Lee "still wondering what I'm doing with an MG" Daniels writes:
>> But the real question is: Exactly how does one do the needle adjustment
on
>> these carbs (assuming that you do indeed have the tool that fits down in
>> the tube). Can this be done with the engine running, or must you shut
>> it down (since the damper has to be out)? After rebuilding the carb, I'm
>> running a little rich.
The Haynes and Bentley shop manuals both have good directions on
tuning the Zenith-Stromberg on the rubber bumper MGB. You do adjust
the carb with the engine running. The oil in the damper has no effect on
the idle mixture. You are supposed to do a rough adjustment with the
needle (use the special tool so that you do not risk breaking the diaphram.),
followed by a fine adjustment with the air bypass screw on the side. (It's
a white plastic nob with a brass screw sticking out of it.) I never noticed
that
the fine adjustment had any effect on the way the car idled or ran.
>> Finally, I was cleaning out the boot of said recently acquired '76 MGB,
and
>> found an (apparently from-the-factory) case containg a pair of bent bars.
>> They fit together to look vaguely like a roadster-top hoop, with a small
>> flange welded onto each end. Are these the "tonneau bars" that someone
else
>> recently discussed? What do you do with these things?
These sound like the tonneau bars. You fit the two pieces together so
that they make a sort of "C" shape with the open end facing the
front of the car and the flanges pointed down. The flanges fit into a pair
of
slots just behind the doors. You put the hood down and roll it up as
described in the owner's manual. Then you put the tonneau bar in
place and cover the top with either the "boot cover" or the tonneau cover.
The tonneau bar keeps the tonneau cover from sagging.
Good luck with your MG
Peter Schauss
pschauss@aol.com
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