weenieroaster
ArboristSite Operative
I inherited this little used Stihl 090G (photos) when my logging buddy died. I think it is a beautiful saw, use it now and again, both for felling and milling. I still use the original loop of 1/2" chain that came with the saw. I love the sound of it popping away with that tiny muffler on there........it's just a great tool. One thing though, it had this small breather hole in the gear case cover, was manufactured that way. I think it originally came with a small cotter pin inserted into the hole, and bent over inside. Whenever the saw is run on it's side, like in normal felling operation, gear oil drips out the hole. As the saw gets hot and the oil becomes less viscous, the hole leaks more and more. I don't have the saw's manual, it must say something about it in there? I have wondered what Stihl had in mind by that hole placement.
I bored a hole lengthwise through a small threaded stud, and fastened it to the case through the enlarged and tapped breather hole, then put a small piece of gas hose with a bit of fuel filter material in it over the stud (photo). It still dribbles a bit of oil out after the filter material becomes saturated, I think the heat forces it out, but it's an improvement over the plain hole. Originally I had put a small screw in the stub of gas line, like in a fuel tank breather, but the filter material seems to work best.
Has anyone dealt with this leaking problem, or seen any Still literature on the situation? Any additional considerations?
Thanks for the help.
I bored a hole lengthwise through a small threaded stud, and fastened it to the case through the enlarged and tapped breather hole, then put a small piece of gas hose with a bit of fuel filter material in it over the stud (photo). It still dribbles a bit of oil out after the filter material becomes saturated, I think the heat forces it out, but it's an improvement over the plain hole. Originally I had put a small screw in the stub of gas line, like in a fuel tank breather, but the filter material seems to work best.
Has anyone dealt with this leaking problem, or seen any Still literature on the situation? Any additional considerations?
Thanks for the help.
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