Joe,
Here's something I posted yesterday that you might be interested in. If you search the FUEL forum or my name, you will find much info on diesel conversions and their operation.

"I've converted two engines to diesel. One was a .10 car engine and the other a .40 airplane engine. I mixed my own fuel. It contained ether, castor oil, and yes kerosene. Be careful making your own fuel as ether is very EXPLOSIVE! The fuel contains about 40% either and 30% of oil and 30% kero or lamp oil. I hope you are very familiar with a standard glow (nitro) engine as a diesel has some tricky idiosyncrasies. Two of them is the correct compression and mixture to get the thing started. It can be quite frustrating. Another, Davis recommends that the engine being converted is well broken in as a glow engine. If you go to the FUEL forum, you will find more information on diesels."