I don't have an answer but I do have a possiblity. Is the gas cap supposed to
be a
sealed cap or vented cap. If it is supposed to be vented and a sealed cap is
put
on what are the chances of gas in the tank expanding and forcing the carb to
overflow? I have heard of this problem somewhere before but I don't remember
where.
Rod Randle
'78 Spit
r-james@tamu.edu wrote:
> 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
> -------------------------------------
> 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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