I am new to this forum and perplexed. I bought a ford 3000 fuel injected 3 cylinder diesel at auction 3 yrs ago. Not sure about the year other than late 60s maybe early 70s model. I haven't ran it in about a month. Today, I start it up to bush hog, do about half an acre and notice a fuel drip from the choke connection on the fuel injector pump. I can't find anything in the manuels that I have to help me. The choke lever slides onto a grooved pin coming out of the fuel injection pump. That pin seems to have more play in it then it should and the fuel drips off it but only when the motor is running. Has anyone encountered this and how do I stop it?