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06-19-2019, 07:07 AM | #1 |
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Join Date: Aug 2010
Location: Cleveland, Ohio
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Tillotson carburetors
Recently obtained several Tillotson carbs that have an accelerator pump.
Havent been able to determine the model designation for them. Any experience using them on an A engine? What was the OEM application for them. Are parts available? Sorry for all the questions. Thanks Ken |
06-19-2019, 07:29 AM | #2 |
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Join Date: Jul 2010
Location: upstate NY near Mass border
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Re: Tillotson carburetors
I have never heard of an accelerator pump on a Tillotson but we learn every day something new. There are people on this forum that carry parts for these and can rebuild them. I would try a search and see what comes up. Good luck. Jack
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06-19-2019, 08:22 AM | #3 |
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Location: Sacramento
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Re: Tillotson carburetors
Saw one at the swap meet..passed on it ,bought a couple of B carbs instead.let us know how the pump wells look,imagine that pot metal didnt hold up too good.
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06-19-2019, 08:35 AM | #4 |
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Location: Cleveland, Ohio
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Re: Tillotson carburetors
Talking with one of our club members, sounds like this “pump” is more like a part throttle enrichment circuit (power valve) rather than an accel pump.
I have two of them in transit, will try them on the test stand. |
06-19-2019, 10:09 AM | #5 |
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Re: Tillotson carburetors
Tillotson F1B has a pump. Not sure what it pumps or why. Not usually a preferred carb (not my experience but others report not as good as Tillotson X or XF)
Tillotson F1B below. Joe K
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06-19-2019, 12:02 PM | #6 |
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Re: Tillotson carburetors
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06-19-2019, 01:48 PM | #7 |
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Re: Tillotson carburetors
No parts available for F1B I have heard.
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06-19-2019, 01:48 PM | #8 |
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Join Date: Aug 2010
Location: Cleveland, Ohio
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Re: Tillotson carburetors
The carbs I purchased say Tillotson on them.
I have an engine on my test stand that I’ll try one on after rebuild. |
06-19-2019, 08:53 PM | #9 |
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Join Date: Feb 2015
Location: Georgetown, TX
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Re: Tillotson carburetors
Love the Tillotson on my A. Very easy to rebuild.
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06-19-2019, 08:58 PM | #10 |
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Location: Southern Maine
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Re: Tillotson carburetors
Smith & Jones has gasket sets for these, the float and needle valve are the same as Zenith. They are held together with one bolt like a Zenith but because they are pot-metal warping is a problem.
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06-20-2019, 09:35 AM | #11 |
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Location: Cape Cod MA
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Re: Tillotson carburetors
My 1930 Coupe had a Tillotson F1B carburetor when I got it many, years ago. I drove it 50 years unrestored with the Tillotson F1B and had zero trouble and gas mileage 25-26 mpg. I estimate I probably drove it at least 150,000 miles o in those years as it went from only car, to second car. Then came a restoration in the early 1990's and a Zenith installed then, and a switch to antique use. Performance Tillotson to Zenith no noticeable difference. Gas miles dropped about 2 or 3 mpg. The Tillotson F1B is now on a shelf in storage, and is not warped. And yes I have owned this Coupe a long time, 78 + years.
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06-20-2019, 01:09 PM | #12 |
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Join Date: Feb 2015
Location: Georgetown, TX
Posts: 535
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Re: Tillotson carburetors
No problem to fix a warped Tillotson. I clamped and baked in the oven and all back to square and on my car. I posted pics in a prior thread.
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06-20-2019, 02:23 PM | #13 |
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Location: Alabama
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Re: Tillotson carburetors
Years ago when good usable Zenith carburetor parts were difficult to obtain , the new Tillotson model X carbs that JC Whitney sold for less than twenty dollars was one of the best deals available . After a few years when the pot metal Tillotson warped it never seemed to perform as well , no matter what was done to correct it . When good usable Zenith carburetor parts became available and after buying and watching the video Carburetors and carbohydrates I decided to go back to my original cast iron Zenith carbs .
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