Late 31 zenith 2 carb rethread

[sphooch]

Has anyone ever repaired the threads in the side bowl gas inlet?? its 1/2--20 N.F. . I ran a tap through but it leaks like a sive from there . the threads are in pretty bad shape as you can see from the picture. I'm thinking maybe using a heli coil . but don't know if it will work. Maybe braze the thread and then re-tap? this is gonna be a tough one,any help is always appreciated. thanks THE HOOCH

[katy]

From the looks of the picture it looks like you need to reface the seat for the ferrule, or maybe use an O-ring in there. That's where it seals.

[rocket1]

I would drill out the threads and press in a steel bushing and tap the bushing for 1/2-20 nf It is worth trying to save,scarce.

[Big hammer]

When a modern blows out a spark plug, helicoil makes a bushing that is threaded into the head. Maybe they make the 1/2-20 NF ? Most local auto parts store can help.

[johnbuckley]

IMHO not enough metal left to safely take a helicoil.

[Gary WA]

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Originally Posted by sphooch

Has anyone ever repaired the threads in the side bowl gas inlet?? its 1/2--20 N.F. . I ran a tap through but it leaks like a sive from there . the threads are in pretty bad shape as you can see from the picture. I'm thinking maybe using a heli coil . but don't know if it will work. Maybe braze the thread and then re-tap? this is gonna be a tough one,any help is always appreciated. thanks THE HOOCH

I have a few spares any special markings on it? I'll send you one.! throw it away!not the ones in the picture but others.

[160B]

The carburetor top you have is for the late 1931 with indented firewall, the sediment bulb attaches to the carburetor, and the gas line attaches to the sediment bulb. photo #1

If you are using the sediment bulb the seal between the carburetor and the sediment bulb is made with two gaskets, one at the carburetor inlet and one at the head of the bolt that is used to attach the sediment bulb to the carburetor. The mating surfaces on the carburetor and the sediment bulb where the gasket seats, has to be a good flat parallel surface to allow the gaskets to seal. Photo #2


If you are using this carburetor without the sediment bulb the seal of the gas line is made between the seat at the inlet connection to the carburetor and the ferrule on the gas line. The seat at the inlet connection needs to be resurfaced using a Dremel ball grinding stone #911 so the ferrule on the gas line will seal. Photo #3

[1931 flamingo]

The title says : Zenith 2, would not this be a Zenith 3 top??
Paul in CT

[sphooch]

hello Gary, What a generous offer, thank you very much. I see only the Z stamp mark on both sides of the carb. under the throttle plate. I'll pay you the expenses . heres my address and once again thank you very much. Steve Pavlu 869 Grove ave. Laurence Harbor N.J. 08879

[160B]

Originally Posted by 1931 flamingo

The title says : Zenith 2, would not this be a Zenith 3 top??
Paul in CT

A Zenith 3 would have a reinforcing rib at the rear ear of the mounting flange.

see the photo in the below link

http://www.fordgarage.com/pages/zenith3.htm