Outback
Super OPE Member
Shhhh. Don't explain the relative expansion rates of metal around here unless its steel, aluminum, or magnesium. Especially to Dr. Bell End there. Remember hes a doctor of dickery. I haven't read a Stihl manual in 15 years, but I played a Manuel on TV once. I dickered a brass oiler gear trying to get it off first, once. In the end it came off with the bearing. Different strokes for different blokes I guess.