On this Husqvarna 445, I do not know what actually caused the clutch drum to explode or the bar to get fouled up. I’m guessing that the bar hit the clutch drum and exploded the drive gear on the clutch drum. I replaced the clutch drum the pinion bearing the seal to the oiler driveshaft and I replaced the oiler driveshaft itself put a new bar on it and a new chain on it. This Husky runs like a top it was a free chainsaw and I have A little over $100 in it, for a $500 chainsaw not bad in my books!
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