Converting A Small Tractor To Run On Biodiesel

Hi All,

I'm addressing this post to Bob Armantrout and anyone else who has experience with diesel engine conversions.

I have a Ford 1210 (3 Cylinder Yanmar diesel engine) from the early-Mid 1980s which is decidedly NOT appropriate for biodiesel.  I have spoken the the engine manufacturer about getting parts made of Viton B (do you know of any other materials?) and they have only the standard replacement parts that were made for the machine.

Does anyone have any leads, suggestions, experience they would like to share?

Thank you all!!

ML