Tractor Repair: 165 MF Fuel Problems, massey ferguson, injection pumps

Question
I have a 165 Massey Ferguson (diesel engine). Fuel filter was plugged and I changed the filters and now I can't get the system bled. There is fuel going to only one injector and nothing to the other 3. Any thoughts on how to fix this?
Thanks.

Answer
  Masseys can be very hard to bleed sometimes.  Make sure there is plenty of fuel in the tank and bleed the filters first, then bleed the line from the filters to the injection pump, and then bleed at the injectors last.  Some injection pumps have a bleed screw also, but since I'm not a Massey expert I don't know what type of pump it is or if it has one.