://farm5.static.flickr....842_95b4ce57ef_b.jpg