I just experienced exactly the same thing with our ('85) rebuilt engine
with about 115k on it.
Hopefully it will be looked at today but I would like very much to hear
opinions, especially some that aren't the too expensive kind but I do think
the "stick a fork in it - it's done" theory is most likely correct.  Have
to get fixed in time for Spring trip and Limbo events.  Has anyone figured
out how to get an engine in a Christmas stocking???

Wendy & John
'85 Westy,   "S-CAPE"
(which won't be escaping to anywhere soon)