Does anyone know the diameter of the stock cooling fan on a B7200? I've had some overheating problems, and my fan blades look shaved down; they are almost 3 inches smaller than the fan shroud. I can't find anything else wrong.
I wouldn't know exactly the size. seems like it may have been replaced with a smaller one or, trimmed to balance a broken blade. for cooling fans to be efficient they should come almost to the edge of the shroud. If it doesn't a turbulent condition exist and air is not really drawn through but batted around over it.
That's what I was thinking, but I didn't want to order the part without knowing for sure. I just found it listed as 310mm, which is 12.2". Just as you said, someone has cut this one down.