tomdcoker
Addicted to ArboristSite
I got a MS 211 in today that had a hole in the top of the cylinder. The owner had carried it to a local shop where he bought it. They tore it down and found the hole and gave it back disassembled. It had some scoring, but there was no sign of what caused the hole. The top of the cylinder was fine, no sign that anything had gone through the cylinder. This is a new group of people at this shop and I have done enough business with them that I do not trust them. A good example is, a man brought an 041 to me the other day and he had carried it to them and they told him that it needed a part in the carb. that was no longer available. The carb. was set way to rich. I reset it and it crank, ran and cut fine.
I called another Stihl dealer and talked to the technician and he asked what plug was in the saw. It has a Bosch. He told e that it needed a NKG CMR6H. He said the Bosch plug caused it to run hot enough to cause the problem.
This is my first saw with a hole in the cylinder and I told the previous owner that the only thing that I knew would cause this is, the wrong octane gas, timing off or the wrong plug.
I have seen this once before in a 1965 Buick and it burnt a hole between the piston and cylinder wall. It ruined The piston, but not the cylinder wall. PS T he previous owner told me that the plug came with the saw.
I called another Stihl dealer and talked to the technician and he asked what plug was in the saw. It has a Bosch. He told e that it needed a NKG CMR6H. He said the Bosch plug caused it to run hot enough to cause the problem.
This is my first saw with a hole in the cylinder and I told the previous owner that the only thing that I knew would cause this is, the wrong octane gas, timing off or the wrong plug.
I have seen this once before in a 1965 Buick and it burnt a hole between the piston and cylinder wall. It ruined The piston, but not the cylinder wall. PS T he previous owner told me that the plug came with the saw.