These are observations from the DGV on my 1980 MGB:
1: That's the vacuum connection. The PO of my car just left it open. I
connected it to the vacuum advance on the distributor (which I'm not sure
is working, but at least it's better than being open).
2: The throttle return spring on my carb is connected to a washer (with a
hole in it) on the exhaust manifold. It's only about 2"-3" long.
The ColorTune did a good job for me; my mixture was much too rich.
--Steve
At 11:04 AM 11/30/98 EST, you wrote:
>
>1. There is a small diameter tube (about 1/16") under the accel. pump. It
>looks like a vacuum connection, but this one has a ROOFING NAIL inserted
in it
>by the DPO! Since I don't think Weber specs roofing nails as accessories for
>their carbs, can anyone tell me what this tube is, and where it should be
>connected? Or will the carb operate correctly with the tube plugged? (I
will
>cap the tube with something that looks better than a roofing nail, if it will
>operate correctly without a vacuum connection, if, in fact, it is a vacuum
>line.)
>
>2. Where is the throttle return spring supposed to connect? Mine has a foot
>long spring connected to the radiator spill tank!
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