did my first mb valve adjustment a few weeks back. had a heck of a problem with the those nuts.,

then try to adjust using the specail wrenches, was still a nighmare. after about 4 or 5 valve, used the wrenches to 'break' and tighten only.. used my fingers to adjust and then used fingers to hand tighten. after i made the nuts as tight as i could by hand, i used the wrenches. sure a lot easier.

next time all the valves will done using this method.

bob
1981 240d 180,000
1984 isuzu diesel 502,000