the baseline adjustment for the cable is to have no free play at the point where the throttle linkage picks up. it's important to find the pick up point of the linkage because on the diesel there is lots of linkage and lots of movement in the end of the throttle cable before the arm on the injection pump starts to move. so you find the point where the injection pump arm just starts to move and this is the pick up point. at this pick up point is where the thrust cable AKA bowden tube cable should have zero free play. once you find this baseline spot you can fine tune the adjustment from there. it is quite sensitive, like 1/2 turn either direction will yield noticeable changes in the way the transmission shifts.

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punkinfair