Engine

[xrcr]

So I've finally got back on the cub since I got the engine freed up. Valves are out cleaned, lapped and back in just need to adjust. I decided to pop #4 rod and piston out since that was the cylinder that was froze. Bearings look good, crank journal looks good. Have a stuck compression ring. It's funny that the top ring is free and I removed the oil ring and re installed easily. Not sure how only the ring in the middle of those two can get stuck. I'm soaking in trans fluid and penetrating oil so we'll see. Any better ideas will be appreciated.

[xrcr]

Still soaking piston, 2nd compression ring still stuck. on #4. To the best of my measurements cylinder is in the 2.62- 2.6234 range.
I'm not giving up but what is the opinion of just changing out the 2nd compression ring if it comes down to it. All advice is appreciated

[Eugene]

Very small pin punch. Very gently tap one end of the ring gap, then the other direction. Soak more.

If the ring doesn't come loose, I would install the piston and run the tractor, lots of SeaFoam.

[tst]

try a propane torch if you are trying to save the ring, it is probably stuck because of old crud and carbon, the heat will loosen that up so it can be removed then you can clean things up

[SONNY]

I second the heat! don't get carried away since you want to save ring! Heat , soak, tap around gently on it, heat soak, tap and it should come loose without damage.

[xrcr]

Now why didn't I think of that. Sometimes you need to bounce ideas around to get reminded of some pretty standard protocols.. Thanks to all for the input
xrcr

[xrcr]

Ring is loose, rod/piston back in.Little heat made it happen. Now I wait for gaskets