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I could have sworn I posted this before, but I couldn't find it
on the site, in the digests I get, or any responses to it, so I apologize
if I'm double posting, anyhow.
I went to a local VW shop and was about to replace my vac can and
trigger contacts when he told me that, new, that would cost me $200 and
although they aren't perfect, they most likely aren't causing my idle
problems. So now I'm debating between getting my dist rebuilt, or buying
another. To help in this decision, are the AB and L distributors (311
905 205 AB and 311 905 205 L) interchangeable? If yes, how would it
affect my engine, its performance, etc.? What is the difference between
the two?
Just so I can be sure that I'm not fixing something that doesn't
need to be fixed, here is what's going on. There are a few problems, but
they are all related to the idle so I'll only mention that: for one, I
can't adjust the idle and see no change whatsoever even if I take that
idle screw out, although the car will die when I turn it clockwise
enough. Plus, the idle is horrible, even though I got a good condition,
AT AAR with the wire and all, this affected no change. When the car
starts up it has a lower and steady idle, but when it warms up, depending
on where the timing is (I can't time it correctly since I can't get the
idle either anywhere near 850 RPM or it oscillates so much that it would
be pointless), it will either be a low steady idle (around 700 or 800)
under load but oscillating (from what I can recall) between, about, 550
and 750, and the lower it drops the higher it will go after that (so when
it nearly dies, it will go to 800), or if the idle is great under load it
will oscillate in neutral. Plus, the worse the idle is under load, the
more performance I get--more advanced=worse under load, retarded=worse in
neutral.
Also, more out of curiosity, could someone explain what the
graphs in Bentleys (chapter 3, pg 54-55) mean? I've got part of it
figured out, but if anyone has the time I would love to understand all
the parts of the graph so I can read them clearly=)
Thanks in advance.
Sincerely,
Christopher J. Valade
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