(800) 853-2651
SHOP NOW

Float height Super A Zenith carb

M

mkirsch

Well-known Member
The carburetor has never been right. Always starts hard and blows a cloud of black smoke.

When I pulled the air cleaner hose, it was clear that the gas is running over into the air cleaner.

Found a heavily damaged float. Replaced it with new. Put a basic carb kit in it, new needle and seat, blew out all the passages. Set the float to 1-5/32" per the only information I could find on Zenith carburetors.

The gas is still running out into the air cleaner.

It has the later style Zenith carb. The model number is "none of the above" in any of the references I can find.

What is the correct float height?
 

Did you thoroughly clean the NEW needle valve and seat before you installed it? I know it should NOT be necessary, but it IS.
 
Well, I can't figure out what I'm doing wrong.

Screw the seat into the carb body.
Stick the needle in the seat.
Put the float on top of the needle.
Stick the pivot pin through the float.

Needle opens and closes with the movement of the float.

I guess the next step is to pull the bottom half of the carb off while it's still on the tractor, and see if the needle is actually stopping the flow of gasoline.

What's weird is that it doesn't overflow continuously. It gets to a certain point and seems to stop there.
 
(quoted from post at 06:46:02 08/14/12) Well, I can't figure out what I'm doing wrong.

Screw the seat into the carb body.
Stick the needle in the seat.
Put the float on top of the needle.
Stick the pivot pin through the float.

Needle opens and closes with the movement of the float.

I guess the next step is to pull the bottom half of the carb off while it's still on the tractor, and see if the needle is actually stopping the flow of gasoline.

What's weird is that it doesn't overflow continuously. It gets to a certain point and seems to stop there.
Click to expand...

Did you test that new float before installing? It's another thing you should NOT need to do, but that's just how it is in today's world.
 
You must log in or register to reply here.

Similar threads

J
Zenith carb
Replies
5
Views
492
Geo-TH,In
Geo-TH,In
O
IH 354 carb issue
Replies
12
Views
574
used red MN
U
J
Cockshutt 550 / Zenith 267 carb rebuild / purchase?
Replies
11
Views
708
JohnnyUnknown
J
L
Carter Carb float height - Farmall SA
Replies
5
Views
477
Jim Becker
J
W
Farmall M Carb.
Replies
4
Views
454
WiJay
W
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy

Back
Top