Posted by Brian in Oregon on December 23, 1999 at 12:11:53:
In Reply to: Mysterious engine failure posted by Bob Moriarty on December 23, 1999 at 00:16:45:
The wire snap rings that hold the wrist pin in place had broken on a couple of pistons. They bounced around and etched the piston and scored the cylinder wall. I'm not sure if the wrist pin walked out and scored the wall too. I think it did. Supposedly the cause of this is over-revving the engine or sustained high speed running. The little weak wire snap rings don't like that.
I was wondering if anyone makes a more substantial snap ring that will fit.