Hello, the two problems you are having are not caused by the same thing. First, the fuel leaking around the injectors is caused by te plastic caps under the fuel line retainer nuts. To fix this, you will need to purchase a fuel return line kit. This is a kit with all the caps for all the injectors as well as new o-rings to put them on with. You unscrew the nut that holds the line on and move it aside. Remove the fuel line from the sides of the plastic caps and the cap will pull off over the top of the injector. THere are 2 o-rings on the top of theinjector where the plastic cap fits. Remove and replace these o-rings with new ones from the kit. Here is a link to the kit that you need for the leakat the injectors. http://cgi.ebay.com/ebaymotors/7-3-Diesel-Ford-Injector-Kit-Fix-Leak-Return-_W0QQcmdZViewItemQQhashZitem27b8841e41QQitemZ170599390785QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
Now the fuel in the oil is usually caused by a bad diaphram in the fuel transfer pump. It is located on the passenger side and looks just like a gas engine fuel pump. Here are the directions to replace it. Thanks
WARNING: Spilled fuel is combustible.
NOTE : Cam must be at low position before attempting to install fuel supply pump. If it is difficult to start the mounting bolts due to spring action of the fuel pump, turn crankshaft by hand 360°to relocate camshaft lobe. Then, proceed with fuel supply pump installation. Install with lever on bottom side of cam.
Here is the fuel pump you need. Thanks http://cgi.ebay.com/ebaymotors/BLACKSTONE-NEW-FUEL-PUMP-W-GASKET-INSTRUCTIONS-_W0QQcmdZViewItemQQhashZitem3f07112e8cQQitemZ270701506188QQptZVintageQ5fCarQ5fTruckQ5fPartsQ5fAccessories