Thanks to everyone who helped on this one. We are good to go. Will put this area on the twice yearly inspection cycle.
Richard

A bit of speculation for those interested:
It occurs to me that a leaking deck fitting is also likely to leak diesel if
there are drips or a splash back.
If a diesel splash back has penetrated around the fitting and into the teak,
it is less likely that a subsequent fix (by cleaning out the old sealant and
refreshing it) will result in a good bond with the fitting metal because of
the remaining diesel film.
Assuming that is correct, a good seal can only be obtained by actual removal
of the fitting and treating with an engine cleaner or such to get a really
clean surface for the sealant.
Comments?

It occurs to me that a leaking deck fitting is also likely to leak diesel if there are drips or a splash back.

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Interesting thought. If I run into situations like that, I spraying the area with brake cleaner (great cleaner and doesn't leave a residue) and bed the fitting with a thick layer of something out of a tube. I'd screw the fasteners down, just tight enough to get squeeze out all around, then let sit for several days, until the sealant cured. Then I'd go back and tighten things up on what is now more of a gasket, rather than just bedding. If brake cleaner wasn't compatible with the surface that was being worked with, I'd consider some other, more compatable cleaner, even just soap and water.
Rudy
Briney Bug- Panama City, Fl