OK I got back on the shifter linkage mod today. Finished it up with a simpler part I fab'd (Simpler than the similar mod with several machined parts, from the German guy, working on the 1500 wing). This is not meant for sale, just to fix the poorly designed shifter linkage - now supported on both ends and coaxially with the shaft where it exits the case.
Some pics:
The main part is made from a steel bushing, a sleeve, a small heim joint, and welded and shaped. It slips over the shifter shaft and is tack welded to it. The thinned sleeve was mostly cut off and the remainder protrudes out past the BBT lever assembly, where it is welded to the heim joint, with the latter offset 3cm on center from the splined shifter shaft. The joint is offset to reach to the axle position of the shaft at the case, and a small chrome strap with 2 holes 26mm on center and secured by the crash bar through-bolt holds the heim joint at the correct position.
The BBT shifter now works as it should with all the slop in the OEM shifter linkage eliminated by this support. Also with the additional shift shaft support secured directly to the shifter shaft, the shifter arm can still be adjusted on the splined shaft without affecting the heim shaft support (the German mod has the heim shaft support attached to the shifter arm, which is also incompatible with the BBT bellcrank plate bolted to the outside face of the shifter arm).
There's very little play in the BBT linkage - or at least not enough to affect usablility - so I didn't bother to eliminate it with more heim joints.
Note in this last pic I also moved the crank position on BBT bellcrank to increase it's movement - where they put it, in both directions the shifter limits are just short of the limits of the foot lever arm. Now there's no chance of insufficient movement.
If you want to do the same, I can add measurements if there's interest.
Here's the linkage movement:
https://www.youtube.com/watch?v=ql9Vg_wg8RcAnd the brake linkage:
https://www.youtube.com/watch?v=nOBmV1pnTcc&feature=youtu.beI just LOVE these forward controls now that they work right!
