Within the past week, my Grasshopper 220 started to seep oil at the crankshaft. As far as I know, its all original, 2003 model with just over 1500 hours, with the 20 horse Kohler. From what I've researched, it may be the reeds/breather or head gasket? Definitely has positive crankcase pressure. I pulled the dipstick and started it and yeah, blowing out, not pulling in. But I've also noticed on the right side of the motor, there is oil. It appears dried up and not wet but I'm guessing it is leaking at the head. Where are these reeds? I'm seeing that some where in the head and some under the air filter/carb area?