Thread: Husqvarna 61 project results

Originally Posted by bluescoobie

Hello Cliff,

I did some work on the 480CD. I took it apart, there were indeed minor scratches on the cylinder (only below the output port), some more on the piston. I polished them with very fine waterproof sandpaper. Put everything together, also found a 2 times brokel fuel line.

With new fuel line I managed to tune the carb and have the saw running. Low and High speed were good adjustable. Just on the edge of "4 stroking". Response to the throttle was good.

I first did some light cuts (30 cm) and it performed very well. But on the second 80cm cut the saw slowly started to "blubber" and finally stopped. Adjusting the carb was impossible. No damage was visible on cylinder or piston, but compression was low.

I ordered a new piston and rings and assembled it all together again. But compression stays low and the saw doesn't run.

When I compare it to my Jonsered 2149 Turbo the "bumps" you feel when pulling the starter rope are much less, but I would expect a lot more of a 80cc motor!

So I think the cylinder is worn out, allthough I cannot see much on it. I found an assy on

http://www.hyperparts.com/wc.dll?ctw...1~part~632-144

But they don't ship to Belgium

I guess for this moment will be the end of this part. Today I'm going to buy a Husqvarna 365 (I want to get rid of the stack of trees in front of my house ) I can get it with a 10% discount.

I will keep the 480 as a "hobby project", maybe it will run again someday!

Hello Bluescoobie, where are you in Belgium ? I have a 380 CD in good condition for sale at this moment, as it is too young a saw for collecting imo. I live near the city of Tongeren. I also can try to help you out on restoring your 480.

regards,

Roland

Hello Roland,

Would be nice if you could help me to restore the 480CD! I live in Eksel, between Lommel and Hasselt. I sent you a pb. I'm not shure I want to buy the 380CD, I hope you can understand I don't want to start a new project again. I think 480CD is good now, except for the cylinder. Carburetor, Ignition, starter rope & spring, crank everything OK. Hope to hear from you.

Originally Posted by bluescoobie

Hello Roland,

Would be nice if you could help me to restore the 480CD! I live in Eksel, between Lommel and Hasselt. I sent you a pb. I'm not shure I want to buy the 380CD, I hope you can understand I don't want to start a new project again. I think 480CD is good now, except for the cylinder. Carburetor, Ignition, starter rope & spring, crank everything OK. Hope to hear from you.

It was just an offer, so need to feel obliged. Eksel is not too far away. You have pm.
Are you sure the cylinder on your 480 is shot ? It's very uncommon to really wear them out, or did you use very abrasive material to clean it.

I am not sure either if the top end of a 380/480 is shared with other Husky models, maybe Sawtroll or Spike could comment on that. On german ebay there are sellers of lots of Husky aftermarket cylinders and pistons.

A few minor scratches in the bore shouldn't be a problem. I've managed to salvage some cylinders and pistons that looked like someone ran gravel thru them. Our most recent 61 project had some pretty good transfer of material from the piston to the jug. After preparing the bore there was only one minor defect in the bore just below one of the port openings. A new Husqvarna ring and it's running fine with excellent compression.

The 480 that we have is very diffucult to pull, you have to put it on the ground and stand on it, a compression release would have been a nice feature on that model!

In your comments you mentioned that the saw was running them died out? Have you checked the tank vent, ours plugged once and it would stall out after a minute or so of running?.....Cliff

Well some way or another the compression is gone, and until now I don't get how. Maybe I got the wrong piston rings ???? I measured the bore and it's 52mm, the new piston is 51.6 or so mm. Is that way to little?

I used very fine waterproof sandpaper and only polished the scratched part below the output port.

That's usually good enough, we try to finish them with 400 grit. I hone them by wrapping a big peice of the paper around a small hone to establish a nice pattern, after hand sanding out the bad areas by hand, and removing any tranfered material with a pocket knife.

It is also imperative to clean the jug extensively to remove any and all of the abrasives that are left behind, or it will eat the new rings up and they will never "set"......Cliff

Originally Posted by bluescoobie

Well some way or another the compression is gone, and until now I don't get how. Maybe I got the wrong piston rings ???? I measured the bore and it's 52mm, the new piston is 51.6 or so mm. Is that way to little?

I used very fine waterproof sandpaper and only polished the scratched part below the output port.

If you used a new piston and ring, it's not normal to have no compression as you described. Is your spark plug well fixed or is it's tread still OK ?