Welcome! Please use the navigational links on your left to explore our website.

Company Logo Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads
Tractor Parts
Salvage

Community
Discussion Forums
Project Journals
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Galleries
Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Articles
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs
Glossary

Miscellaneous
Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Kountry Life
  
Ford Tractors Discussion Forum
Order Ford NAA Parts Online

NAA carburetor still flooding

Welcome Guest, Log in or Register
Author  [Modern View]
Arvin Haslem

10-27-2018 14:38:36




Report to Moderator

I posted about this a while back. I rebuilt this Marvel Schebler carburetor and it starts leaking fuel out of the air intake when I turn the fuel on. I have tried 3 different floats. As per advice on the previous posting I installed another new needle and seat and dropped the float level to 5/16. I installed the carburetor and it still leaked. I removed the carburetor, removed the float bowl and filled It full of fuel. No leak. I fastened the carburetor top upside down to the fuel line. No leak. It would flow if I held the float open. I don't see any cracks in the carburetor. The bowl gasket shows full contact so I don't think it is warped. I can hear the float move when I roll the carburetor over in my hands. The carburetor is cast iron. TSX 706. I have successfully rebuilt several of these Marvel Schebler carburetors. This one is kicking my butt.

If I have to replace the carburetor where is the best place to buy one? Would a Zenith be a better choice?

Thanks to everyone who has posted.

[Log in to Reply]   [No Email]
sotxbill

12-16-2018 07:59:24




Report to Moderator
 Re: NAA carburetor still flooding in reply to Arvin Haslem, 10-27-2018 14:38:36  
Now you can buy a brand new carb on ebay for 58 bucks with free shipping, its hard to shell out 60 bucks for carb kit. I try to rebuild them by just cleaning them and usually do ok as long I dont tear the gasket on the cleaning... but now I can get a new N series carb for 39 bucks and jubilee or 600 carb for 56 bucks, it pretty hard not to just order them instead of a rebuild kit.

I do see a lot of problems where the needle sticks in the seat housing due to the external_link gas goop. So I have to carefully clean the inside of the seat housing to allow the needle to move freely. I have also seen where the seat is too long and takes an extra gasket to make it seal.

Also have had a few where there something in a passage that I cannot clear, with cleaner, or air pressure, or with a welding tip cleaner.

So now more and more, if the first good cleaning does the job??, and by the second tear down cleaning, I ordering a new cheap, free shipping carb and move on the other problems with the tractor. In season all of the tractor will get to work in the field a bit before the final paint and clean up. Winter, not so much as they sit around like a bunch of women and look pretty.

[Log in to Reply]  [No Email]
sotxbill

12-16-2018 07:50:27




Report to Moderator
 Re: NAA carburetor still flooding in reply to Arvin Haslem, 10-27-2018 14:38:36  
Quoting Removed, click Modern View to see

Bingo... good catch...



[Log in to Reply]  [No Email]
ddavis1172

12-16-2018 06:52:28




Report to Moderator
 Re: NAA carburetor still flooding in reply to Arvin Haslem, 10-27-2018 14:38:36  
Quoting Removed, click Modern View to see[code:1:e2883a1d95][/code:1:e2883a1d95]

Hope you have solved your carb problem by npw. Mine was the same. I found the replacement seat was too long and would not go all the way down. Checking tisco the only one they sold was too long. On ebay I found one that was shorter.



[Log in to Reply]  [No Email]
JimCar

10-29-2018 14:27:39




Report to Moderator
 Re: NAA carburetor still flooding in reply to Arvin Haslem, 10-27-2018 14:38:36  
Do you have a gasket on the float valve seat??

third party image



[Log in to Reply]  [No Email]
CTPhil

10-28-2018 06:48:13




Report to Moderator
 Re: NAA carburetor still flooding in reply to Arvin Haslem, 10-27-2018 14:38:36  
I know the China clone carburetor issue is controversial, but at the price for a whole carburetor, it's worth considering. The rebuild kits are coming from China anyways. I've yet to put one on a Ford, but have fit several on Kohler one cylinder engines with a surprising rate of success. I too am frustrated with carburetor rebuilding, I've rebuilt 4 MS carbs in the last year and have had all of them on and off the tractors too many times to count.

[Log in to Reply]  [No Email]
pinball

10-27-2018 21:24:00




Report to Moderator
 Re: NAA carburetor still flooding in reply to Arvin Haslem, 10-27-2018 14:38:36  
I bought an naa tractor still 6 volt. had trouble getting it to start. once it did it would run okay. I have never been able to rebuild a carb so I went on ebay. several places had the carb. I bought on for 58 bucks shipped t my house. would have probably spent 30 bucks for a kit. the old tractor starts right up every time. I have been told by a ford tractor parts place there all made overseas for these old fords. I did the same thing on an 8n I use to have. it worked fine also. that's just my experience hope it helps. good luck

[Log in to Reply]  [No Email]
Royse

10-27-2018 17:47:08




Report to Moderator
 Re: NAA carburetor still flooding in reply to Arvin Haslem, 10-27-2018 14:38:36  
I've had a few cause me fits like that.
I didn't find the leak until I set the top half right-side up with the

floats in a glass jar, fuel attached, then watched for it to leak.
Sometimes the problem was that the seat did not seal to the carb
top half, even though it was tight. The needle and float were fine.

They did not leak instantly as soon as the fuel was turned on though.

It took them a few minutes to start leaking.

[Log in to Reply]  [No Email]
Jim L WA

10-27-2018 16:23:53




Report to Moderator
 Re: NAA carburetor still flooding in reply to Arvin Haslem, 10-27-2018 14:38:36  
Arvin, I remember your post from last week and thought you got some good advise. I think we are all missing the mark here. You have proven that the float and needle will shut off the gas at the seat. I would take the whole carburetor apart again and look for something you missed during rebuild. It sounds like the gas is flowing right out of the bowl and into the air horn. As for your question about a Zenith carburetor, I don't know. I've never been around one.

[Log in to Reply]  [No Email]
Den N Ms

10-27-2018 15:02:28




Report to Moderator
 Re: NAA carburetor still flooding in reply to Arvin Haslem, 10-27-2018 14:38:36  
Arvin,Does your float have any gas inside of it?Remove it and shake it close to your ear and listen for sloshing.The float could be gas loged.



[Log in to Reply]  [No Email]
Arvin Haslem

10-27-2018 15:13:47




Report to Moderator
 Re: NAA carburetor still flooding in reply to Den N Ms, 10-27-2018 15:02:28  
I checked for that earlier today. It was okay. Thanks.



[Log in to Reply]  [No Email]
riveroadrat

10-29-2018 17:26:12




Report to Moderator
 Re: NAA carburetor still flooding in reply to Arvin Haslem, 10-27-2018 15:13:47  
I had some give me fits too. I think its hit or miss with those Viton tip needles. I watched mine with the bowl off sometimes it would stick and other times it wouldn't. If you can get it where it wont flood while its running and operates fine I would just put a downline shutoff valve between the carb and tank. Does anyone have any solid brass needles they are willing to sell?



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


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. [ About Us ]

Home  |  Forums


Today's Featured Article - Trenching With a Plow - by Staff. Introduction: This interesting information came from one of the discussion forums here at YT. We thought we should place it up front so it could be read by anyone interested in putting old iron to work. [Editor] I tried something new today, and it worked so well I thought I should post it - in case it might help someone else. I'm running 100 yards of 4" drain pipe from the gutter downspouts of our house to a pond down the hill. This should hel ... [Read Article]

Latest Ad: 990 7 foot mower conditioner john deere hay rake pto driven john deere head carrier [More Ads]

Copyright © 1997-2021 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