Tillotson carb

KEN2939 said:
Why do some A’s have a Zenith carb and others have a Tillotson carb? Is it by model or year?
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All the OEM Model A's were either Holley or Zenith carbs (look the same, cast iron body, details differ like venturi and brass vs steel fittings).

Tillotson was aftermarket, but I do wonder when they came out.
We ran Tillotsons back in the 1960s so had to be before then.
 
Tilly’s were like a JC Whitney thing. You could buy a new Tilly for less than a Zenith rebuild. I don’t think that it was intended to be an upgrade so much as it was an inexpensive replacement.
Now I will throw gasoline on the topic and say that the Marvel is by far the best! LoL.
 
When Zenith stopped making A/B Zenith carbs, Ford started suppling Tillotson and Marvel carbs as replacements, even assigning Ford part numbers to them.
 
Herb Concord Ca said:
When Zenith stopped making A/B Zenith carbs, Ford started suppling Tillotson and Marvel carbs as replacements, even assigning Ford part numbers to them.
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Do you know when the Tillotson X came out & when it got in the Ford books?
My 1950 Ford Book shows the A carb xuperceded by the B carb, but no listing for a Tillotson.
But from this thread & others, Tillotsons were on cars by 1960-62 so had to be in the 1950s somewhere
 

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And you all know about Marvel Mystery Oil, right? Same guy, he created MMO because his carburetors were having problems with bad fuel etc. I don’t know how much money he made selling Marvel carburetors but he no doubt made more selling MMO. FWIW, if you had an opportunity to drive a Model A with a downdraft carb (that has an accelerator pump!) such as a Stromberg, Weber, etc., you would throw your updraft (regardless of which one) away.
 
WerbyFord, I have the Ford part numbers, but don't know the date they were introduced.
Tillotson was assigned, B-9510-A3. The Marvel Schebler B-9510-A2. The Marvel Schebler part number used for Model A was 8-2843. Some of this information came from an article by Steve Pargeter in the Restorer, July/Aug 1995.
 
jeepguy1948 said:
And you all know about Marvel Mystery Oil, right? Same guy, he created MMO because his carburetors were having problems with bad fuel etc. I don’t know how much money he made selling Marvel carburetors but he no doubt made more selling MMO. FWIW, if you had an opportunity to drive a Model A with a downdraft carb (that has an accelerator pump!) such as a Stromberg, Weber, etc., you would throw your updraft (regardless of which one) away.
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No argument, but a friend running a Weber just had his engine fill with gasoline due to a leaky shut-off valve. So each type have their own issues.
 
Herb Concord Ca said:
WerbyFord, I have the Ford part numbers, but don't know the date they were introduced.
Tillotson was assigned, B-9510-A3. The Marvel Schebler B-9510-A2. The Marvel Schebler part number used for Model A was 8-2843. Some of this information came from an article by Steve Pargeter in the Restorer, July/Aug 1995.
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Good lead thanks!
Found this, some fun info here, Zenith Model B style replacement for Model A but different venturi & needle valve.

https://www.fordgarage.com/pages/nosbzenithcarb.htm
 
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