OK, I have a question. I have the Inj. out and am changing the seal/o-rings. I decided to check the injectors so I hooked up to a line and rolled over. Nothing. No fuel sprays out of the injectors. I disconnected the fuel line in to the pump and there is fuel there, there is also fuel on the return line. Is there supposed to be spray from those inj when just hooked like that? I thought I could have a look at the pattern to see if the inj was good, crude I know but effective maybe. So what is wrong? what do I check next? I can safely say the F Pump is working and the filter is not plugged.

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1987 300 TDT
1990 300 SEL