Clutch, chain or sprocket?

13 years ago

I've got a Husky 61 with a 30" bar. Last time I used it it acted like it wasn't getting oil. I finally pulled it out after a few months. The motor is fine. Oiler is fine. Chain will very slowly advance a few inches then stop, then repeat the same. I haven't played with saws in years and I don't remember the basics. Bar is clean and looks fine. Chain looks like it has life left. Sprocket rolls free with just the chain on it. Clutch engages an disengages fine with no bar, chain or cover. Put it together and it barely moves, then locks up, then repeats. Motor is definitely under an extreme load as something is binding. Any suggestions?

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Comments (5)

gator_rider2
13 years ago
Is bar clean out under chain, chain on backwards
rcmoser
13 years ago
not familiar with 61, My guess is your not lining up the chain adjustment tab in the chain cover and it's pinching when you tighten up them cover nuts. Or if it has chain brake the brake strap is warped and braking the clutch drum?
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chas045
13 years ago
I think rc has something there. I recently had my chain brake loop get out of shape on me and the chain would lock up either immediately or after a short running period. And yes, I could imagine someone failing to get the hole in the bar to mesh with the tension adjuster.
SubmarineMark
Original Author
13 years ago
The bar is spotless. Not a speck of dirt. I cleaned it, reinstalled everything and the symptoms are the same. I removed the chain brake band/loop quite a few years ago. The tensioner is installed to the bar properly and is increasing/decreasing the bar/chain tension as it should. No problems there. I'm suspecting the bar or sprocket, possibly the chain but I haven't played with one of these in years. The Husky 81 is a 61.5 CC from 1989.
rcmoser
13 years ago
probably need to look at the sprocket that's welded to the clutch drum. if it got deep teeth wear it probably locking up the chain. I've only had to replace 1 sprocket on my saws. just wanted to make sure you done all the easy stuff before you started changing stuff. My next guess would be warped bar if the sprocket is pristine??? or maybe bad or missing needle bearings on the clutch drum???