Farm Equipment - carburetor

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carburetor

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=164054
Printed Date: 31 Oct 2025 at 1:39am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: carburetor

Posted By: acd17toy
Subject: carburetor
Date Posted: 02 Sep 2019 at 6:28pm

Had the Zenith dual fuel carburetor rebuilt on my 1937 WC tractor still will not start with the rebuilt Zenith, put a good M S TSX on from my WD and tractor starts rite up. What could the problem be with the Zenith model 7078?

Replies:

Posted By: DaveKamp
Date Posted: 02 Sep 2019 at 7:18pm

Have you verified that fuel reaches proper float level?

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Ten Amendments, Ten Commandments, and one Golden Rule solve most every problem. Citrus hand-cleaner with Pumice does the rest.

Posted By: Rick(NC)
Date Posted: 02 Sep 2019 at 7:30pm

Does it flood after turning the crank several times? I had problems with mine when I first got it until I learned the combination of - full choke, crank - no choke, crank - and then it will fire if it is timed right.

Posted By: Sugarmaker
Date Posted: 02 Sep 2019 at 7:39pm

AC,

My suggestion would be to go back through the Z carb again. I had a WD carb I kept opening and switching parts and checking things till I got the right combo. Good luck, and good that you found that it was the carb.

FYI I like the Marvel carbs for some reason. I have not rebuilt a Zenith carb, but the D17 has one.

Nice work.

Regards,

Chris

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D17 1958 (NFE), WD45 1954 (NFE), WD 1952 (NFE), WD 1950 (WFE), Allis F-40 forklift, Allis CA, Allis D14, Ford Jubilee, Many IH Cub Cadets, 32 Ford Dump, 65 Comet.