Bob, why does an individual need to buy instructions from you for something you already made money on? All the engine manufacturers put their operating manuals online. Buying an engine and converting it to diesel isn't exactly turnkey. Why didn't you never bring out your own engine line?

Fact is that most people who run diesel can do their own machining. And many people who can build model engines, build diesels. Diesel IS tinkering. Many modelers are tinkerers and those that aren't, stick with the simple stuff. I honestly think one attracts the other. Jens once suggested a model engineering forum here, I would be there if they added one.