34 ADF rebuild and fitment

[131]

Pull the jet out of the solenoid, cut the end off the solenoid pin, refit the jet and the solenoid is now just a jet holder. The solenoid was intermittent on my ADFA recently, I cut the end of the pin and problem solved.

[bradartigue]

I like a paper filter because it's actually a filter....foam just seems to build up a layer or greasy crap. But don't think you'll find those filters at auto zone, they don't exist there. Order a replacement and you're good for 10 years or so.

Once you get that manifold off everything comes off with it, you'll see what I mean. The 2000 manifold has to go though, don't put that big boy carburetor on it, it would be a dud.

[MrJD]

Really? I thought I had seen the small paper filters at autoparts stores? The 34adf will be going on here eventually (going to be a few months before I am ready to get into the engine compartment):


Gotta head to lowes and buy some brass fittings to block off some manifold holes though. Wish I had a tig welder...

[fiatfactory]

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[MrJD]

The manifold came off a 78 124. Came to me with a 32 adfa still attatched.

[fiatfactory]

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[BEEK]

this is a lancia manifold, for comparison purposes, also someone has modified this manifold to accept a 124 style carb. see the second picture

[MrJD]

While everyone is here... Why do I see carb spacers advertised here and there? Is this to increase atomization, or intake velocity? Is there any real reason to use one?

[BEEK]

i prefer the thick one you see on the manifold that i posted, the only problem you might have with that with a adf, is the carb may be too tall

[bradartigue]

While everyone is here... Why do I see carb spacers advertised here and there? Is this to increase atomization, or intake velocity? Is there any real reason to use one?

They are multi-purpose, keeping the carburetor isolated from vibration, keeping the carburetor cooler (and thereby the fuel is cooler, reducing vapor lock), and improving torque by improving atomization. On the latter, atomization, the relatively tiny spacers on the FIATs have minimal affect. I also understand that on a multi-plane manifold, and some FIATs had these, if you space the throttles higher above the manifold that the optimal mixture occurs sooner, reaching the high plane in a more suitable state for combustion. I wouldn't really care to test this, as the dual plane manifolds FIAT used were not performance oriented to begin with.