Find someone with a borescope to check the cylinder wall through the
spark plug hole -- a "stuck ring" on this engine can mean a rebuild job
if the cylinder wall is scored.
If the cylinder wall is OK, I would add a small amount of ATF to that
cylinder only and let it soak a couple days. Then rotate the engine to
clear it (spark plug out) and attempt a restart.
The main problem with stuck rings is that they then scrape the cylinder
walls badly, and that cannot be fixed by freeing up the rings again.
Peter
