Model A Carb.

Discuss all things Model T related.
Forum rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules

Topic author
Dave Loving
Posts: 20
Joined: Sun Oct 20, 2019 6:42 pm
First Name: David
Last Name: Loving
* REQUIRED* Type and Year of Model Ts owned: 1910 Touring; 1911 Torpedo; 1923 Roadster
Location: Mansfield, MA

Model A Carb.

Post by Dave Loving » Tue Oct 06, 2020 9:18 am

Does anyone have any experience running a Model A Carb in a T?
Is it a good idea?

Thanks,
Dave


ModelTWoods
Posts: 1049
Joined: Tue Jan 08, 2019 10:53 am
First Name: Terry
Last Name: Woods
* REQUIRED* Type and Year of Model Ts owned: 1927 Model T coupe, 1926 4 door sedan
Location: Cibolo (San Antonio), TX
MTFCI Number: 20180

Re: Model A Carb.

Post by ModelTWoods » Tue Oct 06, 2020 11:40 am

Its been done for decades; possibly even as soon as the Model A came out. The drawback is it is an updraft carb, requiring a custom or an updraft intake manifold, usually requiring a corresponding exhaust manifold. This is pretty easily solved, but the harder drawback is the choke and throttle linkage modifications required. Lastly, a Zenith Model B carburetor is a far superior carb to a Zenith Model A carb, as far as performance goes, because of a modification that Zenith made to (if I'm not mistaken) the acceleration circuit in the carburetor.
BTW: There were at least 3 different model of the Zenith Model B carb made by Zenith. At least two were made for use with a fuel pump (which the 1932 Model B had) a standard carb and a high altitude carb, and one was made as a replacement for Model A's with a gravity feed fuel system.

User avatar

TonyB
Posts: 663
Joined: Fri Jan 04, 2019 11:15 am
First Name: Tony
Last Name: Bowker
* REQUIRED* Type and Year of Model Ts owned: 1914 touring
Location: La Mesa, CA
MTFCA Number: 32
MTFCA Life Member: YES
Board Member Since: 2005

Re: Model A Carb.

Post by TonyB » Tue Oct 06, 2020 11:49 am

One of my customers runs Model A manifolds on all his Ts complete with Zenith or Tilletson (?) carbs and custom exhaust systems. They run great and are superior to the Model T set up and that includes the Stomberg OF that I use. Except for my requirement to be reasonably authentic, I’d run them as well.
Tony Bowker
La Mesa, California
1914 Touring, 1915 Speedster, 1924 Coupe.


Tmodelt
Posts: 167
Joined: Mon Jan 07, 2019 3:48 pm
First Name: Kim
Last Name: Wynn
* REQUIRED* Type and Year of Model Ts owned: 1923 Roadster & 1927 Speedster
Location: Morris, IL

Re: Model A Carb.

Post by Tmodelt » Tue Oct 06, 2020 12:01 pm

I have an updraft manifold that fits my T. I also used an original T exhaust manifold with it when I ran it. I now have a custom built single downdraft set-up on one T Speedster and a "Zenith" dual downdraft set-up on another T Speedster. All three run great.


Herb Iffrig
Posts: 1513
Joined: Sun Jan 06, 2019 11:47 am
First Name: Herb
Last Name: Iffrig
* REQUIRED* Type and Year of Model Ts owned: 1911 Torpedo, 1918 TT Hucksters
Location: St. Peters, MO

Re: Model A Carb.

Post by Herb Iffrig » Tue Oct 06, 2020 12:01 pm

bryne kingston.jpg
Are you talking about this Model A carb?

User avatar

Jem
Posts: 192
Joined: Sun Jan 06, 2019 5:37 pm
First Name: Jem
Last Name: Bowkett
* REQUIRED* Type and Year of Model Ts owned: 1909 Touring #9267
Location: Spalding United Kingdom
Board Member Since: 1999

Re: Model A Carb.

Post by Jem » Tue Oct 06, 2020 5:16 pm

There used to be an old guy here who ran an SU off a 1960 Morris Mini along with the Mini distributor running horizontally from a bicycle chain drive. Went very well.

Post Reply Previous topicNext topic