Go Back   The Ford Barn > General Discussion > Model A (1928-31)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 10-02-2018, 09:27 PM   #1
28
Member
 
Join Date: Sep 2017
Location: Costa Mesa, CA
Posts: 49
Default Tractor carburetors

Anyone have experience with carbs from tractors on their A?

Couple of examples from eBay like these.

https://www.ebay.com/itm/251234R91-C....c100005.m1851

Or

https://www.ebay.com/itm/New-Heavy-D...item41c9986b25

Not that I’d buy these as I’d assume these are cheap Chinese quality but I’m sure you can get a nice original that could be rebuilt.

Wondered about this for a while and after reading the marvel carb thread, it got me thinking again.
28 is offline   Reply With Quote
Old 10-03-2018, 08:57 AM   #2
100IH
Senior Member
 
Join Date: Dec 2011
Location: SW Idaho
Posts: 970
Default Re: Tractor carburetors

Fcub too small. used one would be likely more than $45.00. N ford likely closer. need to match displacement of engines at a starting point. New zenith repo. or start going to swapmeets.
100IH is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 10-03-2018, 09:28 AM   #3
DHZIEMAN
Senior Member
 
Join Date: Dec 2016
Location: Sunrise Beach, Mo
Posts: 439
Default Re: Tractor carburetors

I have a massey 165. I have had a Marvel Schebler and a Zenith on this tractor, I prefer the Zenith, it has a high speed jet adjustment. With that said as I think about your question, Carbs for a tractor or for a auto were designed keeping in mind the needs of the vehicle they were made for. A tractor pretty much runs at low RPM most of the time or with implements running at 540 off the pto, so the power curve for the engine and carb get set up to be at the speed the engine will be used most. On a car, such as a model A Ford, speed and engine speed vary a lot more and on an automobile, a Carb is designed to run from Idle to full speed and sometimes hold at full speed a lot more than on a tractor. What I am basically saying is a carb is designed for its intended use. You can play around and experiment but I would suggest finding a Marvel Schebler for a Model A ford. They are around and there was a Marvel Schebler sold by Sears under a Sears model number.
DHZIEMAN is offline   Reply With Quote
Old 10-03-2018, 05:54 PM   #4
ed thibodeau
Senior Member
 
Join Date: May 2010
Location: Pinckney, Mich.
Posts: 174
Default Re: Tractor carburetors

The ford 8n carb has a different hole spacing for mounting.
ed thibodeau is offline   Reply With Quote
Old 10-03-2018, 06:04 PM   #5
WHN
Senior Member
 
Join Date: Mar 2017
Location: Connecticut Shoreline
Posts: 1,815
Default Re: Tractor carburetors

If you are looking for a good running car, you need a correct carburetor.
WHN is offline   Reply With Quote
Old 10-03-2018, 07:20 PM   #6
monto
Senior Member
 
monto's Avatar
 
Join Date: Apr 2015
Location: NH
Posts: 182
Default Re: Tractor carburetors

Sponsored Links (Register now to hide all advertisements)
Years ago, had a Ford Model 1841 loader. 4cyl. OHV with an updraft carb. Can't remember who built the carb, or if it would have bolted up to an A manifold, but never had a problem with it for 20 years.
__________________
'30 Coupe
monto is offline   Reply With Quote
Old 10-03-2018, 07:39 PM   #7
michael a
Senior Member
 
michael a's Avatar
 
Join Date: Feb 2015
Location: Lone Jack Missouri
Posts: 381
Default Re: Tractor carburetors

The answer to your question you sure almost any carburetor off a tractor updraft will work on Model A with an updraft manifold to make it perform correctly you have to match the intake hole from the carburetor to match the hole in the manifold. You can go as far and use a bigger carburetor intake whole and hug the manifold out to match it it doesn't make any difference the jetting is what makes the difference in how your car will run and as far as the reference goes about steady RPM on a tractor versus a car you will find that the governor does all that work

Sent from my SM-J700T using Tapatalk
michael a is offline   Reply With Quote
Old 10-03-2018, 09:14 PM   #8
BillLee/Chandler, TX
Senior Member
 
BillLee/Chandler, TX's Avatar
 
Join Date: May 2010
Location: The sticks of east Texas
Posts: 474
Default Re: Tractor carburetors

Zenith makes a modern Model A replacement carburetor that works great. It is NOT for a fine point car but it works well otherwise.
Attached Files
File Type: pdf New Zenith carb instructions.pdf (885.3 KB, 66 views)
__________________
Bill Lee
http://www.CedarCreekAs.org
BillLee/Chandler, TX is online now   Reply With Quote
Old 10-03-2018, 11:21 PM   #9
Y-Blockhead
Senior Member
 
Y-Blockhead's Avatar
 
Join Date: Jul 2011
Location: Redondo Beach, CA
Posts: 5,817
Default Re: Tractor carburetors

Quote:
Originally Posted by BillLee/Chandler, TX View Post
Zenith makes a modern Model A replacement carburetor that works great. It is NOT for a fine point car but it works well otherwise.
These Zeniths are "Air Balanced" and work well with an air filter.
Y-Blockhead is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 08:17 AM.