With all this talk about timing and vacuum advance, etc., it
reminded me of a thread 1-2 months ago concerning how to set
the timing on a B running Webers. Is the original poster out
there lurking around, because I have a few questions I'd like
to ask.
Here's my setup: I have a '77 MGB with a Lumenition kit installed.
I replaced the stock ZS carb with a Weber 32/36 DGV with manual choke.
I'm still running with vacuum advance (at least I think since I connected
the vacuum line to the Weber via the *switch* located near the
master cylinder). It connects to the Weber on the engine side of
the carb by way of a small 1/4'' tube which protrudes from the
carb body. Is this indeed the correct connection? I ask because
I don't see much difference while driving whether I have the vacuum
line connected or not. I know the line from the distributor to the
switch is clear, and the line from switch to carb is clear. I
believe the switch is ok also.
The original poster mentioned setting the timing very different
from stock. I'd like to know what that setting is, and if my
configuration is ok. The car runs much better now with the Weber,
but I have some concerns since the idle seems a bit rough (especially
when cold), and initial pickup - when first stepping on the accelerator
with some authority - leads to a bit of hestitation. I realize some of
these symptoms may be due to the Weber itself, but I'd like to be
able to rule out any timing problems.
Any response would be appreciated.
Steve
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