tinydog sez:
More mysterious is what you are doing about your rotted spring perches?
-------------- Original message from Michael Rowe <mdrowe@optonline.net>:
--------------
> All right all you mystery lovers. My "new" engine starts perfectly and runs
> easily - on two cylinders, 3 and 4. Cylinders 1 and 2 are flooded out and
>will
> not fire. At one point, cylinder 2 was firing enough to make the plug sooty.
>
> Cylinder 1 was always wet with gas. Pretty much everything is either new or
> cleaned and checked. Electronic ignition, new wires, rotor, cap, coil plugs.
>
> Spark to all cylinders confirmed by inline checker. Compression mid 170's on
>1,
> 2, and 4, mid 160's on 3 (which is firing). The same problem occurred with
>two
> different sets of carbs.
>
> Here's the fun part. When the carbs were set at 12 flats down, plugging the
> front carb caused a large increase in speed. Plugging the back carb caused
> instant death. I leaned the front carb pretty much all the way to the top
> because cylinders 1 and 2 were flooding. In that condition, I covered the
> intake with my hand and absolutely nothing happened, as though there were no
> airflow through the front carb at all. The vacuum felt very weak compared to
> the rear carb. There does not appear to be anything wrong with the
>butterfly.
> No evidence of leaking by an ether test at the gaskets, etc. Later, I even
> stuck my finger in the manifold to see if there were a mouse nest or
>something.
>
> I am a complete newbie, but my mechanic/tutor has 30 years experience with
> MGB's. We are baffled.
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