I was looking at that too. Where the return spring attaches at the top of the lever is different than in my cars (and factory manual?). In the photo, it appears the top is bent outward, whereas I think it should be in a vertical plane. With it bent like that, I'm not sure the bottom will contact the toothed wheel, thus maybe no self-adjustment will occur. Better to not bend it back or it might later break (my above scenario). I think the later "improved" adjuster is a better design.
