Dry teak

[capta]

Let's say you had some teak on your boat that had dried out to the point that it was popping out plugs and some of the scarfed joints were no longer properly tight. Just to make it a bit more fun, this teak cannot be removed economically to work on, or be replaced.
This teak is a bit over 30 years old, having spent some 25 years of it's life in the NY area (on a boat sailed in summer and on the hard, covered for the winters) with the last 6 years in the tropics. Not varnished or oiled, just grey weathered teak baking in the tropical sun for the last 6 years.
What would you do to revitalize the wood (swell it back up)?
After it gets swelled up again, it can be varnished, oiled or otherwise coated to avoid a repeat of this situation.

 

[Jacktar]

Wash it with cascade dish washing gel in a gallon of water (poor mans oxalic acid in expensive teak cleaners) with a soft brush. Let dry, do it again, let dry. Give it a liberal brushing with teak oil. Let it soak in, rub dry with rag to keep from staining surrounding fiberglass. Repeat until it wont accept any more oil. Let sit and redo the oil again after a few days. It will come back, its the nature of teak. Dont complicate your life and varnish or cetol or whatever .