The duplicate gasket stumped me for a while once, but then when you look REALLY
close at your engine, one is for the carb to spacer and the other is for the
spacer to manifold. AHA! Two gaskets needed!
I think you're really going overboard on the vent there...The chances of enough
dirt entering that vent hole to cause problems in the bowl is miniscule.
Autolites have been running on cars with that design for nearly 40 years with no
recalls to retrofit filters or baffles. If I remember correctly, and if the 4
barrel Autolite in my garage is any indication of your carb, the vent hole faces
the rear, so the chances of anything getting in there to begin with are quite
remote. You actually may be causing problems with the foam, as it eventually
will break down and get in the float bowl.
Gerard
Carb Tuning Page: http://www.bob2000.com/carb.htm
>
> THE LATEST QUESTION: The rebuild kit contains two exact duplicate carb
> base gaskets. Nothing in the instructions says anything about the
> gaskets. Should I use both?
>
> The carb is back together and about ready to go on. For those of you
> keeping track, I decided to block the holes in the top gasket, that were
> directly under the bowl vent hole, and punch a new hole way off in a
> corner, sort of like the original. I also added a bit of foam (open
> cell, tested for resistance to gas, etc) to the vent hole.
>
> My carb is not exactly like the one in the manual. The tag says:
>
> C4DF S
> A 5BB
>
> The acc pump resembles the alternative one shown on the last page of the
> carb section of the shop manual. Could this be an original (My car was
> assembled in the fall of '66) or a rebuilt installed by the PO?
>
> Stu
--
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