Lee,

The shrink tubing was applied to protect the rings from contamination from the cleaning procedure which consisted of scraping the crud off and then using sandpaper to refresh the surface.

Kelly,

Thanks for the effort on the Pressurecooker BioLube procedure. Nothing ventured etc. and now we at least know if it will or will not work. We may still have to play with the ingredients to maximize the thing we want to do though. And thanks for the tip regarding cleaning gunk. As you are a big engine guy I have no doubt it'll work.

I have a couple of emails out to several sources and companies for Biodiesel and have also provided links to this thread and our effort to make a good BioLube for our diesels. Most times these things get ignored but you never know.

Mylamo,

I have a toll free number to Tanaka and am waiting for a call back from their tech guy to find out if they ever made a kerosene powered outboard. Maybe they still do. That would be cool. [8D]