Quote:
Originally Posted by nutzboutoldies
Jonathan, the picture is not that great. There are only one accordion ring and two solid rings. The one ring in the picture that looks like another accordion ring is stained with the impression of the accordion ring that makes it look like one.
When I took it apart this morning I paid close attention to how the ring was installed and they were correct with the accordion ring on first and the other rings on top and on the bottom and the set rotated freely in the ring grove.
I'm going to get a new set and compare them with the new set.
I did overheat this thing shortly after I put it together the last time. So much that I barley got it back to the garage thinking it was a fuel problem.
For some unknown reason I had used 10W30 oil instead of straight 30 and on the hot summer day of mowing for an hour or so I believe it allowed the engine to over heat. 
Maybe the rings have lost their tension due to overheating??  |
I really don't think it would have overheated with 10W-30 if it was tuned and running correctly. You sure it isn't running very lean?
I have never seen an oil ring lose tension from overheating. I would think that all of them would have if you got it that hot. Doesn't really matter as you will have to buy a whole ring set.
Other possibility is that the oil ring was standard and not .020" oversized. As long as the cylinder and piston look OK, get a new set of rings. Check the ring end gap and adjust it accordingly and install them. Make sure they fit as they should. Put it all back together and you should be fine. Not sure what happened here.... but if you are sure they were installed correctly I'm thinking the oil ring was standard sized.