[Blas]

Interesting; unless both of you are looking in the wrong area for the rack adjustment (that's doubtful) the factory may have used a different steering rack. You say that cars #2608 & #2613 do not have the adjuster, but car #2932 does... Could we get a few other cars in and around this chassis series to check theirs and report back...Say between #2500 and up...If you both send me an email address I'll send a photo of the adjuster on mine. I'd like a photo of your setup for reference too if one of you could send one...Yours probably adjusts too, but differently, perhaps the bolt or a shim below it. It's easily seen from above looking from the passenger side of the engine compartment.
My email is below...
EDIT 1:
Reading your post closer...Maybe a clarification of the directions is needed: The 17mm nut is a locking nut for the 7mm hex-ended stud it's connected to. Loosen the 17mm and adjust the 7mm hex stud, then retighten the 17mm nut while HOLDING the 7mm in position so as not to tighten it anymore when locking the 17mm nut.
EDIT 2:
More directions from my notes:
Adjustment: Jack the front end, Then loosen the large locking nut slightly, then snug down the bolt that actually pulls the steering rack's gears together. Turn the latter bolt with a box wrench or socket until the steering wheel just starts to have some drag when turned from side to side. The slightest turn of the small bolt makes a bit difference in loose and drag on the steering wheel. When it is just barely "loose", snug down the locking larger nut. The front wheels should be off the ground to do this properly, to feel for any "drag" at the steering wheel. Tightening the adjustment forces a nylon ball against the racks spiral shaft and removes the lash. While you're in there, check the pinch bolt on the clamp where the steering shaft attaches to the pinion shaft. They sometimes loosen and this can cause play in the steering shaft, as well. Also, check the pinch bolts at the U-joint on the shaft, too. Even if they're loose, they won't allow the steering shaft to come off the rack and pinion as the pinch bolts fit through a notch in the steering shaft