starting problems RR TD6

Hi fellas.
Ive got a 2002 RR TD6 which usually doesnt miss a beat but it wont start! It turns over as normal and starts up only with power start squirted into the air intake, however when i turn the ignition back of, then back on again it wont start. I think its some sort of priming issue but cant help thinking its going to be expensive!
Any help on this would be appriciated.
Many thanks.
Muffster.

Has the TD6 got leak off pipes on the injectors, if so change them as your problem sounds like leak off pipes to me

wrong forum - try the rangie lot.