Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Farmall & IHC Tractors Discussion Forum
:

Carb Rebuild - Float Valve Help

Welcome Guest, Log in or Register
Author 
Jerry Ward

09-19-2004 16:04:53




Report to Moderator

Trying to rebuild the carb (Zenith type) on a Farmall C and can't get the float valve seat out. I'm trying to unscrew it and parts of it are starting to break off. How do you guys get it off? Others that I've done, it's been almost 20 years, came out with very little effort. If worse comes to worse can it bill drilled & tapped?




[Log in to Reply]   [No Email]
Paul in Mich

09-20-2004 06:32:01




Report to Moderator
 Re: Carb Rebuild - Float Valve Help in reply to Jerry Ward, 09-19-2004 16:04:53  
Jerry, I had the same situation just a week or so ago, and I tried everything from heat to vice grips to sawing a slot to the opposite side of the existing one, but nothing short of drilling the old seat worked. The hole is centered so unless you have distorted the hole, the drill will follow the center. The outer threads of the seat are 3/8 fine, so you can go up to a 5/16 drill size, but I suggest starting out with a drill that will drop into the hole and hand drill through the seat first. Then go up a size and drill incrementally until you get to 5/16. At that point all you should have left is a very thin wall and the threads which you can pick out in just a couple of pieces. The thing to remember and the reason I suggested working up incrementally to the largest size drill is because the seat being brass will cause the drill to grab very easily and snatch the part out of your hand or worse. Its an "easy does it" task, but it worked fine for me with no damage to the top of the carburetor.

[Log in to Reply]  [No Email]
MagMan

09-19-2004 16:13:41




Report to Moderator
 Re: Carb Rebuild - Float Valve Help in reply to Jerry Ward, 09-19-2004 16:04:53  
Ouch It doesnt have a nut type head to get a socket On? JON



[Log in to Reply]  [No Email]
Ol Chief

09-19-2004 18:45:13




Report to Moderator
 Re: Carb Rebuild - Float Valve Help in reply to MagMan, 09-19-2004 16:13:41  
Jerry;It's me again. If you want to try another removal method,go to the ice cream store or supermarket.Buy a small piece of dry ice. (hurry home) Try to keep the base metal warm.Warm water maybe. Then place the dry ice on the seat and freeze it. The brass fitting will shrink and should remove easily.Dry ice is a couple hundred degrees below freezing so watch your fingers.



[Log in to Reply]  [No Email]
Jerry Ward

09-19-2004 17:41:49




Report to Moderator
 Re: Carb Rebuild - Float Valve Help in reply to MagMan, 09-19-2004 16:13:41  
No, it's got a slot. But since the valve goes up through the center there is only the outer rim wht the slot cut in it for the screwdrive to catch.



[Log in to Reply]  [No Email]
Ol Chief

09-19-2004 18:20:45




Report to Moderator
 Re: Carb Rebuild - Float Valve Help in reply to Jerry Ward, 09-19-2004 17:41:49  
Jerry Don't sweat it!If possible get a piece of lead or a soft copper bar.(If you need to anneal the copper,heat it to red hot and plunge it into cold water). It will then be very soft.Then use some sort of common sense means to support the main body of the carb top with out danger of damage.Place the lead of copper on the face of the offending fitting and give light but sharp taps with a small hammer.CAUTION Begin w/ only light blows and work up if needed.Since the valve seat area is well below the surface you will not cause seat damage.After each series of taps try removal.If bar stock lead or copper is not easy to obtain then get some sheet lead and cut several small wafers to place on top of the fitting.This same principle of jarring a tight thread on pipe or fasteners of any sort will work in almost all cases.The exception being that usually a soft cushion is is not necessary.Good Luck.Ol Chief

[Log in to Reply]  [No Email]
CNKS

09-19-2004 18:07:02




Report to Moderator
 Re: Carb Rebuild - Float Valve Help in reply to Jerry Ward, 09-19-2004 17:41:49  
You will get a new one with your kit, so IF you can get it out without messing up the threads, you will be ok.



[Log in to Reply]  [No Email]
Jerry Ward

09-19-2004 18:11:14




Report to Moderator
 Re: Carb Rebuild - Float Valve Help in reply to CNKS, 09-19-2004 18:07:02  
There is a new one in the kit, but how to get the old one out is the question.



[Log in to Reply]  [No Email]
CNKS

09-19-2004 18:21:36




Report to Moderator
 Re: Carb Rebuild - Float Valve Help in reply to Jerry Ward, 09-19-2004 18:11:14  
I almost said vice grips, but since that is brass, you can destroy it pretty easy. Then you will have to very carefully drill it out -- don't ask me to do it for you!



[Log in to Reply]  [No Email]
Jerry Ward

09-20-2004 15:52:26




Report to Moderator
 Re: Carb Rebuild - Float Valve Help in reply to CNKS, 09-19-2004 18:21:36  
A shot of Penatrating oil (PB Blaster) over night and a bigger screwdriver did the trick.



[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


Copyright © 1997-2023 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