Whats happening here is that the trans is binding up, seemingly caught in both a forward and reverse gear (is that possible?) When I "clear" the jamn it shifts fine until coming out of reverse and going into a forward gear...usually comes out of reverse and goes 1, 2 and then jams going into third. When it happens the shifter is jammned and will not move into any gear...if you try to come off the clutch the car will not move but stall, as it seems, literally, to be in both forward and reverse, if that is possible. So when it happens the car can not be moved.
When it happens, I go under the car, detach 1-2 at the trans, position it in neutral and then go in the car and play around with shifter until it clears. Then it seems to shifts fine, 3-4 and into and out of reverse. Until I hook up 1-2. I immediately thought it was the 1 -2 adjustment but have adjusted it 3 times. I detached the reverse lock out as I thought maybe it was hindering the trans shifting in and out of reverse. Still does it.
I do think that the clutch adjustment is low. I am going to clear the trans, adjust the clutch pedal up and cross my fingers. If it still jams up is there anyway to diagnose this problem without throwing parts at the problem or removing the trans to inspect the clutch assembly?
Well, I would adjust the clutch first because you may need that anyway. MY money is still on the shifter/linkage adjustments. Read this thread: Stuck in reverse!! Clutch in, car will not roll!!!! Muncie 4 spd | NastyZ28.com
To see if it's trans or linkage: By yourself put the shifter in neutral. Look under car at left side of tranny where linkages attach and see if both flat bars are straight up and down. If you have somebody else have them shift while you watch. Straight up and down is neutral. Reverse bar should be pointing forward. Only one flatbar should move at a time. To get the linkage right, disconnect it where the threaded portion is at the shifter then find neutral on the shifter and put a drill bit, allen wrench or whatever fits snuggly thru an alignment hole in the shifter gate that will lock the shifter linkages in neutral.
Then adjust your linkage rods using the threaded end/nuts until each rod easily goes back on the flat bars attached to the transmission shift forks.
Found this: "Finally it shifts like a dream! My suggestion to anyone with this same problem is to grab another person to work the shifter while you're underneath. I was finally able to see that while it was aligned properly in neutral with the pin, the entire assembly was about 1/4 inch too far back. This made it hold onto second just enough to disrupt the shift into 3rd. By trial and error I kept shortening the linkage rod lengths by rotating the rod buttons with the helper rowing the gears till it hit the sweet spot."
You can tighten the shifter rods by using washers as spacers behind the clips that hold the rods to the shifter and the shift forks. Metal bushigs can also be used. The stronger you make the linkage, less slop the better it will feel. Make sure none of your holes are wallowed out or elongated.
I would try this first. Now I don't know much about the reverse lock-out rod assembly or how to adjust them - which may be part of the problem. It could still be a transmission problem - worn out bearings/bushings etc. and in need of some repairs -transmission parts do wear out, especially if I'm shifting on them.
But start with the shifter/linkage adjustments and go from there.
Here is a diagram that you can use with instructions on making the adjustment: http://static.summitracing.com/globa...uu-3733163.pdf