82 diesel wagon. I changed both fuel filters ,then no start, obviously air in the lines. Primer pump leaking like a sieve when pumping. I’ve ordered a new one.My question is it usless to get air out without working primer pump?will pumping primer pump be enough, or do I also have to o loosen injector lines.
What is the procedure for loosening injector lines? Doi only slightly loosen and do all need to loosened at once?

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95 e320,87 sdl,79 300sd