Carb ID

[srwilson]

I'm still in the learning process with my new toy! The PO had the carb changed out and I'm not sure of the model number (couldn't find it). Can someone ID it from theses photos? Also is there a particular post or site that could aid in tuning it?

TIA!!

[Fi8spider]

It's an ADHA or even possibly an ADFA, same as the late 131 Super Brava.
It should be stamped on the side of the base, not much between the two, I think mainly pollution provisions on the later ADHA.

Fiat carbi list here.
http://mirafiori.com/~pete/miscpics/fia ... _specs.jpg

Parts list here.
http://www.bitsofitaly.com/uploadedFile ... 8-7548.gif

Good carbi.

EDIT: Actually just noticed the 131 ink on the cam box in your photo so I think you have or at least should have the later ADHA.

[BEEK]

being that its a non electrojet, it is aftermarket, most likely a late version of a 34 adf,

[Fi8spider]

Could well be. Off a Ford maybe? Over here they used them on the 6 cylinder Falcon.

[CajunMike]

Looks to be a 34adf. The numbers are stamped on the side that faces the cams. They may be covered with oil. They are at the midline section. Not too hard to spot.

[srwilson]

Thanks for pointing me in the right direction, I found the number. It wasn't easy to find or see since it was on the same side as the intake. Lucky I have my trusty phone camera that can squeeze into places my big head can't fit.

Looks like it's a 32 ADF 64. Here's the pic.



So is this a good carb to have or should I go shopping? I know nothing about these carbs.

I'm having a bit of a rough idle so this is what I've done so far.
Replaced:
Dizzy cap
Rotor Button
Plug wires
I've also timed the motor to 10° btdc (it's a 79)

This has helped, especially since the cap was cracked, but still it lopes a bit in idle. So that is why I'm looking at the carb and how maybe to adjust it. I didn't feel I could go by the shop manual since it was obviously not the carb it was built with, but maybe I'm wrong about that.

Any help appreciated!

[BEEK]

depends on engine modifications, the 32 adf is a great improvement over the stock carb, but the intake manifold should be changed to a single plane, that will help the most at this point. the 32 adf is a good carb, a version of that came stock on the 1.8 fiat from 75-78