Further to all the posts, I have discovered that one way of bleeding it is to temporarily put in a filter housing with a primer pump, like the one fitted to older Peugeots and Escorts etc. You can then pump fuel through and get rid of the air. Then it dawned on me that you could use a 'bulb' type primer, as fitted to Peugeots and Rovers. This could be bought from a scrappy and left in place in the fuel line on your Tranny. Then I noticed in a new Sealey service tool "2007 promotion" pamphlet, that you can buy a "diesel fuel priming tool" which is a bulb type bleeder that looks perfect for the job. Pt no is: VSE055 and I'm buying one NOW! Only cost £12.95 +vat. Website is:
http://www.sealey.co.uk. I do hope this helps some people because I know when forums have helped me in the past it's been really great. The van in question, by the way, is running perfectly with no leaks. The solenoid is still not available as a seperate part from Ford, so go to your Diesel specialist or Bosch. You will also need the special tool, again see your diesel guy. Stoneycroft diesel in Liverpool got me these parts and could not have been more helpful-highly recommended. Happy bleeding, Jon.