[Vwdiesel] return line on 84 TD jetta

[Kenneth E. Oldrid]

I'm confused here,
I am replacing a bunch of fuel lines on my 84 jetta turbo diesel. I replaced the
fuel lines feeding and returning from the injection pump, as well as the small
injector lines. I topped up the filter with ATF and started her up. She was
having trouble purging air out of the new clear intake line I Installed. 
I wanted to see how much fuel was being returned, so I ran the return line from
the IP to a bottle. No fuel is coming out, regardless of RPM! I remember
reading about a clogged return bango, so I removed it for inspection. This
bango bolt was different than the mercedes; it had a hollow shaft, but no
perpendicular exit hole near the top? I don't understand how the IP can
exchange fuel through this thing!
Well, I decided to try starting with the bolt removed to observe fuel. It took a
few cranks to start. Nothing came out for a few seconds, and than a tidal wave
of diesel emerged. It was as if it was clogged and released all at once.
Put it all back together, and next to nothing seems to be returning? I did turn
the fuel enrich screw 1/4 CW, with otherwise great results.

Ken