Stihl 011 AVT bar oil leak

GIBSAW

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May 19, 2025
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Hello-
A few weeks ago, I removed the plastic housing cover of the clutch & where chain goes around the sprocket, etc., I removed the chain and the bar & carefully cleaned out the debris top to bottom, something I have done on numerous occasions. Put it all back together, etc.
After it had been sitting for a week, I picked the saw up and noticed there was a good amount of bar oil that had leaked out from the bottom area where the bar disappears into the machine.
Never had this issue before, but since it's some 30+ yrs old, maybe a gasket or seal needs replacing....?
Any ideas as to what might cause this?
 
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