Ok, I tried starting again while a friend pressed the primer pump repeatedly, and voila, I have a running car. So, is the fuel supply / pump looking more guilty? Don't have time to check anything on it now, but what all should I be looking for? I'll at least go back and double check all the supply lines, maybe bleed them again by slightly opening up each line at the injectors one at a time...anything else?

Thanks again everyone. Cheers.

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1980 300SD Turbo Diesel
"Bailey's. Mmm...creamy. Soft, creamy beige." - Old Gregg