Carburetor question ...

Re: Early Double Venturi - Carburetor question ...

No luck so far. I keep getting a message that "security token was missing". Anyone ever had this happen, what is the cure?
 
Benson said:
Thanks Ron,

I will check the lower casting tomorrow to see if it has the drilled boss and pin.

But I am pretty sure that this one is not drilled and also I think this one has the cap and main jets offset making it a single venturi casting, unlike the double venturi ones that have the jets inline.

Off topic: If the early upper casting is paired with a single venturi lower casting what problems could I expect?
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Ron,

This lower casting is in fact the newer one as you posted.

But it has un-drilled flat bosses on both sides as you said. So Ford must have been using up the last of the early castings.
 
Re: Early Double Venturi - Carburetor question ...

Benson,

I suspect that Zenith just changed the location of the main and cap jet location but did not remove the bosses front and back from the mold.

You really need to get a copy of the Judging Standards as all the little differences in the upper and lower housings appear in the carburetor section, then you can make your carburetors match, even thou you may not be having your car judged.

Ron
 
Benson said:
Are you looking at:

1. The 1994 version of page 1-8 with the table? ( Page 1-8 of 2011 version is sediment bowl info)

2. Or some where in the 2011 version?


3. Or Some other version of the Restoration Guidelines?


Thanks
Click to expand...

Sorry I didn't answer sooner folks...
I am looking at a chart on page 12 of the Area 1:engine compartment section on the 2011 restoration guidelines and judging standards. I may not be reading the chart info correctly. Still a newbie...
 
Re: Early Double Venturi - Carburetor question ...

Trying pictures again. Bottom picture are the throttle lever,and the choke lever Jan. 1928 for the Zenith double venturi, very hard to find ,they are steel and nickle plated
 

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Re: Early Double Venturi - Carburetor question ...

Ron's picture of the early Zenith double venturi is right on. I have been looking for a bottom for the early double venturi like Ron's for a long time, have 2 tops with the Z on the engine side, but no bottom. If anyone has one please let me know.
 
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Re: Early Double Venturi - Carburetor question ...

Thanks to Ron and Carb Guy for all of the good photos and info on these early carburetors.
 
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