I had a main leak once before on another plane, and the oil remained
behind the flywheel. I believe this is different and probably a plug as
you describe. There is a plate under the prop bolts, so removing the
spinner will not make it visible. Time for professional help. Thanks
for the info.
--
Gene Seibel
Gene & Sue's Aeroplanes - http://pad39a.com/gene/planes.html
Because I fly, I envy no one.