Hello everyone… have to adjust the valves because the car is nailed, but I have never done that before. wanted to know if there is something specific to consider? or do I have to work according to a certain order etc. or can I do it for example as it stands for the mercedes w 123?(this also has 8 valves and control chain) The adjustment sequence: If the valves of the 4th cylinder overlap, the valves of the 1st cylinder can be adjusted. If the valves of the 2nd cylinder overlap, the valves of the 3rd cylinder can be adjusted. If the valves of the 3rd cylinder overlap, the valves of the 3rd cylinder can be adjusted, the valves of the 2nd cylinder can be adjusted. I am grateful for every tip. mfg ps.suitable tools and dimensions for the valves I have there ! if someone needs this, please report.