Thanks for the info, hchaugl. If I do install offset keys, should I install them to retard or advance the cams relative to the crank, given that the harmonic balancer reads 8 degrees past the 0 when the cams are aligned?It is difficult to measure very accurately, did 8 or 10 measurements with the tensioner in and calculated the average. Get the closest offset to that number. The chain is expected to stretch 2 degrees during the first 25,000 km..
According to section 05-215 of the manual, "An offset of the Woodruff key to the right (in the direction of driving results in the earlier commencement of opening, while an offset to the left results in a later commencement of opening."
However, I'm still not sure whether I want the valves to open earlier or later? (I'm assuming its earlier, but I'd like to know for sure before I screw things up even more.) :grin
BTW, I was wondering if you or anyone else happened to know how long the double chain on a 380sl is when it's new, since I'd like to measure my old one to determine whether it was stretched and, if so, by how much?