ADFA spigots

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PaulC
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Joined: Tue Oct 31, 2017 5:04 pm
Your car is a: 1979 Fiat Spider 2000
Location: Maine

ADFA spigots

Post by PaulC »

Here's a shot of my recently refurbished ADFA carb that will go with my also refurbished single plane manifold.
I know the two larger fittings on the left are fuel in (bottom) and out (top).
And I think the small horizontal fitting on the right is for the vacuum advance.
But what is
1 - the large horizontal fitting on the far left (behind the fuel filter hex cap)
2 - the fitting in the center under the accelerator pump and
3 - the small slanted one on the far right

EGR will be gone, but there is still the charcoal cannister.
Should any of these be capped off?
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OttawaTom
Posts: 43
Joined: Fri Sep 16, 2016 7:49 am
Your car is a: 1976 Fiat 124 Spider
Location: Ottawa, ON

Re: ADFA spigots

Post by OttawaTom »

Nice and clean!

The large fitting on the left goes to the charcoal canister (If your's is the same as mine, it'll be the spigot that comes off the side of the canister).

The one under the accelerator pump goes to the air cleaner next to the hose from the vapor separator.

The slanted one on the right is the return from the charcoal canister (the top spigot on the canister).

Hope that helps!

-Tom
PaulC
Patron 2022
Patron 2022
Posts: 265
Joined: Tue Oct 31, 2017 5:04 pm
Your car is a: 1979 Fiat Spider 2000
Location: Maine

Re: ADFA spigots

Post by PaulC »

Thanks Tom! Just what I was looking for.
Clean now as I just rebuilt it from a pretty grubby specimen I got off eBay for $50.

Image
Image

Still couldn't get it nice and shiny like new but it'll do.
Let the transformation begin!
SteinOnkel
Posts: 1000
Joined: Tue Feb 19, 2019 9:31 pm
Your car is a: 1978 124 Spider 1800

Re: ADFA spigots

Post by SteinOnkel »

Isn't the one underneath the accel pump a vent for the fuel bowl?
18Fiatsandcounting
Posts: 3798
Joined: Fri Mar 15, 2019 11:23 pm
Your car is a: 1969 and 1971 124 spiders
Location: San Francisco Bay Area

Re: ADFA spigots

Post by 18Fiatsandcounting »

The 32AFDA and 34ADF reference guide by Brad Artigue will likely be helpful in answering some of these questions:
http://www.njfiats.org/joomla/images/st ... er_adf.pdf

-Bryan
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