hi there
what year is the fordson? is it fitted with a simms injection pump? mechanical or pneumatic governor? does it have an excess fuel button(cold start)?does it have a fibre fuel pump coupling? does it have a decompresser  lever fitted to the rocker cover does it poduce any smoke when  turning over?white ? black?  ive never seen a fordson major with bleed valves on the injectors, do you mean the banjo bolts holding the leak off fuel return pipe?
                
 turbojohnny
                
 August 2005