Atwell:
Regarding fuel leakage after shutdown from the Spitfire's
ZS carb:
I have EXACTLY the same problem, and it is at yet uncured. In
fact, the other day enough fuel siphoned out on the floor, thru
the carb, to make a puddle nearly as large as the car, plus at least
a cup in the air cleaner. The tank was full, and a significant fraction
of a full tank was gone.
I have repaced the float valve (tried two different new ones, and two different
used ones that seemed to be ok), set the float (more than a dozen times)
checked the float for bouyancy (twice). I can't figure it out, but it
must be a problem with the float valve. The only way I could make it stop
is keep the float set very low (0.975 instead of 0.675 inch!). Then it ran
too lean, though.
I just bought a used Weber DGAV, which will rid me of the ZS from hell, this
weekend I hope.
Still, I would like to know why I couldn't fix a simple float valve, or was the
problem something else. My fuel was coming out of the small port in the throat
of the carb, not from a leaking carb body.
Ray
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Ray W. James, P.E., Ph.D.
Texas Transportation Institute
Civil Engineering Department
Texas A&M University
College Station, TX 77843
Phone (409)845-7436; Fax (409)845-3410
E-mail: r-james@tamu.edu
Date: 3/12/98 Time: 5:29:17 PM
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