I found this thred very useful, when I could not get Tilly (2.5td) to start after changing the fuel filter. I had cranked the engine and now know that this pulled all the air from the new filter into the fuel system - Silly Tilly!!! So we followed the priming instructions above to the letter, but could not get fuel to spit from the injector pipes, until my genious of a son spotted that there is a bleed nut on the top of the fuel pump. Opened the nut, cranked the engine, waited for spitting fuel from pipes, tightened everything up and vrrrruuuuummmmmmmm! Hope this helps anyone with the same problem.