Disco 2 Injector seals - fuel line removal?

Hey up guys,

Further to this thread: https://www.landyzone.co.uk/land-rover/td5-injector-seal-disconnect-fuel-lines.393137/#post-5711474

Ive removed the two lines on the fuel cooler. But I just can't get any grip on the line off the pressure regulator.. do I have to take it off?

The two lines off the cooler didn't leak at all I'm not sure there's much diesel in head .. it takes 5/6 mins + of priming to get it to start ....

What do you all reckon?

HI, IMO you overthink this, when i replaced the seals on mine i didnt undo any fuel line, start the engine then remove the fuel pump relay and wait untill it stalls, change the seals then purge it that's all... though you should replace the air bleed valve(WJN500110) in the rear wheel side port of the filter head cos than one can cause starting issues too.