XXXXXXXXXXX- Greetings from New Zealand.
It sounds like you have bled the low pressure side of the fuel system, but the high pressure side is still full of air.
You have two methods to bleed the air from the high pressure side.
First on the injection pump at the top, probably where the fuel return line enters the high pressure (injection) pump housing there will be a small bolt that can be slackened about a half turn. Then pump the low pressure fuel pump till clean fuel comes out of the bleed screw. Once clean fuel is flowing from the bleed screw gently tighten the screw and slacken the fuel pipe to injector connection about a half turn each. Turn the engine over till clean fuel is coming out of at least two injectors. Tighten the two injectors that have clean fuel and the engine should start. Tighten the remaining injection fuel connections and your on your way.
Wear safety glasses as fuel will be spraying around.
The second method is to simply slacken the injector to fuel line connections about a half turn and turn the engine over for about thirty seconds. Wait one minute to let the starter cool and try again. Do this about six times and you should get clean fuel.
If you use the second method be careful not to over heat your starter or deaden your batteries.
Good luck and let me know how it goes. And thanks for clicking "Accept" so the computer will pay me.
Scott
Marine Engineer
MEC3 and RYA Yachtmaster Ocean