OP
zetor crystal
New member
Everything turned out very well Car Doc, it was fun to change it. The valves droped less then 1/4", after I pushed the springs with my fingers and remove the valve keys with small curved pick and magnet. (magnet is my best friend when working on the tractor lol) . I was not sure about the torque for the valve rack, so I stoped on 38 ft/lb maybe to much? After setting the valves on 0.006 it runs like the champ and 0 blue smoke !!!!