Fuel Injectors

[James N Gagliardi <jg6r+@andrew.cmu.edu>]

Well, I came home from school to Vermont today and decided to try to
start my audi('81 Audi 5000 Diesel).  Even with only one functioning
glow plug, it started after some cranking.  It was about 15-20 degrees. 
Anticipating much colder weather in the month that I am home, I bought 4
glow plugs.  I replaced three of them(the fifth one is underneath the
injector pump, and I saw no way to get it out).  To make a long story
short, my car starts much better now, but I somehow managed to screw up
a fuel injector.  I think that it is leaking either out of the union
between the high pressure fuel line and the injector, or out of the side
of the injector(looks like unjector unscrews into two pieces?).  Does
anyone know how tight I can tighten those connections to try and stop
the leak?  Any other suggestions?  I'm sure most of you haven't ever
owned a diesel audi, but someone must have owned a diesel rabbit at some
point.
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