Alright mate, basically i tried lots of things and in the end i had to bite the bullet and go for the injectors, so i fitted injectors with new seals, and it ran fine with a little smoke still but it seemed to clear and did start fine a few times.....
ANYWAY i did about 200miles and it was fine and then driving home one evening it went bang and a conrod came through the block so now it's tottally ruined needs a new engine and gearbox as that cracked too, so i don't know what to do with it now lol
but the tandum pump was going to be the next thing on my list